Scientific Letter
High flow Tracheal oxygen: assessment of diaphragmatic functionality by ultrasonography in adults during weaning from mechanical ventilation
Alto flujo de oxígeno traqueal: evaluación de la funcionalidad diafragmática mediante ultrasonografía en adultos durante el proceso de destete de la ventilación mecánica
Ignacio Fernández Ceballosa,b,
, Ivan Alfredo Huespea, María Sofía Venutia, Bruno Leonel Ferreyroc, José María Diantid,e, Romina Famigliettia, Ana Montserrat Riveraa, Indalecio Carboni Bissoa, Marcos Jose Las Herasa
Autor para correspondencia
a Critical Care Department, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
b Critical Care Department, Hospital Italiano de San Justo Agustín Roca, Buenos Aires, Argentina
c Department of Medicine, Division of Respirology, Sinai Health System and University Health Network, Toronto, Canada
d Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Ontario, Canada
e Adult Intensive Care Unit, CEMIC, Buenos Aires, Argentina
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"etiqueta" => "<span class="elsevierStyleSup">a</span>" "identificador" => "aff0005" ] ] ] 6 => array:3 [ "nombre" => "Ana Montserrat" "apellidos" => "Rivera" "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">a</span>" "identificador" => "aff0005" ] ] ] 7 => array:3 [ "nombre" => "Indalecio" "apellidos" => "Carboni Bisso" "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">a</span>" "identificador" => "aff0005" ] ] ] 8 => array:3 [ "nombre" => "Marcos Jose" "apellidos" => "Las Heras" "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">a</span>" "identificador" => "aff0005" ] ] ] ] "afiliaciones" => array:5 [ 0 => array:3 [ "entidad" => "Critical Care Department, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina" "etiqueta" => "a" "identificador" => "aff0005" ] 1 => array:3 [ "entidad" => "Critical Care Department, Hospital Italiano de San Justo Agustín Roca, Buenos Aires, Argentina" "etiqueta" => "b" "identificador" => "aff0010" ] 2 => array:3 [ "entidad" => "Department of Medicine, Division of Respirology, Sinai Health System and University Health Network, Toronto, Canada" "etiqueta" => "c" "identificador" => "aff0015" ] 3 => array:3 [ "entidad" => "Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Ontario, Canada" "etiqueta" => "d" "identificador" => "aff0020" ] 4 => array:3 [ "entidad" => "Adult Intensive Care Unit, CEMIC, Buenos Aires, Argentina" "etiqueta" => "e" "identificador" => "aff0025" ] ] "correspondencia" => array:1 [ 0 => array:3 [ "identificador" => "cor0005" "etiqueta" => "⁎" "correspondencia" => "Corresponding author." ] ] ] ] "titulosAlternativos" => array:1 [ "es" => array:1 [ "titulo" => "Alto flujo de oxígeno traqueal: evaluación de la funcionalidad diafragmática mediante ultrasonografía en adultos durante el proceso de destete de la ventilación mecánica" ] ] "resumenGrafico" => array:2 [ "original" => 0 "multimedia" => array:8 [ "identificador" => "fig0005" "etiqueta" => "Figure 1" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr1.jpeg" "Alto" => 827 "Ancho" => 3342 "Tamanyo" => 121017 ] ] "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0005" "detalle" => "Figure " "rol" => "short" ] ] "descripcion" => array:1 [ "en" => "<p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">Flow chart of the study design.</p>" ] ] ] "textoCompleto" => "<span class="elsevierStyleSections"><p id="par0005" class="elsevierStylePara elsevierViewall">High-flow oxygen therapy via nasal cannula (HFNC) has demonstrated physiological benefits for patients with acute hypoxemic respiratory failure, including improvements in oxygenation, increased End Expiratory Lung Volume (EELV), and reduced work of breathing.<a class="elsevierStyleCrossRef" href="#bib0005"><span class="elsevierStyleSup">1</span></a> Recent investigations have explored the potential of HFNC to facilitate weaning from invasive mechanical ventilation (iMV) in tracheostomized patients. However, these studies primarily focused on evaluating diaphragm functionality solely at the end of spontaneous breathing, without observing dynamic changes in Work of Breathing (WOB) throughout the entire Spontaneous Breathing (SB) period.