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    "textoCompleto" => "<span class="elsevierStyleSections"><span id="sec0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0105">Introducci&#243;n</span><p id="par0005" class="elsevierStylePara elsevierViewall">En la actualidad&#44; la importancia de que los gases administrados en ventilaci&#243;n mec&#225;nica lleguen al paciente en condiciones adecuadas de calor y humedad a trav&#233;s de los circuitos del respirador es indiscutible&#46; M&#250;ltiples estudios han demostrado que la humidificaci&#243;n deficiente de dichos gases perpetuada en el tiempo ocasiona alteraciones como disfunci&#243;n mucociliar&#44; inflamaci&#243;n&#44; ulceraci&#243;n y necrosis del epitelio respiratorio&#44; as&#237; como un aumento de la viscosidad de las secreciones respiratorias&#46; Esto consecuentemente se traduce en un aumento de la incidencia de obstrucci&#243;n del tubo endotraqueal&#44; de la resistencia al flujo a&#233;reo&#44; de atelectasias e infecciones respiratorias &#40;neumon&#237;a y traqueobronquitis&#41; asociadas a la ventilaci&#243;n mec&#225;nica<a class="elsevierStyleCrossRef" href="#bib0160"><span class="elsevierStyleSup">1</span></a>&#46;</p><p id="par0010" class="elsevierStylePara elsevierViewall">La intubaci&#243;n orotraqueal supone un cortocircuito a la naso-oro-faringe&#44; zona anat&#243;mica encargada de administrar el 75&#37; del calor y de la humedad de los gases durante la respiraci&#243;n&#46; Adem&#225;s&#44; hay que tener en cuenta que los gases medicinales habitualmente se encuentran en condiciones de baja temperatura &#40;10-15<span class="elsevierStyleHsp" style=""></span>&#176;C&#41;&#44; anhidrosis &#40;humedad absoluta &#91;HA&#93; 0-0&#44;5 mgH<span class="elsevierStyleInf">2</span>O&#47;l y humedad relativa &#91;HR&#93; 2&#37;&#41;&#46; Por ello&#44; se han desarrollado diversos m&#233;todos de calentamiento y humidificaci&#243;n de los gases administrados durante la ventilaci&#243;n mec&#225;nica&#58; los humidificadores pasivos o narices artificiales &#40;<span class="elsevierStyleItalic">Heat and Moisture Exchangers</span> &#91;HME&#93;&#41; y los humidificadores activos &#40;<span class="elsevierStyleItalic">Heat Humidifiers</span> &#91;HH&#93;&#41;<a class="elsevierStyleCrossRefs" href="#bib0160"><span class="elsevierStyleSup">1&#44;2</span></a>&#46;</p><p id="par0015" class="elsevierStylePara elsevierViewall">Los HME act&#250;an de forma pasiva atrapando el calor y la humedad del aire espirado por el paciente y devolvi&#233;ndolos en la siguiente inspiraci&#243;n&#46; Sus principales ventajas son su sencillez y bajo coste&#59; sin embargo&#44; est&#225;n contraindicados en caso de abundantes secreciones respiratorias y en caso de ventilaci&#243;n con vol&#250;menes corrientes bajos &#40;como en la ventilaci&#243;n protectora&#41; debido a que incrementan el espacio muerto&#44; lo que puede aumentar la PaCO<span class="elsevierStyleInf">2</span>&#46; Los humidificadores activos se componen de una c&#225;mara reservorio de agua est&#233;ril calentada por una placa&#46; Los gases medicinales fr&#237;os y anhidros pasan por la c&#225;mara adquiriendo calor y humedad hasta un acondicionamiento &#243;ptimo &#40;37<span class="elsevierStyleHsp" style=""></span>&#176;C&#44; HA 44<span class="elsevierStyleHsp" style=""></span>mg H<span class="elsevierStyleInf">2</span>O&#47;l y HR 100&#37;&#41; y son transportados por la tubuladura inspiratoria hacia el paciente&#46; Habitualmente se emplean tubuladuras dotadas de un alambre calentador que impide la condensaci&#243;n del vapor de agua al disminuir la temperatura en el trayecto del calentador al paciente<a class="elsevierStyleCrossRef" href="#bib0170"><span class="elsevierStyleSup">3</span></a>&#46;</p><p id="par0020" class="elsevierStylePara elsevierViewall">Al instaurar la ventilaci&#243;n mec&#225;nica&#44; los mecanismos de defensa habituales&#44; como la tos y el aclaramiento mucociliar&#44; se encuentran disminuidos&#44; lo que aumenta considerablemente el riesgo de infecci&#243;n&#46; La neumon&#237;a asociada a la ventilaci&#243;n &#40;NAV&#41; constituye la principal causa de mortalidad debida a infecciones relacionadas con la atenci&#243;n hospitalaria&#44; sobre todo cuando es provocada por microorganismos multirresistentes&#46; Su diagn&#243;stico en ocasiones es impreciso&#44; lo que conduce a sobretratamiento antibi&#243;tico<a class="elsevierStyleCrossRefs" href="#bib0175"><span class="elsevierStyleSup">4&#8211;7</span></a>&#46;</p><p id="par0025" class="elsevierStylePara elsevierViewall">Existen controversias sobre cu&#225;l es el sistema de humidificaci&#243;n m&#225;s adecuado y sobre su influencia en la incidencia de la infecci&#243;n respiratoria asociada a la ventilaci&#243;n mec&#225;nica&#46; El objetivo principal de este estudio fue evaluar las diferencias en la incidencia de infecci&#243;n asociada a ventilaci&#243;n mec&#225;nica &#40;NAV y TAV&#41; entre paciente ventilados con humidificaci&#243;n pasiva y activa&#44; una vez instauradas todas las medidas preventivas de la infecci&#243;n asociada a la ventilaci&#243;n incluidas en el Programa Neumon&#237;a Zero&#46;</p></span><span id="sec0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0110">Pacientes y m&#233;todo</span><p id="par0030" class="elsevierStylePara elsevierViewall">Se realiz&#243; un estudio de cohortes retrospectivo unic&#233;ntrico cuasi-experimental de tipo pre-postintervenci&#243;n&#44; durante los meses de enero a diciembre del a&#241;o 2014 y de enero a diciembre del a&#241;o 2016&#44; en el Servicio de Medicina Intensiva de un hospital univesitario de tercer nivel de 14 camas con atenci&#243;n a pacientes m&#233;dicos&#44; traum&#225;ticos y quir&#250;rgicos&#44; con un 52&#37; de pacientes en VM y un Apache-II medio de 17&#44;5 puntos&#46; Se incluyeron de manera consecutiva todos los pacientes conectados a la ventilaci&#243;n mec&#225;nica invasiva &#40;VMI&#41; durante m&#225;s de 48<span class="elsevierStyleHsp" style=""></span>horas&#46; Se excluyeron a los pacientes menores de 18 a&#241;os&#46; Los pacientes recibieron humidificaci&#243;n desde el momento de la intubaci&#243;n&#46;</p><p id="par0035" class="elsevierStylePara elsevierViewall">Durante el a&#241;o 2014 se emple&#243; humidificaci&#243;n pasiva con intercambiadores calor-humedad higrosc&#243;picos con filtro antibacteriano &#40;modelo <span class="elsevierStyleItalic">EdithFlex</span> de la marca <span class="elsevierStyleItalic">AirlifeTM&#174;</span>&#41; en todos los pacientes ventilados&#44; que seg&#250;n la casa comercial&#44; proporciona una HA de entre 32&#44;5 y 33&#44;5 cmH<span class="elsevierStyleInf">2</span>O&#47;l&#44; a&#241;adiendo un volumen de espacio muerto de 90<span class="elsevierStyleHsp" style=""></span>ml&#46; Los dispositivos HME se recambiaron cada 72<span class="elsevierStyleHsp" style=""></span>horas seg&#250;n protocolo&#44; pudiendo ser recambiados antes si se observaba contaminaci&#243;n del filtro por secreciones respiratorias o m&#237;nima condensaci&#243;n que causara aumento en las resistencias de la v&#237;a a&#233;rea&#46;</p><p id="par0040" class="elsevierStylePara elsevierViewall">Durante el a&#241;o 2016 todos los pacientes fueron tratados mediante humidificaci&#243;n activa con una c&#225;mara de llenado autom&#225;tico &#40;Fisher&#38;Paykel<span class="elsevierStyleItalic">&#174;</span> MR850&#41;&#44; con alambre calentador de la tubuladura inspiratoria&#44; a una temperatura de 37<span class="elsevierStyleHsp" style=""></span>&#176;C &#40;HA 44<span class="elsevierStyleHsp" style=""></span>mgH<span class="elsevierStyleInf">2</span>O&#47;l&#44; HR 100&#37;&#41;&#46; El circuito se recambi&#243; cada 21 d&#237;as en caso de VMI prolongada&#46;</p><p id="par0045" class="elsevierStylePara elsevierViewall">Los pacientes ventilados mec&#225;nicamente durante el a&#241;o 2015 no fueron incluidos&#44; al tratarse de un periodo de cambio en la estrategia de humidificaci&#243;n debido a la implantaci&#243;n del uso de humidificaci&#243;n activa en los pacientes conectados a la VMI&#46;</p><p id="par0050" class="elsevierStylePara elsevierViewall">En ambos periodos del estudio se establecieron las mismas medidas para la prevenci&#243;n de la NAV en el marco de participaci&#243;n en el Proyecto Nacional Neumon&#237;a Zero&#58; educaci&#243;n y entrenamiento del personal sanitario en el manejo de la v&#237;a a&#233;rea &#40;aspiraci&#243;n de secreciones bronquiales&#41;&#44; higiene de manos estricta con soluciones alcoh&#243;licas cuando se manipula la v&#237;a a&#233;rea&#44; higiene oral con soluci&#243;n de clorhexidina &#40;0&#44;12&#37;&#41;&#44; control y mantenimiento de la presi&#243;n del neumotaponamiento&#44; posici&#243;n semiincorporada&#44; promover procedimientos y protocolos que reducen el tiempo de ventilaci&#243;n &#40;protocolos de <span class="elsevierStyleItalic">weaning</span> y de sedaci&#243;n&#41;&#44; evitar el cambio programado del circuito del ventilador&#44; humidificadores y tubos endotraqueales&#44; descontaminaci&#243;n selectiva de la orofaringe &#40;soluci&#243;n de tobramicina&#44; colistina y nistatina&#41; y empleo de tubos endotraqueales con sistema de aspiraci&#243;n continua de secreciones subgl&#243;ticas<a class="elsevierStyleCrossRef" href="#bib0195"><span class="elsevierStyleSup">8</span></a>&#46;</p><p id="par0055" class="elsevierStylePara elsevierViewall">Se recogieron las siguientes variables&#58; edad&#44; sexo&#44; factores de riesgo de neumon&#237;a asociada a la ventilaci&#243;n &#40;infecci&#243;n por virus de la inmunodeficiencia humana &#91;VIH&#93;&#44; enfermedad renal cr&#243;nica &#91;ERC&#93;&#44; enfermedad pulmonar obstructiva cr&#243;nica &#91;EPOC&#93;&#44; diabetes mellitus &#91;DM&#93;&#44; trasplante&#44; neoplasia activa&#44; neutropenia&#44; cirrosis hep&#225;tica&#41;&#44; escala APACHE-II al ingreso&#44; d&#237;as de ventilaci&#243;n mec&#225;nica invasiva&#44; tipo de humidificaci&#243;n empleada&#44; antibioterapia previa &#40;definida como utilizaci&#243;n de antibi&#243;ticos por v&#237;a parenteral en las 24<span class="elsevierStyleHsp" style=""></span>horas previas al inicio de la VMI&#41;&#44; incidencia de NAV y TAV&#44; d&#237;as hasta el desarrollo de la neumon&#237;a&#44; tipo de muestra microbiol&#243;gica extra&#237;da &#40;broncoaspirado&#44; lavado broncoalveolar&#44; cat&#233;ter telescopado&#41;&#44; resultado de los cultivos cuantitativos&#44; d&#237;as de estancia en UCI y estado al alta de UCI y al alta hospitalaria &#40;vivo&#44; exitus&#41;&#46; Los datos fueron obtenidos retrospectivamente del sistema inform&#225;tico de gesti&#243;n cl&#237;nica de nuestro centro &#40;IMASIS&#41;&#46; Dos cl&#237;nicos revisaron de forma independiente todos los pacientes ventilados mec&#225;nicamente durante el periodo de estudio y reevaluaron conjuntamente el diagn&#243;stico de NAV y TAV&#46; En caso de discordancia de opiniones&#44; un tercer cl&#237;nico actu&#243; como revisor de desempate&#46;</p><p id="par0060" class="elsevierStylePara elsevierViewall">El diagn&#243;stico de NAV se realiz&#243; seg&#250;n los criterios establecidos por la ECDC y para la TAV los establecidos por la CDC<a class="elsevierStyleCrossRef" href="#bib0200"><span class="elsevierStyleSup">9</span></a>&#46; Se emplearon criterios cl&#237;nicos &#40;fiebre&#44; leucocitosis o leucopenia&#44; secreciones purulentas&#44; auscultaci&#243;n respiratoria&#44; tos&#44; disnea o taquipnea y deterioro progresivo del intercambio gaseoso&#41;&#44; radiol&#243;gicos &#40;nueva imagen sugestiva de neumon&#237;a en la radiograf&#237;a de t&#243;rax o TAC tor&#225;cica&#41; y microbiol&#243;gicos &#40;cultivos cuantitativos de broncoaspirado&#44; lavado broncoalveolar o cat&#233;ter telescopado&#41;&#46; Se consider&#243; NAV precoz aquella desarrollada en &#8804;<span class="elsevierStyleHsp" style=""></span>7 d&#237;as del inicio de la VMI&#46;</p><span id="sec0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0115">An&#225;lisis estad&#237;stico</span><p id="par0065" class="elsevierStylePara