<a class="elsevierStyleCrossRefs" href="#bib0010"><span class="elsevierStyleSup">2–4</span></a> Therefore, we conducted a case series randomized crossover study to assess dynamic changes in inspiratory effort, measured using diaphragm ultrasound, from the initiation of SB to one hour thereafter. This study aims to evaluate the effects of High-Flow Tracheal Oxygen (HFT) versus Standard Oxygen Therapy (SOT) on inspiratory effort in tracheostomized patients during the weaning phase from iMV.</p><p id="par0010" class="elsevierStylePara elsevierViewall">We included tracheostomized adult patients who tolerated pressure support ventilation for at least two hours, in two tertiary university hospitals in Argentina. Exclusion criteria were neuromuscular diseases, pregnancy, and individuals unable to undergo ultrasound diaphragm measurements. Ethical approval for the study was granted by the Institutional Review Board (#5093). Following the acquisition of informed consent, enrolled patients were randomly allocated to receive either HFT or SOT first, with a respiratory muscles resting period for 2 h in pressure support (<a class="elsevierStyleCrossRef" href="#fig0005">Fig. 1</a>).</p><elsevierMultimedia ident="fig0005"></elsevierMultimedia><p id="par0015" class="elsevierStylePara elsevierViewall">The HFT strategy was administered with a flow of 60 L/min and a set temperature between 34 and 37 °C. The fraction of inspired oxygen was adjusted to achieve a SpO2 of 88% or higher. In the SOT strategy, a passive humidifier device was connected to the tracheostomy cannula. Oxygen was delivered at flow rates ranging from 2 to 15 l/min to maintain SpO2 at 88% or above.</p><p id="par0020" class="elsevierStylePara elsevierViewall">The inspiratory effort was estimated through ultrasound assessments conducted at 5 and 60 min after iMV disconnection. Each evaluation included ultrasound measurements of diaphragmatic thickening fraction (Tfdi), diaphragmatic excursion, and Lung Ultrasound Score (LUS) to estimate lung aeration<a class="elsevierStyleCrossRefs" href="#bib0025"><span class="elsevierStyleSup">5,6</span></a>).</p><p id="par0025" class="elsevierStylePara elsevierViewall">The primary outcome was to compare the change in Tfdi between 5 and 60 min after SB with HFT versus SOT. As a secondary outcome, we compared diaphragmatic excursion and pulmonary aeration between 5 and 60 min in both groups.</p><p id="par0030" class="elsevierStylePara elsevierViewall">Thirteen patients met the inclusion criteria, but three were excluded due to difficulty in obtaining ultrasound measurements. Ten patients completed the study, with a median age of 70 (IQR 64–75). Seventy percent were male (n = 7), with a median APACHE II score of 13 (IQR 10–17) and a median duration of iMV of 17 days (IQR 12–25) before inclusion. Baseline characteristics are provided in the Supplementary Material.</p><p id="par0035" class="elsevierStylePara elsevierViewall">For the SOT strategy, the median Tfdi was 25% (IQR 13 %–36 %) at 5 min and 26% (IQR 21 %–36 %) at 60 min. During the HFT strategy, the median Tfdi was 26% (IQR 20 %–36 %) at 5 min and 27% (IQR 20 %–33 %) at 60 min. Dynamic changes in Tfdi between 5 and 60 min in both strategies showed nonsignificant differences (p = 0.4).</p><p id="par0040" class="elsevierStylePara elsevierViewall">Diaphragmatic excursion in the SOT strategy at 5 min exhibited a median of 13 mm (IQR 11–15), increasing to 15 mm (IQR 11–22) at 60 min. In the HFT strategy, the median diaphragmatic excursion was 15 mm (IQR 13–22) at the beginning, decreasing to 14 mm (IQR 10–16) after 60 min. Dynamic changes in diaphragmatic excursion between 5 and 60 min in both strategies showed nonsignificant differences (p = 0.3).