elsevierViewall">Para el an&#225;lisis estad&#237;stico inicial&#44; las variables cuantitativas fueron expresadas mediante la mediana y los cuartiles &#40;P<span class="elsevierStyleInf">25</span> y P<span class="elsevierStyleInf">75</span>&#41;&#46; Las variables categ&#243;ricas se describieron mediante tabla de frecuencias &#40;n&#250;mero y porcentaje&#41;&#46;</p><p id="par0070" class="elsevierStylePara elsevierViewall">Se evaluaron posibles diferencias entre los grupos de humidificaci&#243;n activa y pasiva mediante test Chi-cuadrado para las variables categ&#243;ricas &#40;o el test exacto de Fisher seg&#250;n correspondiere&#41; y el test no param&#233;trico de Mann-Whitney para las variables continuas&#46; Esos mismos test se utilizaron en el an&#225;lisis bivariado para la valoraci&#243;n de posibles factores asociados a NAV y TAV&#46; Asimismo&#44; se realiz&#243; un an&#225;lisis multivariado de los <span class="elsevierStyleItalic">outcomes</span> NAV y TAV&#44; teniendo como factor principal el grupo de humidificaci&#243;n y ajustando por posibles factores de confusi&#243;n&#44; escogiendo aquellas variables para las cuales se encontraron diferencias significativas en la comparaci&#243;n entre los grupos de humidificaci&#243;n activa y pasiva&#46;</p><p id="par0075" class="elsevierStylePara elsevierViewall">Se estimaron tasas de incidencia NAV y TAV por 1&#46;000 d&#237;as de VMI en ambos grupos&#44; as&#237; como de NAV precoz y tard&#237;a&#44; y se valoraron diferencias estad&#237;sticamente significativas mediante regresi&#243;n Poisson contrastando la hip&#243;tesis de raz&#243;n de tasas<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>1&#46; Finalmente&#44; se valoraron posibles diferencias entre grupos en la mortalidad intra-UCI&#46; Para ello se dibujaron las curvas de supervivencia y se aplic&#243; en test de log-rank&#46;</p><p id="par0080" class="elsevierStylePara elsevierViewall">Para el an&#225;lisis estad&#237;stico se utiliz&#243; el programa STATA versi&#243;n 15&#46;1 &#40;StataCorp&#44; College Station&#44; TX&#44; EE&#46; UU&#46;&#41;&#46; Se obtuvo la aprobaci&#243;n del CEIC 2018 del Hospital del Mar&#46;</p></span></span><span id="sec0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0120">Resultados</span><p id="par0085" class="elsevierStylePara elsevierViewall">Se analizaron 287 pacientes de los cuales 116 recibieron humidificaci&#243;n pasiva y 171 humidificaci&#243;n activa&#46; Las caracter&#237;sticas basales de los pacientes se muestran en la <a class="elsevierStyleCrossRef" href="#tbl0005">tabla 1</a>&#46; Los pacientes de ambos grupos presentaban caracter&#237;sticas similares en cuanto a edad&#44; sexo&#44; escala APACHE-II&#44; historia de diabetes mellitus&#44; enfermedad pulmonar obstructiva cr&#243;nica&#44; enfermedad renal cr&#243;nica&#44; infecci&#243;n por el virus de la inmunodeficiencia humana&#44; trasplante o neoplasia activa&#44; d&#237;as de ventilaci&#243;n mec&#225;nica y d&#237;as de estancia en UCI&#46; Se encontraron diferencias significativas en la prevalencia del diagn&#243;stico de neoplasia activa y en la tasa de antibioterapia previa&#44; definida como el inicio de tratamiento antibi&#243;tico en las 24<span class="elsevierStyleHsp" style=""></span>horas previas al inicio de la ventilaci&#243;n mec&#225;nica invasiva&#44; siendo ambos par&#225;metros superiores en el grupo de HME&#46;</p><elsevierMultimedia ident="tbl0005"></elsevierMultimedia><p id="par0090" class="elsevierStylePara elsevierViewall">En la <a class="elsevierStyleCrossRef" href="#tbl0010">tabla 2</a> se muestra la densidad de incidencia de NAV y TAV seg&#250;n tipo de humidificador&#46; En el an&#225;lisis de regresi&#243;n log&#237;stica se identific&#243; como &#250;nico factor de riesgo para el desarrollo de infecci&#243;n asociada a la ventilaci&#243;n mec&#225;nica la duraci&#243;n de la VMI &#40;OR 1&#44;07 &#91;IC 95&#37;&#58; 1&#44;02-1&#44;1&#93;&#59; p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#44;007&#41;&#46; La antibioterapia previa&#44; aunque tampoco aument&#243; el riesgo de desarrollar NAV&#44; s&#237; present&#243; una tendencia a su incremento&#46; No se identific&#243; ning&#250;n factor de riesgo asociado con el desarrollo de TAV &#40;<a class="elsevierStyleCrossRef" href="#tbl0015">tabla 3</a>&#41;&#46;</p><elsevierMultimedia ident="tbl0010"></elsevierMultimedia><elsevierMultimedia ident="tbl0015"></elsevierMultimedia><p id="par0095" class="elsevierStylePara elsevierViewall">La tasa de mortalidad intra-UCI de la muestra fue del 31&#44;6&#37;&#44; sin encontrar diferencias significativas entre la cohorte que emple&#243; humidificaci&#243;n pasiva y activa &#40;36&#44;2&#37; y 28&#44;2&#37; respectivamente&#59; p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#44;628&#41;&#46; En la <a class="elsevierStyleCrossRef" href="#fig0005">figura 1</a> se muestra el an&#225;lisis de supervivencia intra-UCI &#40;curvas de Kaplan-Meier&#41;&#46;</p><elsevierMultimedia ident="fig0005"></elsevierMultimedia><p id="par0100" class="elsevierStylePara elsevierViewall">A nivel microbiol&#243;gico los microorganismos m&#225;s frecuentes en ambos grupos fueron los bacilos gramnegativos&#44; <span class="elsevierStyleCrossOut">s</span>eguidos de los grampositivos&#44; virus y hongos&#44; tanto en los casos de NAV como de TAV&#46; En 3 &#40;20&#37;&#41; casos de ventilaci&#243;n con HME y en 5 &#40;31&#44;2&#37;&#41; casos de NAV se aisl&#243; <span class="elsevierStyleItalic">Candida albicans</span> en las muestras respiratorias&#44; interpretado como colonizaci&#243;n&#46; En la <a class="elsevierStyleCrossRef" href="#tbl0020">tabla 4</a> se describen los microorganismos aislados&#46;</p><elsevierMultimedia ident="tbl0020"></elsevierMultimedia></span><span id="sec0025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0125">Discusi&#243;n</span><p id="par0105" class="elsevierStylePara elsevierViewall">Este estudio compara la influencia del tipo de humidificaci&#243;n empleada en la incidencia de NAV y TAV una vez instauradas todas las medidas incluidas en el Proyecto Nacional Neumon&#237;a Zero&#46; Ning&#250;n estudio previo ha evaluado su impacto en la incidencia de TAV&#46; La mayor&#237;a de estudios publicados datan de antes del a&#241;o 2006&#44; pocos son los estudios que posteriormente se han realizado y ninguno de ellos en el contexto de un programa de prevenci&#243;n&#46; La evidencia m&#225;s actual se basa en los metaan&#225;lisis publicados&#44; que recogen estudios de hace m&#225;s de 10 a&#241;os que pueden no reflejar la situaci&#243;n actual tras las mejoras aplicadas en este campo y&#44; adem&#225;s&#44; se trata de estudios de baja calidad altamente heterog&#233;neos en cuanto a los criterios utilizados en cuanto a la definici&#243;n de neumon&#237;a se refiere<a class="elsevierStyleCrossRefs" href="#bib0205"><span class="elsevierStyleSup">10&#8211;14</span></a>&#46;</p><p id="par0110" class="elsevierStylePara elsevierViewall">La NAV era la causa m&#225;s frecuente de infecci&#243;n nosocomial en las UCI nacionales hasta la implantaci&#243;n del Proyecto Neumon&#237;a Zero<a class="elsevierStyleCrossRef" href="#bib0230"><span class="elsevierStyleSup">15</span></a>&#46; Su importante impacto en la morbimortalidad&#44; con un aumento asociado de estancia hospitalaria en una media de 7 a 9 d&#237;as por paciente y mortalidad atribuible entre el 33&#37; y el 50&#37;<a class="elsevierStyleCrossRef" href="#bib0235"><span class="elsevierStyleSup">16</span></a>&#44; justifica el inter&#233;s continuo en el conocimiento de los factores que pueden influir en su fisiopatogenia y en la b&#250;squeda de estrategias para su prevenci&#243;n&#46; La TAV es un diagn&#243;stico intermedio entre colonizaci&#243;n traqueobronquial y la NAV y&#44; aunque la bibliograf&#237;a actualmente es contradictoria&#44; est&#225; por determinar si se puede considerar como un paso evolutivo a NAV<a class="elsevierStyleCrossRef" href="#bib0240"><span class="elsevierStyleSup">17</span></a>&#46;</p><p id="par0115" class="elsevierStylePara elsevierViewall">Debido a la discordancia en las conclusiones de los estudios publicados&#44; las gu&#237;as y recomendaciones de las diferentes sociedades cient&#237;ficas&#44; basadas en la evidencia disponible&#44; no recomiendan qu&#233; tipo de humidificaci&#243;n es preferible para prevenir la NAV<a class="elsevierStyleCrossRefs" href="#bib0195"><span class="elsevierStyleSup">8&#44;18</span></a>&#46; La humidificaci&#243;n pasiva presenta menor rendimiento en t&#233;rminos de calor y humedad respecto a la humidificaci&#243;n activa<a class="elsevierStyleCrossRef" href="#bib0245"><span class="elsevierStyleSup">18</span></a>&#46; Una de las principales desventajas de los HME es el incremento del espacio muerto que depende principalmente del volumen interno del filtro&#44; lo que podr&#237;a suponer una carga dif&#237;cil de tolerar en pacientes con baja reserva ventilatoria&#44; especialmente relevante cuando la enfermedad obliga a implementar estrategias de ventilaci&#243;n protectora<a class="elsevierStyleCrossRefs" href="#bib0250"><span class="elsevierStyleSup">19&#8211;24</span></a>&#46; La mayor resistencia que pueden aportar los HME&#44; aunque en ocasiones considerada despreciable&#44; podr&#237;a no ser as&#237; en el caso de acumulaci&#243;n de l&#237;quido por condensaci&#243;n o impactaci&#243;n de secreciones&#46; Por otra parte&#44; con el uso de los HH se ha descrito riesgo de lesi&#243;n de la v&#237;a a&#233;rea por temperatura excesiva&#44; limitaci&#243;n al flujo de aire por condensaci&#243;n en las tubuladuras&#44; aparici&#243;n de asincron&#237;as y posible colonizaci&#243;n del circuito<a class="elsevierStyleCrossRefs" href="#bib0170"><span class="elsevierStyleSup">3&#44;25&#44;26</span></a>&#46;</p><p id="par0120" class="elsevierStylePara elsevierViewall">El proyecto Neumon&#237;a Zero se inici&#243; en 2011 en 181<span class="elsevierStyleHsp" style=""></span>UCI del territorio espa&#241;ol&#46; Con la implementaci&#243;n de las medidas incluidas se objetiv&#243; una reducci&#243;n superior al 50&#37; en la densidad de incidencia nacional de NAV &#40;desde 9&#44;83 a 4&#44;34&#47;1&#46;000 d&#237;as de VMI&#41; tras 19-21 meses desde el inicio del proyecto&#46; Dichos resultados se mantuvieron constantes en los a&#241;os siguientes&#44; lo que indica que las recomendaciones han sido incorporadas en la pr&#225;ctica diaria habitual de nuestras UCI<a class="elsevierStyleCrossRef" href="#bib0290"><span class="elsevierStyleSup">27</span></a>&#46; Seg&#250;n el informe anual del registro ENVIN-HELICS &#40;Estudio nacional de infecci&#243;n nosocomial en las unidades de cuidados intensivos&#41;&#44; la densidad de incidencia de NAV en 2014 fue de 6&#44;31&#47;1&#46;000 d&#237;as de VMI y de 6&#44;26&#47;1&#46;000 d&#237;as de VMI en 2016<a class="elsevierStyleCrossRef" href="#bib0295"><span class="elsevierStyleSup">28</span></a>&#46; En nuestro estudio la densidad de incidencia para NAV durante el mismo periodo de tiempo se encuentra por debajo de dichos resultados&#44; y se asemeja m&#225;s a los resultados registrados por el registro Envin-Helics a nivel nacional en 2018 &#40;5&#44;87&#47;1&#46;000 d&#237;as de VMI&#41;<a class="elsevierStyleCrossRef" href="#bib0295"><span class="elsevierStyleSup">28</span></a>&#46; As&#237; mismo se encuentra por debajo del est&#225;ndar de 7 episodios por 1&#46;000 d&#237;as de VMI recomendado en el a&#241;o 2017 en los indicadores de calidad de la Sociedad Espa&#241;ola de Medicina Intensiva&#44; Cr&#237;tica y Unidades Coronarias<a class="elsevierStyleCrossRef" href="#bib0310"><span class="elsevierStyleSup">29</span></a>&#46; Esto sugiere que nuestro grupo se encuentra altamente sensibilizado y que presenta una amplia experiencia en el control de la infecci&#243;n nosocomial en el paciente cr&#237;tico&#46; Por ello hemos querido evaluar&#44; en este contexto&#44; el posible impacto de 2 sistemas de humidificaci&#243;n en la incidencia no solo de NAV&#44; sino tambi&#233;n de TAV&#44; sin encontrar diferencias en su densidad de incidencia&#44; lo que confirma la seguridad de la humidificaci&#243;n activa en este &#225;mbito&#46;</p><p id="par0125" class="elsevierStylePara elsevierViewall">En nuestros resultados destaca un mayor n&#250;mero de aislamientos de <span class="elsevierStyleItalic">Aspergillus</span> como causa de neumon&#237;a en el grupo de HH&#58; 4 aislamientos en 3 pacientes del grupo HH y un aislamiento en un paciente del grupo HME&#44; sin poder extraer conclusiones al respecto debido al peque&#241;o tama&#241;o de la muestra&#46; Asimismo se aisl&#243; <span class="elsevierStyleItalic">Candida albicans</span> en 3 pacientes del grupo HME y 5 pacientes del grupo HH&#44; considerado como colonizaci&#243;n en todos los casos&#46; Dicho aumento de aislamiento de hongos en los pacientes portadores de HH en nuestro estudio debe ser interpretado con cautela&#44; y hacen falta estudios de calidad que certifiquen nuestros hallazgos&#46;</p><p id="par0130" class="elsevierStylePara elsevierViewall">El presente estudio tiene varias limitaciones&#46; En primer lugar&#44; el car&#225;cter cuasiexperimental&#44; retrospectivo y unic&#233;ntrico de nuestro estudio conlleva l&#243;gicos problemas de validez externa&#46; Adem&#225;s&#44; el tama&#241;o muestral no es grande&#44; si bien se asemeja al de estudios similares publicados previamente&#46; En segundo lugar&#44; la prevalencia de neoplasia activa y de antibioterapia parenteral previa a la intubaci&#243;n era significativamente mayor en el grupo de HME&#44; lo cual puede haber influenciado nuestros resultados&#46; No obstante&#44; ninguno de los 2 par&#225;metros fue identificado como factor de riesgo para NAV y TAV en el an&#225;lisis de regresi&#243;n log&#237;stica&#46; En tercer lugar&#44; el diagn&#243;stico de NAV&#44; si bien se realiz&#243; seg&#250;n los criterios del CDC&#44; no se llev&#243; a cabo mediante un procedimiento invasivo para todos los pacientes&#46; Sin embargo&#44; se emplearon cultivos cuantitativos de muestras como broncoaspirado&#44; lavado broncoalveolar o cat&#233;ter telescopado en todos los casos&#46; Por &#250;ltimo&#44; destaca la baja tasa de densidad de incidencia de TAV encontrada en nuestra serie&#44; probablemente relacionada con las dificultades para su diagn&#243;stico cl&#237;nico&#44; pudiendo pasar desapercibida en ocasiones y pudiendo ser confundida con la NAV ante la presencia de infiltrados radiol&#243;gicos de otras causas&#46; No obstante&#44; se intent&#243; disminuir dicho sesgo mediante la revisi&#243;n de cada caso por separado por 2 cl&#237;nicos diferentes&#44; e incluyendo la evaluaci&#243;n por un tercer cl&#237;nico como revisor de desempate en caso de discordancia en la recogida de datos&#46;</p><p id="par0135" class="elsevierStylePara elsevierViewall">Nuestros datos sugieren que no existen diferencias entre los HME y los HH respecto a la incidencia de NAV ni TAV una vez implementado un paquete de medidas de prevenci&#243;n de NAV&#46; Sin embargo&#44; se necesitan estudios prospectivos de calidad que comparen los diferentes tipos de HME y HH con la finalidad de poder sacar conclusiones m&#225;s firmes y &#250;tiles en la pr&#225;ctica cl&#237;nica diaria&#46;</p></span><span id="sec0030" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0130">Autor&#237;a</span><p id="par0140" class="elsevierStylePara elsevierViewall"><ul class="elsevierStyleList" id="lis0005"><li class="elsevierStyleListItem" id="lsti0005"><span class="elsevierStyleLabel">&#8226;</span><p id="par0145" class="elsevierStylePara elsevierViewall">Luc&#237;a Picazo Moreno&#58; dise&#241;o del estudio&#44; adquisici&#243;n de datos y redacci&#243;n del borrador del art&#237;culo&#46;</p></li><li class="elsevierStyleListItem" id="lsti0010"><span class="elsevierStyleLabel">&#8226;</span><p id="par0150" class="elsevierStylePara elsevierViewall">M&#46; Pilar Gracia Arnillas&#58; dise&#241;o del estudio&#44; interpretaci&#243;n de datos recogidos&#44; revisi&#243;n cr&#237;tica del contenido intelectural y aprobaci&#243;n definitiva de la versi&#243;n que se presenta&#46;</p></li><li class="elsevierStyleListItem" id="lsti0015"><span class="elsevierStyleLabel">&#8226;</span><p id="par0155" class="elsevierStylePara elsevierViewall">Rosana Mu&#241;oz-Berm&#250;dez&#58; an&#225;lisis de los datos recogidos&#44; revisi&#243;n cr&#237;tica del contenido intelectual&#44; aprobaci&#243;n definitiva de la versi&#243;n que se presenta&#46;</p></li><li class="elsevierStyleListItem" id="lsti0020"><span class="elsevierStyleLabel">&#8226;</span><p id="par0160" class="elsevierStylePara elsevierViewall">Xavier Dur&#225;n&#58; an&#225;lisis de los datos recogidos&#44; revisi&#243;n cr&#237;tica del contenido intelectual&#44; aprobaci&#243;n definitiva de la versi&#243;n que se presenta&#46;</p></li><li class="elsevierStyleListItem" id="lsti0025"><span class="elsevierStyleLabel">&#8226;</span><p id="par0165" class="elsevierStylePara elsevierViewall">Francisco &#193;lvarez Lerma&#58; interpretaci&#243;n de los datos recogidos&#44; revisi&#243;n cr&#237;tica del contenido intelectual y aprobaci&#243;n definitiva de la versi&#243;n que se presenta&#46;</p></li><li class="elsevierStyleListItem" id="lsti0030"><span class="elsevierStyleLabel">&#8226;</span><p id="par0170" class="elsevierStylePara elsevierViewall">Joan-Ram&#243;n Masclans&#58; concepci&#243;n y dise&#241;o del estudio&#44; an&#225;lisis e interpretaci&#243;n de los datos obtenidos&#44; revisi&#243;n cr&#237;tica del contenido intelectual y aprobaci&#243;n definitiva de la versi&#243;n que se presenta&#46;</p></li></ul></p></span><span id="sec0035" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0135">Conflictos de intereses</span><p id="par0175" class="elsevierStylePara elsevierViewall">El grupo de investigaci&#243;n en el IMIM del Servicio de Medicina Intensiva del Hospital del Mar recibe apoyos a la investigaci&#243;n por parte de Fisher &#38; Paykel&#46;</p></span></span>"
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        "resumen" => "<span id="abst0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0010">Objetivo</span><p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">Existen controversias sobre la influencia del sistema de humidificaci&#243;n en la incidencia de infecciones respiratorias asociadas a la ventilaci&#243;n mec&#225;nica invasiva &#40;VMI&#41;&#46; Nuestro objetivo fue evaluar las diferencias en la incidencia de neumon&#237;a y traqueobronquitis asociadas a la ventilaci&#243;n mec&#225;nica &#40;NAV y TAV respectivamente&#41; con humidificaci&#243;n pasiva y activa&#46;</p></span> <span id="abst0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0015">Dise&#241;o</span><p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">Estudio retrospectivo cuasi-experimental de tipo pre-postintervenci&#243;n&#46;</p></span> <span id="abst0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0020">&#193;mbito</span><p id="spar0015" class="elsevierStyleSimplePara elsevierViewall">UCI polivalente de 14 camas&#46;</p></span> <span id="abst0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0025">Pacientes</span><p id="spar0020" class="elsevierStyleSimplePara elsevierViewall">Se incluyeron todos los pacientes conectados a la VMI durante<span class="elsevierStyleHsp" style=""></span>&#62;<span class="elsevierStyleHsp" style=""></span>48<span class="elsevierStyleHsp" style=""></span>horas durante los a&#241;os 2014 y 2016&#46;</p></span> <span id="abst0025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0030">Intervenciones</span><p id="spar0025" class="elsevierStyleSimplePara elsevierViewall">Durante el a&#241;o 2014 se empleaba humidificaci&#243;n pasiva con un intercambiador calor-humedad &#40;HME&#41; y&#44; durante 2016&#44; humidificaci&#243;n activa &#40;HH&#41; con calentamiento de la tubuladura inspiratoria&#46; Se establecieron medidas id&#233;nticas para la prevenci&#243;n de NAV &#40;proyecto Neumon&#237;a Zero&#41;&#46;</p></span> <span id="abst0030" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0035">Variables de inter&#233;s principales</span><p id="spar0030" class="elsevierStyleSimplePara elsevierViewall">Se estimaron tasas de incidencia NAV y TAV por 1&#46;000 d&#237;as de VMI en ambos grupos y se valoraron diferencias estad&#237;sticamente significativas mediante regresi&#243;n Poisson&#46;</p></span> <span id="abst0035" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0040">Resultados</span><p id="spar0035" class="elsevierStyleSimplePara elsevierViewall">Se incluyeron 287 pacientes &#40;116 con HME y 171 con HH&#41;&#46; La densidad de incidencia de NAV por 1&#46;000 d&#237;as de VMI fue de 5&#44;68 en el grupo de HME y 5&#44;80 en el grupo de HH &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>ns&#41;&#46; La densidad de incidencia de TAV fue 3&#44;41 y 3&#44;26 casos por 1&#46;000 d&#237;as de VMI con HME y HH respectivamente &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>ns&#41;&#46; Se identific&#243; como factor de riesgo de NAV la duraci&#243;n de la VMI&#46;</p></span> <span id="abst0040" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0045">Conclusiones</span><p id="spar0040" class="elsevierStyleSimplePara elsevierViewall">En nuestro estudio la humidificaci&#243;n activa en pacientes ventilados durante<span class="elsevierStyleHsp" style=""></span>&#62;<span class="elsevierStyleHsp" style=""></span>48<span class="elsevierStyleHsp" style=""></span>horas no se asoci&#243; con un aumento de las complicaciones infecciosas respiratorias&#46;</p></span>"
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        "resumen" => "<span id="abst0045" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0055">Objective</span><p id="spar0045" class="elsevierStyleSimplePara elsevierViewall">There is controversy regarding the influence of humidification systems upon the incidence of respiratory infections associated to invasive mechanical ventilation &#40;IMV&#41;&#46; An evaluation was made of the differences in the incidence of pneumonia and tracheobronchitis associated to mechanical ventilation &#40;VAP and VAT&#44; respectively&#41; with passive and active humidification&#46;</p></span> <span id="abst0050" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0060">Design</span><p id="spar0050" class="elsevierStyleSimplePara elsevierViewall">A retrospective pre-post quasi-experimental study was carried out&#46;</p></span> <span id="abst0055" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0065">Setting</span><p id="spar0055" class="elsevierStyleSimplePara elsevierViewall">A polyvalent ICU with 14 beds&#46;</p></span> <span id="abst0060" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0070">Patients</span><p id="spar0060" class="elsevierStyleSimplePara elsevierViewall">All patients connected to IMV for<span class="elsevierStyleHsp" style=""></span>&#62;<span class="elsevierStyleHsp" style=""></span>48<span class="elsevierStyleHsp" style=""></span>hours during 2014 and 2016 were included&#46;</p></span> <span id="abst0065" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0075">Interventions</span><p id="spar0065" class="elsevierStyleSimplePara elsevierViewall">During 2014&#44; passive humidification with an hygroscopic heat and moisture exchanger &#40;HME&#41; was used&#44; while during 2016 active humidification with a heated humidifier &#40;HH&#41; and an inspiratory heated wire was used&#46; Identical measures for the prevention of VAP were established &#40;Zero Pneumonia Project&#41;&#46;</p></span> <span id="abst0070" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0080">Main outcome measures</span><p id="spar0070" class="elsevierStyleSimplePara elsevierViewall">The incidence of VAP and VAT was estimated for 1000 days of IMV in both groups&#44; and statistically significant differences were assessed using Poisson regression analysis&#46;</p></span> <span id="abst0075" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0085">Results</span><p id="spar0075" class="elsevierStyleSimplePara elsevierViewall">A total of 287 patients were included &#40;116 with HME and 171 with HH&#41;&#46; The incidence density of VAP per 1000 days of IMV was 5&#46;68 in the HME group and 5&#46;80 in the HH group &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>ns&#41;&#46; The incidence density of VAT was 3&#46;41 and 3&#46;26 cases per 1000 days of VMI with HME and HH respectively &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>ns&#41;&#46; The duration of IMV was identified as a risk factor for VAP&#46;</p></span> <span id="abst0080" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0090">Conclusions</span><p id="spar0080" class="elsevierStyleSimplePara elsevierViewall">In our population&#44; active humidification in patients ventilated for<span class="elsevierStyleHsp" style=""></span>&#62;<span class="elsevierStyleHsp" style=""></span>48<span class="elsevierStyleHsp" style=""></span>hours was not associated to an increase in respiratory infectious complications&#46;</p></span>"