</p><p id="par0045" class="elsevierStylePara elsevierViewall">Regarding lung aeration, the LUS score for the SOT strategy was 10 (IQR 6–21) at 5 min and 10 (IQR 6–20) at 60 min. During HFT, the median LUS score was 8 (IQR 6–17) at 5 min and 9 (IQR 7–20) at 60 min. Dynamic changes in LUS score between 5 and 60 min in both strategies showed nonsignificant differences (p = 0.4). <a class="elsevierStyleCrossRef" href="#tbl0005">Table 1</a> describes ultrasound measures.</p><elsevierMultimedia ident="tbl0005"></elsevierMultimedia><p id="par0050" class="elsevierStylePara elsevierViewall">The application of HFT during the weaning phase from iMV did not significantly alter inspiratory effort, diaphragmatic excursion, or lung aeration compared to SOT. Previous studies assessing the impact of HFT on inspiratory effort similarly failed to demonstrate an improvement in diaphragm functionality.<a class="elsevierStyleCrossRefs" href="#bib0035"><span class="elsevierStyleSup">7,8</span></a> Improvements were limited to the SpO2/FIO2 ratio, a mild increase in positive end-expiratory pressure (PEEP), and a reduction in respiratory rate. These benefits appear to be flow-dependent, manifesting when applying flow rates exceeding 40 L/min.<a class="elsevierStyleCrossRef" href="#bib0045"><span class="elsevierStyleSup">9</span></a> The absence of substantial benefits with HFT may be attributed to several factors. Firstly, the direct entry of inspiratory flow into the trachea bypasses the oropharyngeal dead space, diminishing potential effects. Secondly, the absence of glottic closure with the tracheal tube eliminates a crucial factor in maintaining PEEP.<a class="elsevierStyleCrossRef" href="#bib0050"><span class="elsevierStyleSup">10</span></a> Lastly, the direction of inspiratory flow from the HFT tracheal device may not sufficiently increase expiratory resistances, resulting in a loss of the potential PEEP effect.</p><p id="par0055" class="elsevierStylePara elsevierViewall">Several limitations of this study include the small sample size, which reduces statistical power. Secondly, we did not evaluate blood gas analyses, as existing literature indicates that HFT could improve arterial partial pressure of oxygen without affecting pCO2(3) Finally, the lack of blinding among investigators could potentially introduce bias in ultrasound measurements in both modalities.</p><p id="par0060" class="elsevierStylePara elsevierViewall">The strength of this study lies in describing the temporal changes in diaphragmatic functionality over 60 min, contrasting with other studies that evaluated shorter periods.<a class="elsevierStyleCrossRef" href="#bib0040"><span class="elsevierStyleSup">8</span></a> This approach offers dynamic insights into both diaphragm functionality over time and its muscular tolerance during the weaning process from iMV, providing a comprehensive understanding of the diaphragmatic response throughout the entire duration, rather than at a specific moment.</p><p id="par0065" class="elsevierStylePara elsevierViewall">In our population, the application of HFT during the weaning phase of iMV did not generate significant changes in inspiratory effort, in comparison to SOT. However, this preliminary finding could inform future investigations evaluating the impact of HFT in tracheostomized patients with prolonged mechanical ventilation.</p><span id="sec0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0005">Author contribution</span><p id="par0070" class="elsevierStylePara elsevierViewall">Last name: Fernández Ceballos</p><p id="par0075" class="elsevierStylePara elsevierViewall">First name: Ignacio</p><p id="par0080" class="elsevierStylePara elsevierViewall">Author contribution: Literature search, data collection, study design, manuscript preparation.</p><p id="par0085" class="elsevierStylePara elsevierViewall">First name: Iván</p><p id="par0090" class="elsevierStylePara elsevierViewall">Last name: Huespe</p><p id="par0095" class="elsevierStylePara elsevierViewall">Author contribution: data analysis, manuscript preparation.