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          "leyenda" => "<p id="spar0095" class="elsevierStyleSimplePara elsevierViewall">APACHE-II<span class="elsevierStyleSmallCaps">&#58;</span><span class="elsevierStyleItalic">Acute Physiology and Chronic Health Evaluation II</span>&#59; EPOC&#58; enfermedad pulmonar obstructiva cr&#243;nica&#59; VIH&#58; virus de la inmunodeficiencia humana&#59; VMI&#58; ventilaci&#243;n mec&#225;nica invasiva&#46;</p>"
          "tablatextoimagen" => array:1 [
            0 => array:2 [
              "tabla" => array:1 [
                0 => """
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                  \t\t\t\t\tvoid\n
                  \t\t\t\t" class=""><thead title="thead"><tr title="table-row"><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Grupo humidificaci&#243;n pasiva &#40;n<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>116&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Grupo humidificaci&#243;n activa &#40;n<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>171&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Total &#40;n<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>287&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">p&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th></tr></thead><tbody title="tbody"><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleItalic">Edad&#44; a&#241;os&#44; mediana &#91;p25-p75&#93;</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">64 &#91;52-76&#93;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">65 &#91;51-76&#93;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">65 &#40;51-76&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#44;864&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleItalic">Hombres&#44; n &#40;&#37;&#41;</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">71 &#40;61&#44;2&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">104 &#40;60&#44;8&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">175 &#40;61&#44;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#44;947&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleItalic">APACHE-II&#44; mediana &#91;p25-p75&#93;</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">21 &#91;15-25&#93;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">23 &#91;18-31&#93;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">22 &#91;16-29&#93;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#44;001&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " colspan="5" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleItalic">Factores de riesgo de neumon&#237;a asociada a la VMI&#44; n &#40;&#37;&#41;</span></td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>Diabetes mellitus&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">24 &#40;20&#44;7&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">53 &#40;31&#44;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">77 &#40;26&#44;8&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#44;053&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>EPOC&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">14 &#40;12&#44;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">26 &#40;15&#44;1&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">40 &#40;13&#44;9&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#44;452&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>Enfermedad renal cr&#243;nica&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">12 &#40;10&#44;2&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">25 &#40;14&#44;5&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">37 &#40;12&#44;9&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#44;280&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>Infecci&#243;n VIH&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">3 &#40;2&#44;6&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">8 &#40;4&#44;6&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">11 &#40;3&#44;8&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#44;365&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>Neoplasia activa&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">15 &#40;12&#44;8&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">8 &#40;4&#44;6&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">23 &#40;8&#44;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#44;021&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>Cirrosis hep&#225;tica&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">11 &#40;9&#44;4&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">12 &#40;7&#44;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">23 &#40;8&#44;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#44;477&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>Trasplante&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2 &#40;1&#44;8&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">10 &#40;5&#44;8&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">12 &#40;4&#44;2&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#44;087&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleItalic">Antibioterapia previa&#44; n &#40;&#37;&#41;</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">70 &#40;59&#44;8&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">54 &#40;31&#44;4&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">124 &#40;43&#44;2&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>&#60;<span class="elsevierStyleHsp" style=""></span>0&#44;001&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleItalic">D&#237;as de VMI&#44; mediana &#91;p25-p75&#93;</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">8 &#91;4-15&#93;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">7 &#91;4-16&#44;5&#93;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t">8 &#91;4-16&#93;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t">0&#44;685&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t"><span class="elsevierStyleItalic">D&#237;as de estancia en UCI&#44; mediana &#91;p25-p75&#93;</span>&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t">13 &#91;7-23&#93;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t">11 &#91;7-23&#93;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">12 &#91;7-23&#93;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t">0&#44;371&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">HH &#40;n<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>171&#41;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">p&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t">Densidad de incidencia NAV<a class="elsevierStyleCrossRef" href="#tblfn0005"><span class="elsevierStyleSup">a</span></a>&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t">2&#44;53 &#40;7&#41;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t">0&#44;59&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
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                  \t\t\t\t">NAV tard&#237;a&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t">2&#44;65 &#40;7&#41;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t">0&#44;59&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t\ttable-entry\n
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                  \t\t\t\t">Densidad de incidencia TAV<a class="elsevierStyleCrossRef" href="#tblfn0005"><span class="elsevierStyleSup">a</span></a>&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t">3&#44;41 &#40;9&#41;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t">3&#44;26 &#40;8&#41;&nbsp;\t\t\t\t\t\t\n
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          "es" => "<p id="spar0100" class="elsevierStyleSimplePara elsevierViewall">Densidad de incidencia de infecci&#243;n respiratoria asociada a la ventilaci&#243;n mec&#225;nica invasiva</p>"
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                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Valor de p&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>Humidificaci&#243;n activa&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t">0&#44;84 &#40;0&#44;35-2&#44;01&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t">0&#44;71&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
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                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>D&#237;as estancia UCI&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t">1&#44;01 &#40;0&#44;97-1&#44;05&#41;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t">0&#44;65&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>D&#237;as VMI&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t">1&#44;07 &#40;1&#44;02-1&#44;12&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#44;007&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>APACHE-II&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#44;96 &#40;0&#44;91-1&#44;02&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#44;16&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>Neoplasia activa&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2&#44;61 &#40;0&#44;59-11&#44;51&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#44;20&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
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                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>Antibioterapia previa&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t\ttop\n
                  \t\t\t\t">2&#44;11 &#40;0&#44;88-5&#44;07&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#44;09&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
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                  \t\t\t\t\ttop\n
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                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " colspan="3" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleItalic">TAV</span></td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>Humidificaci&#243;n activa&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#44;66 &#40;0&#44;24-1&#44;84&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&#44;43&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>D&#237;as estancia UCI&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t">0&#44;77 &#40;0&#44;27-2-19&#41;&nbsp;\t\t\t\t\t\t\n
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                  """
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                  \t\t\t\t">0 &#40;0&#41;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t">1 &#40;4&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
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                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Citrobacter freundii</span>&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t\ttable-entry\n
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                  \t\t\t\t">1 &#40;4&#41;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t">0 &#40;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
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                  \t\t\t\t">0 &#40;0&#41;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t">1 &#40;4&#41;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
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                  \t\t\t\t">1 &#40;4&#41;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t">2 &#40;8&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Achromobacter xylosoxidans</span>&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t\ttable-entry\n
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                  \t\t\t\t\ttop\n
                  \t\t\t\t">0 &#40;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2 &#40;8&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Gram positivos&#44; n &#40;&#37;&#41;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t">7 &#40;28&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t">5 &#40;20&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Staphylococcus aureus meticil&#237;n-sensible</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t">3 &#40;12&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2 &#40;8&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Staphylococcus aureus meticil&#237;n-resistente</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 &#40;4&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 &#40;4&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Streptococcus pneumoniae</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 &#40;4&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0 &#40;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Streptococcus constellatus</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 &#40;4&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0 &#40;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Enterococcus faecalis</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 &#40;4&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 &#40;4&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Enterococcus faecium</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0 &#40;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 &#40;4&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Virus&#44; n &#40;&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">5 &#40;20&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">3 &#40;12&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Virus herpes simple tipo 1</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">3 &#40;12&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">3 &#40;12&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Citomegalovirus</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2 &#40;8&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0 &#40;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Hongos&#44; n &#40;&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 &#40;4&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">4 &#40;16&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Aspergillus fumigatus</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 &#40;4&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 &#40;4&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Aspergillus flavus</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0 &#40;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2 &#40;8&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Aspergillus niger</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0 &#40;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 &#40;4&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " colspan="3" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleVsp" style="height:0.5px"></span></td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " colspan="3" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleBold">TAV</span></td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Gramnegativos&#44; n &#40;&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">7 &#40;70&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">9 &#40;69&#44;2&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Escherichia coli</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0 &#40;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">3 &#40;23&#44;1&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Enterobacter</span> spp&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0 &#40;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 &#40;7&#44;8&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Haemophilus influenzae</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2 &#40;20&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0 &#40;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Serratia marcescens</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0 &#40;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2 &#40;15&#44;4&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Stenotrophomonas maltophilia</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 &#40;10&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0 &#40;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Pseudomonas aereuginosa</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">3 &#40;30&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">3 &#40;23&#44;1&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Proteus mirabillis</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 &#40;10&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0 &#40;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Grampositivos&#44; n &#40;&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2 &#40;20&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">4 &#40;30&#44;7&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
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Original
La humidificación activa en ventilación mecánica no se asocia con un aumento de complicaciones infecciosas respiratorias en un estudio cuasi-experimental pre-postintervención
Active humidification in mechanical ventilation is not associated to an increase in respiratory infectious complications in a quasi-experimental pre-post intervention study
L. Picazoa,b, M.P. Gracia Arnillasa,b, R. Muñoz-Bermúdeza,b, X. Duránb, F. Álvarez Lermaa,b,c, J.R. Masclansa,b,c,
Autor para correspondencia
jrmasclans@psmar.cat

Autor para correspondencia.
a Servicio de Medicina Intensiva, Hospital del Mar, Barcelona, España
b Instituto Hospital del Mar de Investigaciones Médicas (IMIM), Barcelona, España
c Universitat Autònoma de Barcelona (UAB), Barcelona, España
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HA 44<span class="elsevierStyleHsp" style=""></span>mg H<span class="elsevierStyleInf">2</span>O&#47;l y HR 100&#37;&#41; y son transportados por la tubuladura inspiratoria hacia el paciente&#46; Habitualmente se emplean tubuladuras dotadas de un alambre calentador que impide la condensaci&#243;n del vapor de agua al disminuir la temperatura en el trayecto del calentador al paciente<a class="elsevierStyleCrossRef" href="#bib0170"><span class="elsevierStyleSup">3</span></a>&#46;</p><p id="par0020" class="elsevierStylePara elsevierViewall">Al instaurar la ventilaci&#243;n mec&#225;nica&#44; los mecanismos de defensa habituales&#44; como la tos y el aclaramiento mucociliar&#44; se encuentran disminuidos&#44; lo que aumenta considerablemente el riesgo de infecci&#243;n&#46; La neumon&#237;a asociada a la ventilaci&#243;n &#40;NAV&#41; constituye la principal causa de mortalidad debida a infecciones relacionadas con la atenci&#243;n hospitalaria&#44; sobre todo cuando es provocada por microorganismos multirresistentes&#46; Su diagn&#243;stico en ocasiones es impreciso&#44; lo que conduce a sobretratamiento antibi&#243;tico<a class="elsevierStyleCrossRefs" href="#bib0175"><span class="elsevierStyleSup">4&#8211;7</span></a>&#46;</p><p id="par0025" class="elsevierStylePara elsevierViewall">Existen controversias sobre cu&#225;l es el sistema de humidificaci&#243;n m&#225;s adecuado y sobre su influencia en la incidencia de la infecci&#243;n respiratoria asociada a la ventilaci&#243;n mec&#225;nica&#46; El objetivo principal de este estudio fue evaluar las diferencias en la incidencia de infecci&#243;n asociada a ventilaci&#243;n mec&#225;nica &#40;NAV y TAV&#41; entre paciente ventilados con humidificaci&#243;n pasiva y activa&#44; una vez instauradas todas las medidas preventivas de la infecci&#243;n asociada a la ventilaci&#243;n incluidas en el Programa Neumon&#237;a Zero&#46;</p></span><span id="sec0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0110">Pacientes y m&#233;todo</span><p id="par0030" class="elsevierStylePara elsevierViewall">Se realiz&#243; un estudio de cohortes retrospectivo unic&#233;ntrico cuasi-experimental de tipo pre-postintervenci&#243;n&#44; durante los meses de enero a diciembre del a&#241;o 2014 y de enero a diciembre del a&#241;o 2016&#44; en el Servicio de Medicina Intensiva de un hospital univesitario de tercer nivel de 14 camas con atenci&#243;n a pacientes m&#233;dicos&#44; traum&#225;ticos y quir&#250;rgicos&#44; con un 52&#37; de pacientes en VM y un Apache-II medio de 17&#44;5 puntos&#46; Se incluyeron de manera consecutiva todos los pacientes conectados a la ventilaci&#243;n mec&#225;nica invasiva &#40;VMI&#41; durante m&#225;s de 48<span class="elsevierStyleHsp" style=""></span>horas&#46; Se excluyeron a los pacientes menores de 18 a&#241;os&#46; Los pacientes recibieron humidificaci&#243;n desde el momento de la intubaci&#243;n&#46;</p><p id="par0035" class="elsevierStylePara elsevierViewall">Durante el a&#241;o 2014 se emple&#243; humidificaci&#243;n pasiva con intercambiadores calor-humedad higrosc&#243;picos con filtro antibacteriano &#40;modelo <span class="elsevierStyleItalic">EdithFlex</span> de la marca <span class="elsevierStyleItalic">AirlifeTM&#174;</span>&#41; en todos los pacientes ventilados&#44; que seg&#250;n la casa comercial&#44; proporciona una HA de entre 32&#44;5 y 33&#44;5 cmH<span class="elsevierStyleInf">2</span>O&#47;l&#44; a&#241;adiendo un volumen de espacio muerto de 90<span class="elsevierStyleHsp" style=""></span>ml&#46; Los dispositivos HME se recambiaron cada 72<span class="elsevierStyleHsp" style=""></span>horas seg&#250;n protocolo&#44; pudiendo ser recambiados antes si se observaba contaminaci&#243;n del filtro por secreciones respiratorias o m&#237;nima condensaci&#243;n que causara aumento en las resistencias de la v&#237;a a&#233;rea&#46;</p><p id="par0040" class="elsevierStylePara elsevierViewall">Durante el a&#241;o 2016 todos los pacientes fueron tratados mediante humidificaci&#243;n activa con una c&#225;mara de llenado autom&#225;tico &#40;Fisher&#38;Paykel<span class="elsevierStyleItalic">&#174;</span> MR850&#41;&#44; con alambre calentador de la tubuladura inspiratoria&#44; a una temperatura de 37<span class="elsevierStyleHsp" style=""></span>&#176;C &#40;HA 44<span class="elsevierStyleHsp" style=""></span>mgH<span class="elsevierStyleInf">2</span>O&#47;l&#44; HR 100&#37;&#41;&#46; El circuito se recambi&#243; cada 21 d&#237;as en caso de VMI prolongada&#46;</p><p id="par0045" class="elsevierStylePara elsevierViewall">Los pacientes ventilados mec&#225;nicamente durante el a&#241;o 2015 no fueron incluidos&#44; al tratarse de un periodo de cambio en la estrategia de humidificaci&#243;n debido a la implantaci&#243;n del uso de humidificaci&#243;n activa en los pacientes conectados a la VMI&#46;</p><p id="par0050" class="elsevierStylePara elsevierViewall">En ambos periodos del estudio se establecieron las mismas medidas para la prevenci&#243;n de la NAV en el marco de participaci&#243;n en el Proyecto Nacional Neumon&#237;a Zero&#58; educaci&#243;n y entrenamiento del personal sanitario en el manejo de la v&#237;a a&#233;rea &#40;aspiraci&#243;n de secreciones bronquiales&#41;&#44; higiene de manos estricta con soluciones alcoh&#243;licas cuando se manipula la v&#237;a a&#233;rea&#44; higiene oral con soluci&#243;n de clorhexidina &#40;0&#44;12&#37;&#41;&#44; control y mantenimiento de la presi&#243;n del neumotaponamiento&#44; posici&#243;n semiincorporada&#44; promover procedimientos y protocolos que reducen el tiempo de ventilaci&#243;n &#40;protocolos de <span class="elsevierStyleItalic">weaning</span> y de sedaci&#243;n&#41;&#44; evitar el cambio programado del circuito del ventilador&#44; humidificadores y tubos endotraqueales&#44; descontaminaci&#243;n selectiva de la orofaringe &#40;soluci&#243;n de tobramicina&#44; colistina y nistatina&#41; y empleo de tubos endotraqueales con sistema de aspiraci&#243;n continua de secreciones subgl&#243;ticas<a class="elsevierStyleCrossRef" href="#bib0195"><span class="elsevierStyleSup">8</span></a>&#46;</p><p id="par0055" class="elsevierStylePara elsevierViewall">Se recogieron las siguientes variables&#58; edad&#44; sexo&#44; factores de riesgo de neumon&#237;a asociada a la ventilaci&#243;n &#40;infecci&#243;n por virus de la inmunodeficiencia humana &#91;VIH&#93;&#44; enfermedad renal cr&#243;nica &#91;ERC&#93;&#44; enfermedad pulmonar obstructiva cr&#243;nica &#91;EPOC&#93;&#44; diabetes mellitus &#91;DM&#93;&#44; trasplante&#44; neoplasia activa&#44; neutropenia&#44; cirrosis hep&#225;tica&#41;&#44; escala APACHE-II al ingreso&#44; d&#237;as de ventilaci&#243;n mec&#225;nica invasiva&#44; tipo de humidificaci&#243;n empleada&#44; antibioterapia previa &#40;definida como utilizaci&#243;n de antibi&#243;ticos por v&#237;a parenteral en las 24<span class="elsevierStyleHsp" style=""></span>horas previas al inicio de la VMI&#41;&#44; incidencia de NAV y TAV&#44; d&#237;as hasta el desarrollo de la neumon&#237;a&#44; tipo de muestra microbiol&#243;gica extra&#237;da &#40;broncoaspirado&#44; lavado broncoalveolar&#44; cat&#233;ter telescopado&#41;&#44; resultado de los cultivos cuantitativos&#44; d&#237;as de estancia en UCI y estado al alta de UCI y al alta hospitalaria &#40;vivo&#44; exitus&#41;&#46; Los datos fueron obtenidos retrospectivamente del sistema inform&#225;tico de gesti&#243;n cl&#237;nica de nuestro centro &#40;IMASIS&#41;&#46; Dos cl&#237;nicos revisaron de forma independiente todos los pacientes ventilados mec&#225;nicamente durante el periodo de estudio y reevaluaron conjuntamente el diagn&#243;stico de NAV y TAV&#46; En caso de discordancia de opiniones&#44; un tercer cl&#237;nico actu&#243; como revisor de desempate&#46;</p><p id="par0060" class="elsevierStylePara elsevierViewall">El diagn&#243;stico de NAV se realiz&#243; seg&#250;n los criterios establecidos por la ECDC y para la TAV los establecidos por la CDC<a class="elsevierStyleCrossRef" href="#bib0200"><span class="elsevierStyleSup">9</span></a>&#46; Se emplearon criterios cl&#237;nicos &#40;fiebre&#44; leucocitosis o leucopenia&#44; secreciones purulentas&#44; auscultaci&#243;n respiratoria&#44; tos&#44; disnea o taquipnea y deterioro progresivo del intercambio gaseoso&#41;&#44; radiol&#243;gicos &#40;nueva imagen sugestiva de neumon&#237;a en la radiograf&#237;a de t&#243;rax o TAC tor&#225;cica&#41; y microbiol&#243;gicos &#40;cultivos cuantitativos de broncoaspirado&#44; lavado broncoalveolar o cat&#233;ter telescopado&#41;&#46; Se consider&#243; NAV precoz aquella desarrollada en &#8804;<span class="elsevierStyleHsp" style=""></span>7 d&#237;as del inicio de la VMI&#46;</p><span id="sec0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0115">An&#225;lisis estad&#237;stico</span><p id="par0065" class="elsevierStylePara elsevierViewall">Para el an&#225;lisis estad&#237;stico inicial&#44; las variables cuantitativas fueron expresadas mediante la mediana y los cuartiles &#40;P<span class="elsevierStyleInf">25</span> y P<span class="elsevierStyleInf">75</span>&#41;&#46; Las variables categ&#243;ricas se describieron mediante tabla de frecuencias &#40;n&#250;mero y porcentaje&#41;&#46;</p><p id="par0070" class="elsevierStylePara elsevierViewall">Se evaluaron posibles diferencias entre los grupos de humidificaci&#243;n activa y pasiva mediante test Chi-cuadrado para las variables categ&#243;ricas &#40;o el test exacto de Fisher seg&#250;n correspondiere&#41; y el test no param&#233;trico de Mann-Whitney para las variables continuas&#46; Esos mismos test se utilizaron en el an&#225;lisis bivariado para la valoraci&#243;n de posibles factores asociados a NAV y TAV&#46; Asimismo&#44; se realiz&#243; un an&#225;lisis multivariado de los <span class="elsevierStyleItalic">outcomes</span> NAV y TAV&#44; teniendo como factor principal el grupo de humidificaci&#243;n y ajustando por posibles factores de confusi&#243;n&#44; escogiendo aquellas variables para las cuales se encontraron diferencias significativas en la comparaci&#243;n entre los grupos de humidificaci&#243;n activa y pasiva&#46;</p><p id="par0075" class="elsevierStylePara elsevierViewall">Se estimaron tasas de incidencia NAV y TAV por 1&#46;000 d&#237;as de VMI en ambos grupos&#44; as&#237; como de NAV precoz y tard&#237;a&#44; y se valoraron diferencias estad&#237;sticamente significativas mediante regresi&#243;n Poisson contrastando la hip&#243;tesis de raz&#243;n de tasas<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>1&#46; Finalmente&#44; se valoraron posibles diferencias entre grupos en la mortalidad intra-UCI&#46; Para ello se dibujaron las curvas de supervivencia y se aplic&#243; en test de log-rank&#46;</p><p id="par0080" class="elsevierStylePara elsevierViewall">Para el an&#225;lisis estad&#237;stico se utiliz&#243; el programa STATA versi&#243;n 15&#46;1 &#40;StataCorp&#44; College Station&#44; TX&#44; EE&#46; UU&#46;&#41;&#46; Se obtuvo la aprobaci&#243;n del CEIC 2018 del Hospital del Mar&#46;</p></span></span><span id="sec0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0120">Resultados</span><p id="par0085" class="elsevierStylePara elsevierViewall">Se analizaron 287 pacientes de los cuales 116 recibieron humidificaci&#243;n pasiva y 171 humidificaci&#243;n activa&#46; Las caracter&#237;sticas basales de los pacientes se muestran en la <a class="elsevierStyleCrossRef" href="#tbl0005">tabla 1</a>&#46; Los pacientes de ambos grupos presentaban caracter&#237;sticas similares en cuanto a edad&#44; sexo&#44; escala APACHE-II&#44; historia de diabetes mellitus&#44; enfermedad pulmonar obstructiva cr&#243;nica&#44; enfermedad renal cr&#243;nica&#44; infecci&#243;n por el virus de la inmunodeficiencia humana&#44; trasplante o neoplasia activa&#44; d&#237;as de ventilaci&#243;n mec&#225;nica y d&#237;as de estancia en UCI&#46; Se encontraron diferencias significativas en la prevalencia del diagn&#243;stico de neoplasia activa y en la tasa de antibioterapia previa&#44; definida como el inicio de tratamiento antibi&#243;tico en las 24<span class="elsevierStyleHsp" style=""></span>horas previas al inicio de la ventilaci&#243;n mec&#225;nica invasiva&#44; siendo ambos par&#225;metros superiores en el grupo de HME&#46;</p><elsevierMultimedia ident="tbl0005"></elsevierMultimedia><p id="par0090" class="elsevierStylePara elsevierViewall">En la <a class="elsevierStyleCrossRef" href="#tbl0010">tabla 2</a> se muestra la densidad de incidencia de NAV y TAV seg&#250;n tipo de humidificador&#46; En el an&#225;lisis de regresi&#243;n log&#237;stica se identific&#243; como &#250;nico factor de riesgo para el desarrollo de infecci&#243;n asociada a la ventilaci&#243;n mec&#225;nica la duraci&#243;n de la VMI &#40;OR 1&#44;07 &#91;IC 95&#37;&#58; 1&#44;02-1&#44;1&#93;&#59; p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#44;007&#41;&#46; La antibioterapia previa&#44; aunque tampoco aument&#243; el riesgo de desarrollar NAV&#44; s&#237; present&#243; una tendencia a su incremento&#46; No se identific&#243; ning&#250;n factor de riesgo asociado con el desarrollo de TAV &#40;<a class="elsevierStyleCrossRef" href="#tbl0015">tabla 3</a>&#41;&#46;</p><elsevierMultimedia ident="tbl0010"></elsevierMultimedia><elsevierMultimedia ident="tbl0015"></elsevierMultimedia><p id="par0095" class="elsevierStylePara elsevierViewall">La tasa de mortalidad intra-UCI de la muestra fue del 31&#44;6&#37;&#44; sin encontrar diferencias significativas entre la cohorte que emple&#243; humidificaci&#243;n pasiva y activa &#40;36&#44;2&#37; y 28&#44;2&#37; respectivamente&#59; p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#44;628&#41;&#46; En la <a class="elsevierStyleCrossRef" href="#fig0005">figura 1</a> se muestra el an&#225;lisis de supervivencia intra-UCI &#40;curvas de Kaplan-Meier&#41;&#46;</p><elsevierMultimedia ident="fig0005"></elsevierMultimedia><p id="par0100" class="elsevierStylePara elsevierViewall">A nivel microbiol&#243;gico los microorganismos m&#225;s frecuentes en ambos grupos fueron los bacilos gramnegativos&#44; <span class="elsevierStyleCrossOut">s</span>eguidos de los grampositivos&#44; virus y hongos&#44; tanto en los casos de NAV como de TAV&#46; En 3 &#40;20&#37;&#41; casos de ventilaci&#243;n con HME y en 5 &#40;31&#44;2&#37;&#41; casos de NAV se aisl&#243; <span class="elsevierStyleItalic">Candida albicans</span> en las muestras respiratorias&#44; interpretado como colonizaci&#243;n&#46; En la <a class="elsevierStyleCrossRef" href="#tbl0020">tabla 4</a> se describen los microorganismos aislados&#46;</p><elsevierMultimedia ident="tbl0020"></elsevierMultimedia></span><span id="sec0025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0125">Discusi&#243;n</span><p id="par0105" class="elsevierStylePara elsevierViewall">Este estudio compara la influencia del tipo de humidificaci&#243;n empleada en la incidencia de NAV y TAV una vez instauradas todas las medidas incluidas en el Proyecto Nacional Neumon&#237;a Zero&#46; Ning&#250;n estudio previo ha evaluado su impacto en la incidencia de TAV&#46; La mayor&#237;a de estudios publicados datan de antes del a&#241;o 2006&#44; pocos son los estudios que posteriormente se han realizado y ninguno de ellos en el contexto de un programa de prevenci&#243;n&#46; La evidencia m&#225;s actual se basa en los metaan&#225;lisis publicados&#44; que recogen estudios de hace m&#225;s de 10 a&#241;os que pueden no reflejar la situaci&#243;n actual tras las mejoras aplicadas en este campo y&#44; adem&#225;s&#44; se trata de estudios de baja calidad altamente heterog&#233;neos en cuanto a los criterios utilizados en cuanto a la definici&#243;n de neumon&#237;a se refiere<a class="elsevierStyleCrossRefs" href="#bib0205"><span class="elsevierStyleSup">10&#8211;14</span></a>&#46;</p><p id="par0110" class="elsevierStylePara elsevierViewall">La NAV era la causa m&#225;s frecuente de infecci&#243;n nosocomial en las UCI nacionales hasta la implantaci&#243;n del Proyecto Neumon&#237;a Zero<a class="elsevierStyleCrossRef" href="#bib0230"><span class="elsevierStyleSup">15</span></a>&#46; Su importante impacto en la morbimortalidad&#44; con un aumento asociado de estancia hospitalaria en una media de 7 a 9 d&#237;as por paciente y mortalidad atribuible entre el 33&#37; y el 50&#37;<a class="elsevierStyleCrossRef" href="#bib0235"><span class="elsevierStyleSup">16</span></a>&#44; justifica el inter&#233;s continuo en el conocimiento de los factores que pueden influir en su fisiopatogenia y en la b&#250;squeda de estrategias para su prevenci&#243;n&#46; La TAV es un diagn&#243;stico intermedio entre colonizaci&#243;n traqueobronquial y la NAV y&#44; aunque la bibliograf&#237;a actualmente es contradictoria&#44; est&#225; por determinar si se puede considerar como un paso evolutivo a NAV<a class="elsevierStyleCrossRef" href="#bib0240"><span class="elsevierStyleSup">17</span></a>&#46;</p><p id="par0115" class="elsevierStylePara elsevierViewall">Debido a la discordancia en las conclusiones de los estudios publicados&#44; las gu&#237;as y recomendaciones de las diferentes sociedades cient&#237;ficas&#44; basadas en la evidencia disponible&#44; no recomiendan qu&#233; tipo de humidificaci&#243;n es preferible para prevenir la NAV<a class="elsevierStyleCrossRefs" href="#bib0195"><span class="elsevierStyleSup">8&#44;18</span></a>&#46; La humidificaci&#243;n pasiva presenta menor rendimiento en t&#233;rminos de calor y humedad respecto a la humidificaci&#243;n activa<a class="elsevierStyleCrossRef" href="#bib0245"><span class="elsevierStyleSup">18</span></a>&#46; Una de las principales desventajas de los HME es el incremento del espacio muerto que depende principalmente del volumen interno del filtro&#44; lo que podr&#237;a suponer una carga dif&#237;cil de tolerar en pacientes con baja reserva ventilatoria&#44; especialmente relevante cuando la enfermedad obliga a implementar estrategias de ventilaci&#243;n protectora<a class="elsevierStyleCrossRefs" href="#bib0250"><span class="elsevierStyleSup">19&#8211;24</span></a>&#46; La mayor resistencia que pueden aportar los HME&#44; aunque en ocasiones considerada despreciable&#44; podr&#237;a no ser as&#237; en el caso de acumulaci&#243;n de l&#237;quido por condensaci&#243;n o impactaci&#243;n de secreciones&#46; Por otra parte&#44; con el uso de los HH se ha descrito riesgo de lesi&#243;n de la v&#237;a a&#233;rea por temperatura excesiva&#44; limitaci&#243;n al flujo de aire por condensaci&#243;n en las tubuladuras&#44; aparici&#243;n de asincron&#237;as y posible colonizaci&#243;n del circuito<a class="elsevierStyleCrossRefs" href="#bib0170"><span class="elsevierStyleSup">3&#44;25&#44;26</span></a>&#46;</p><p id="par0120" class="elsevierStylePara elsevierViewall">El proyecto Neumon&#237;a Zero se inici&#243; en 2011 en 181<span class="elsevierStyleHsp" style=""></span>UCI del territorio espa&#241;ol&#46; Con la implementaci&#243;n de las medidas incluidas se objetiv&#243; una reducci&#243;n superior al 50&#37; en la densidad de incidencia nacional de NAV &#40;desde 9&#44;83 a 4&#44;34&#47;1&#46;000 d&#237;as de VMI&#41; tras 19-21 meses desde el inicio del proyecto&#46; Dichos resultados se mantuvieron constantes en los a&#241;os siguientes&#44; lo que indica que las recomendaciones han sido incorporadas en la pr&#225;ctica diaria habitual de nuestras UCI<a class="elsevierStyleCrossRef" href="#bib0290"><span class="elsevierStyleSup">27</span></a>&#46; Seg&#250;n el informe anual del registro ENVIN-HELICS &#40;Estudio nacional de infecci&#243;n nosocomial en las unidades de cuidados intensivos&#41;&#44; la densidad de incidencia de NAV en 2014 fue de 6&#44;31&#47;1&#46;000 d&#237;as de VMI y de 6&#44;26&#47;1&#46;000 d&#237;as de VMI en 2016<a class="elsevierStyleCrossRef" href="#bib0295"><span class="elsevierStyleSup">28</span></a>&#46; En nuestro estudio la densidad de incidencia para NAV durante el mismo periodo de tiempo se encuentra por debajo de dichos resultados&#44; y se asemeja m&#225;s a los resultados registrados por el registro Envin-Helics a nivel nacional en 2018 &#40;5&#44;87&#47;1&#46;000 d&#237;as de VMI&#41;<a class="elsevierStyleCrossRef" href="#bib0295"><span class="elsevierStyleSup">28</span></a>&#46; As&#237; mismo se encuentra por debajo del est&#225;ndar de 7 episodios por 1&#46;000 d&#237;as de VMI recomendado en el a&#241;o 2017 en los indicadores de calidad de la Sociedad Espa&#241;ola de Medicina Intensiva&#44; Cr&#237;tica y Unidades Coronarias<a class="elsevierStyleCrossRef" href="#bib0310"><span class="elsevierStyleSup">29</span></a>&#46; Esto sugiere que nuestro grupo se encuentra altamente sensibilizado y que presenta una amplia experiencia en el control de la infecci&#243;n nosocomial en el paciente cr&#237;tico&#46; Por ello hemos querido evaluar&#44; en este contexto&#44; el posible impacto de 2 sistemas de humidificaci&#243;n en la incidencia no solo de NAV&#44; sino tambi&#233;n de TAV&#44; sin encontrar diferencias en su densidad de incidencia&#44; lo que confirma la seguridad de la humidificaci&#243;n activa en este &#225;mbito&#46;</p><p id="par0125" class="elsevierStylePara elsevierViewall">En nuestros resultados destaca un mayor n&#250;mero de aislamientos de <span class="elsevierStyleItalic">Aspergillus</span> como causa de neumon&#237;a en el grupo de HH&#58; 4 aislamientos en 3 pacientes del grupo HH y un aislamiento en un paciente del grupo HME&#44; sin poder extraer conclusiones al respecto debido al peque&#241;o tama&#241;o de la muestra&#46; Asimismo se aisl&#243; <span class="elsevierStyleItalic">Candida albicans</span> en 3 pacientes del grupo HME y 5 pacientes del grupo HH&#44; considerado como colonizaci&#243;n en todos los casos&#46; Dicho aumento de aislamiento de hongos en los pacientes portadores de HH en nuestro estudio debe ser interpretado con cautela&#44; y hacen falta estudios de calidad que certifiquen nuestros hallazgos&#46;</p><p id="par0130" class="elsevierStylePara elsevierViewall">El presente estudio tiene varias limitaciones&#46; En primer lugar&#44; el car&#225;cter cuasiexperimental&#44; retrospectivo y unic&#233;ntrico de nuestro estudio conlleva l&#243;gicos problemas de validez externa&#46; Adem&#225;s&#44; el tama&#241;o muestral no es grande&#44; si bien se asemeja al de estudios similares publicados previamente&#46; En segundo lugar&#44; la prevalencia de neoplasia activa y de antibioterapia parenteral previa a la intubaci&#243;n era significativamente mayor en el grupo de HME&#44; lo cual puede haber influenciado nuestros resultados&#46; No obstante&#44; ninguno de los 2 par&#225;metros fue identificado como factor de riesgo para NAV y TAV en el an&#225;lisis de regresi&#243;n log&#237;stica&#46; En tercer lugar&#44; el diagn&#243;stico de NAV&#44; si bien se realiz&#243; seg&#250;n los criterios del CDC&#44; no se llev&#243; a cabo mediante un procedimiento invasivo para todos los pacientes&#46; Sin embargo&#44; se emplearon cultivos cuantitativos de muestras como broncoaspirado&#44; lavado broncoalveolar o cat&#233;ter telescopado en todos los casos&#46; Por &#250;ltimo&#44; destaca la baja tasa de densidad de incidencia de TAV encontrada en nuestra serie&#44; probablemente relacionada con las dificultades para su diagn&#243;stico cl&#237;nico&#44; pudiendo pasar desapercibida en ocasiones y pudiendo ser confundida con la NAV ante la presencia de infiltrados radiol&#243;gicos de otras causas&#46; No obstante&#44; se intent&#243; disminuir dicho sesgo mediante la revisi&#243;n de cada caso por separado por 2 cl&#237;nicos diferentes&#44; e incluyendo la evaluaci&#243;n por un tercer cl&#237;nico como revisor de desempate en caso de discordancia en la recogida de datos&#46;</p><p id="par0135" class="elsevierStylePara elsevierViewall">Nuestros datos sugieren que no existen diferencias entre los HME y los HH respecto a la incidencia de NAV ni TAV una vez implementado un paquete de medidas de prevenci&#243;n de NAV&#46; Sin embargo&#44; se necesitan estudios prospectivos de calidad que comparen los diferentes tipos de HME y HH con la finalidad de poder sacar conclusiones m&#225;s firmes y &#250;tiles en la pr&#225;ctica cl&#237;nica diaria&#46;</p></span><span id="sec0030" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0130">Autor&#237;a</span><p id="par0140" class="elsevierStylePara elsevierViewall"><ul class="elsevierStyleList" id="lis0005"><li class="elsevierStyleListItem" id="lsti0005"><span class="elsevierStyleLabel">&#8226;</span><p id="par0145" class="elsevierStylePara elsevierViewall">Luc&#237;a Picazo Moreno&#58; dise&#241;o del estudio&#44; adquisici&#243;n de datos y redacci&#243;n del borrador del art&#237;culo&#46;</p></li><li class="elsevierStyleListItem" id="lsti0010"><span class="elsevierStyleLabel">&#8226;</span><p id="par0150" class="elsevierStylePara elsevierViewall">M&#46; Pilar Gracia Arnillas&#58; dise&#241;o del estudio&#44; interpretaci&#243;n de datos recogidos&#44; revisi&#243;n cr&#237;tica del contenido intelectural y aprobaci&#243;n definitiva de la versi&#243;n que se presenta&#46;</p></li><li class="elsevierStyleListItem" id="lsti0015"><span class="elsevierStyleLabel">&#8226;</span><p id="par0155" class="elsevierStylePara elsevierViewall">Rosana Mu&#241;oz-Berm&#250;dez&#58; an&#225;lisis de los datos recogidos&#44; revisi&#243;n cr&#237;tica del contenido intelectual&#44; aprobaci&#243;n definitiva de la versi&#243;n que se presenta&#46;</p></li><li class="elsevierStyleListItem" id="lsti0020"><span class="elsevierStyleLabel">&#8226;</span><p id="par0160" class="elsevierStylePara elsevierViewall">Xavier Dur&#225;n&#58; an&#225;lisis de los datos recogidos&#44; revisi&#243;n cr&#237;tica del contenido intelectual&#44; aprobaci&#243;n definitiva de la versi&#243;n que se presenta&#46;</p></li><li class="elsevierStyleListItem" id="lsti0025"><span class="elsevierStyleLabel">&#8226;</span><p id="par0165" class="elsevierStylePara elsevierViewall">Francisco &#193;lvarez Lerma&#58; interpretaci&#243;n de los datos recogidos&#44; revisi&#243;n cr&#237;tica del contenido intelectual y aprobaci&#243;n definitiva de la versi&#243;n que se presenta&#46;</p></li><li class="elsevierStyleListItem" id="lsti0030"><span class="elsevierStyleLabel">&#8226;</span><p id="par0170" class="elsevierStylePara elsevierViewall">Joan-Ram&#243;n Masclans&#58; concepci&#243;n y dise&#241;o del estudio&#44; an&#225;lisis e interpretaci&#243;n de los datos obtenidos&#44; revisi&#243;n cr&#237;tica del contenido intelectual y aprobaci&#243;n definitiva de la versi&#243;n que se presenta&#46;</p></li></ul></p></span><span id="sec0035" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0135">Conflictos de intereses</span><p id="par0175" class="elsevierStylePara elsevierViewall">El grupo de investigaci&#243;n en el IMIM del Servicio de Medicina Intensiva del Hospital del Mar recibe apoyos a la investigaci&#243;n por parte de Fisher &#38; Paykel&#46;</p></span></span>"
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        "resumen" => "<span id="abst0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0010">Objetivo</span><p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">Existen controversias sobre la influencia del sistema de humidificaci&#243;n en la incidencia de infecciones respiratorias asociadas a la ventilaci&#243;n mec&#225;nica invasiva &#40;VMI&#41;&#46; Nuestro objetivo fue evaluar las diferencias en la incidencia de neumon&#237;a y traqueobronquitis asociadas a la ventilaci&#243;n mec&#225;nica &#40;NAV y TAV respectivamente&#41; con humidificaci&#243;n pasiva y activa&#46;</p></span> <span id="abst0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0015">Dise&#241;o</span><p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">Estudio retrospectivo cuasi-experimental de tipo pre-postintervenci&#243;n&#46;</p></span> <span id="abst0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0020">&#193;mbito</span><p id="spar0015" class="elsevierStyleSimplePara elsevierViewall">UCI polivalente de 14 camas&#46;</p></span> <span id="abst0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0025">Pacientes</span><p id="spar0020" class="elsevierStyleSimplePara elsevierViewall">Se incluyeron todos los pacientes conectados a la VMI durante<span class="elsevierStyleHsp" style=""></span>&#62;<span class="elsevierStyleHsp" style=""></span>48<span class="elsevierStyleHsp" style=""></span>horas durante los a&#241;os 2014 y 2016&#46;</p></span> <span id="abst0025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0030">Intervenciones</span><p id="spar0025" class="elsevierStyleSimplePara elsevierViewall">Durante el a&#241;o 2014 se empleaba humidificaci&#243;n pasiva con un intercambiador calor-humedad &#40;HME&#41; y&#44; durante 2016&#44; humidificaci&#243;n activa &#40;HH&#41; con calentamiento de la tubuladura inspiratoria&#46; Se establecieron medidas id&#233;nticas para la prevenci&#243;n de NAV &#40;proyecto Neumon&#237;a Zero&#41;&#46;</p></span> <span id="abst0030" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0035">Variables de inter&#233;s principales</span><p id="spar0030" class="elsevierStyleSimplePara elsevierViewall">Se estimaron tasas de incidencia NAV y TAV por 1&#46;000 d&#237;as de VMI en ambos grupos y se valoraron diferencias estad&#237;sticamente significativas mediante regresi&#243;n Poisson&#46;</p></span> <span id="abst0035" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0040">Resultados</span><p id="spar0035" class="elsevierStyleSimplePara elsevierViewall">Se incluyeron 287 pacientes &#40;116 con HME y 171 con HH&#41;&#46; La densidad de incidencia de NAV por 1&#46;000 d&#237;as de VMI fue de 5&#44;68 en el grupo de HME y 5&#44;80 en el grupo de HH &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>ns&#41;&#46; La densidad de incidencia de TAV fue 3&#44;41 y 3&#44;26 casos por 1&#46;000 d&#237;as de VMI con HME y HH respectivamente &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>ns&#41;&#46; Se identific&#243; como factor de riesgo de NAV la duraci&#243;n de la VMI&#46;</p></span> <span id="abst0040" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0045">Conclusiones</span><p id="spar0040" class="elsevierStyleSimplePara elsevierViewall">En nuestro estudio la humidificaci&#243;n activa en pacientes ventilados durante<span class="elsevierStyleHsp" style=""></span>&#62;<span class="elsevierStyleHsp" style=""></span>48<span class="elsevierStyleHsp" style=""></span>horas no se asoci&#243; con un aumento de las complicaciones infecciosas respiratorias&#46;</p></span>"
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        "resumen" => "<span id="abst0045" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0055">Objective</span><p id="spar0045" class="elsevierStyleSimplePara elsevierViewall">There is controversy regarding the influence of humidification systems upon the incidence of respiratory infections associated to invasive mechanical ventilation &#40;IMV&#41;&#46; An evaluation was made of the differences in the incidence of pneumonia and tracheobronchitis associated to mechanical ventilation &#40;VAP and VAT&#44; respectively&#41; with passive and active humidification&#46;</p></span> <span id="abst0050" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0060">Design</span><p id="spar0050" class="elsevierStyleSimplePara elsevierViewall">A retrospective pre-post quasi-experimental study was carried out&#46;</p></span> <span id="abst0055" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0065">Setting</span><p id="spar0055" class="elsevierStyleSimplePara elsevierViewall">A polyvalent ICU with 14 beds&#46;</p></span> <span id="abst0060" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0070">Patients</span><p id="spar0060" class="elsevierStyleSimplePara elsevierViewall">All patients connected to IMV for<span class="elsevierStyleHsp" style=""></span>&#62;<span class="elsevierStyleHsp" style=""></span>48<span class="elsevierStyleHsp" style=""></span>hours during 2014 and 2016 were included&#46;</p></span> <span id="abst0065" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0075">Interventions</span><p id="spar0065" class="elsevierStyleSimplePara elsevierViewall">During 2014&#44; passive humidification with an hygroscopic heat and moisture exchanger &#40;HME&#41; was used&#44; while during 2016 active humidification with a heated humidifier &#40;HH&#41; and an inspiratory heated wire was used&#46; Identical measures for the prevention of VAP were established &#40;Zero Pneumonia Project&#41;&#46;</p></span> <span id="abst0070" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0080">Main outcome measures</span><p id="spar0070" class="elsevierStyleSimplePara elsevierViewall">The incidence of VAP and VAT was estimated for 1000 days of IMV in both groups&#44; and statistically significant differences were assessed using Poisson regression analysis&#46;</p></span> <span id="abst0075" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0085">Results</span><p id="spar0075" class="elsevierStyleSimplePara elsevierViewall">A total of 287 patients were included &#40;116 with HME and 171 with HH&#41;&#46; The incidence density of VAP per 1000 days of IMV was 5&#46;68 in the HME group and 5&#46;80 in the HH group &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>ns&#41;&#46; The incidence density of VAT was 3&#46;41 and 3&#46;26 cases per 1000 days of VMI with HME and HH respectively &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>ns&#41;&#46; The duration of IMV was identified as a risk factor for VAP&#46;</p></span> <span id="abst0080" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0090">Conclusions</span><p id="spar0080" class="elsevierStyleSimplePara elsevierViewall">In our population&#44; active humidification in patients ventilated for<span class="elsevierStyleHsp" style=""></span>&#62;<span class="elsevierStyleHsp" style=""></span>48<span class="elsevierStyleHsp" style=""></span>hours was not associated to an increase in respiratory infectious complications&#46;</p></span>"
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                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Grupo humidificaci&#243;n pasiva &#40;n<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>116&#41;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Total &#40;n<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>287&#41;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t"><span class="elsevierStyleItalic">Edad&#44; a&#241;os&#44; mediana &#91;p25-p75&#93;</span>&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t"><span class="elsevierStyleItalic">D&#237;as de VMI&#44; mediana &#91;p25-p75&#93;</span>&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t\ttable-entry\n
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                  \t\t\t\t">0&#44;77 &#40;0&#44;27-2-19&#41;&nbsp;\t\t\t\t\t\t\n
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                  """
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                  \t\t\t\t">1 &#40;4&#41;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t">1 &#40;4&#41;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
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                  \t\t\t\t">0 &#40;0&#41;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 &#40;4&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Citrobacter freundii</span>&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t\ttable-entry\n
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                  \t\t\t\t">1 &#40;4&#41;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t">0 &#40;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
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                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Acinetobacter baumannii</span>&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t\ttable-entry\n
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                  \t\t\t\t\ttop\n
                  \t\t\t\t">0 &#40;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 &#40;4&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
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                  \t\t\t\t">1 &#40;4&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2 &#40;8&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Achromobacter xylosoxidans</span>&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0 &#40;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2 &#40;8&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Gram positivos&#44; n &#40;&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">7 &#40;28&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t">5 &#40;20&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Staphylococcus aureus meticil&#237;n-sensible</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">3 &#40;12&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2 &#40;8&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Staphylococcus aureus meticil&#237;n-resistente</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 &#40;4&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 &#40;4&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Streptococcus pneumoniae</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 &#40;4&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0 &#40;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Streptococcus constellatus</span>&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 &#40;4&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0 &#40;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Enterococcus faecalis</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 &#40;4&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 &#40;4&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Enterococcus faecium</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0 &#40;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 &#40;4&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Virus&#44; n &#40;&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">5 &#40;20&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">3 &#40;12&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Virus herpes simple tipo 1</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">3 &#40;12&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">3 &#40;12&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Citomegalovirus</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2 &#40;8&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0 &#40;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Hongos&#44; n &#40;&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 &#40;4&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">4 &#40;16&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Aspergillus fumigatus</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 &#40;4&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 &#40;4&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Aspergillus flavus</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0 &#40;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2 &#40;8&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Aspergillus niger</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0 &#40;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 &#40;4&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " colspan="3" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleVsp" style="height:0.5px"></span></td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " colspan="3" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleBold">TAV</span></td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Gramnegativos&#44; n &#40;&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">7 &#40;70&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">9 &#40;69&#44;2&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Escherichia coli</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0 &#40;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">3 &#40;23&#44;1&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Enterobacter</span> spp&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0 &#40;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 &#40;7&#44;8&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Haemophilus influenzae</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2 &#40;20&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0 &#40;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Serratia marcescens</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0 &#40;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2 &#40;15&#44;4&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Stenotrophomonas maltophilia</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 &#40;10&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0 &#40;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Pseudomonas aereuginosa</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">3 &#40;30&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">3 &#40;23&#44;1&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Proteus mirabillis</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 &#40;10&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0 &#40;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Grampositivos&#44; n &#40;&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2 &#40;20&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">4 &#40;30&#44;7&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Staphylococcus aureus meticil&#237;n-sensible</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 &#40;10&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2 &#40;15&#44;4&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Streptococcus pneumoniae</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 &#40;10&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0 &#40;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">Streptococcus agalactiae</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0 &#40;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1 &#40;7&#44;8&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
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