</p><p id="par0100" class="elsevierStylePara elsevierViewall">Last name: Venuti</p><p id="par0105" class="elsevierStylePara elsevierViewall">First name: María</p><p id="par0110" class="elsevierStylePara elsevierViewall">Author contribution: Study design, data analysis.</p><p id="par0115" class="elsevierStylePara elsevierViewall">Last name: Ferreyro</p><p id="par0120" class="elsevierStylePara elsevierViewall">First name: Bruno</p><p id="par0125" class="elsevierStylePara elsevierViewall">Author contribution: Study design, manuscript preparation.</p><p id="par0130" class="elsevierStylePara elsevierViewall">Last name: Dianti</p><p id="par0135" class="elsevierStylePara elsevierViewall">First name: Jose</p><p id="par0140" class="elsevierStylePara elsevierViewall">Author contribution: Data analysis, writing.</p><p id="par0145" class="elsevierStylePara elsevierViewall">Last name: Famiglietti</p><p id="par0150" class="elsevierStylePara elsevierViewall">First name: Romina</p><p id="par0155" class="elsevierStylePara elsevierViewall">Author contribution: Literature search, data collection.</p><p id="par0160" class="elsevierStylePara elsevierViewall">Last name: Rivera</p><p id="par0165" class="elsevierStylePara elsevierViewall">First name: Ana</p><p id="par0170" class="elsevierStylePara elsevierViewall">Author contribution: data collection.</p><p id="par0175" class="elsevierStylePara elsevierViewall">First name: Indalecio</p><p id="par0180" class="elsevierStylePara elsevierViewall">Last name: Carboni Bisso</p><p id="par0185" class="elsevierStylePara elsevierViewall">Author contribution: data collection.</p><p id="par0190" class="elsevierStylePara elsevierViewall">First name: Marcos</p><p id="par0195" class="elsevierStylePara elsevierViewall">Last name: Las Heras</p><p id="par0200" class="elsevierStylePara elsevierViewall">Author contribution: Study design, review manuscript.</p><p id="par0205" class="elsevierStylePara elsevierViewall">All authors have reviewed and approved the final version of the article.</p></span></span>" "textoCompletoSecciones" => array:1 [ "secciones" => array:3 [ 0 => array:2 [ "identificador" => "sec0005" "titulo" => "Author contribution" ] 1 => array:2 [ "identificador" => "xack777279" "titulo" => "Acknowledgments" ] 2 => array:1 [ "titulo" => "References" ] ] ] "pdfFichero" => "main.pdf" "tienePdf" => true "apendice" => array:1 [ 0 => array:1 [ "seccion" => array:1 [ 0 => array:4 [ "apendice" => "<p id="par0230" class="elsevierStylePara elsevierViewall">The following is Supplementary data to this article:<elsevierMultimedia ident="upi0005"></elsevierMultimedia></p>" "etiqueta" => "Appendix A" "titulo" => "Supplementary data" "identificador" => "sec0015" ] ] ] ] "multimedia" => array:3 [ 0 => array:8 [ "identificador" => "fig0005" "etiqueta" => "Figure 1" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr1.jpeg" "Alto" => 827 "Ancho" => 3342 "Tamanyo" => 121017 ] ] "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0005" "detalle" => "Figure " "rol" => "short" ] ] "descripcion" => array:1 [ "en" => "<p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">Flow chart of the study design.</p>" ] ] 1 => array:8 [ "identificador" => "tbl0005" "etiqueta" => "Table 1" "tipo" => "MULTIMEDIATABLA" "mostrarFloat" => true "mostrarDisplay" => false "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0010" "detalle" => "Table " "rol" => "short" ] ] "tabla" => array:2 [ "leyenda" => "<p id="spar0015" class="elsevierStyleSimplePara elsevierViewall">HFT: High-Flow Tracheal Oxygen; SOT: Standard Oxygen Therapy; Tfdi: Diaphragmatic Thickening Fraction; LUS: Lung Ultrasound Score.</p>" "tablatextoimagen" => array:1 [ 0 => array:2 [ "tabla" => array:1 [ 0 => """ <table border="0" frame="\n \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="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col" style="border-bottom: 2px solid black"> \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">Initial measurement (5 min) \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">Final measurement (60 min) \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">Temporary changes (60−5 min) \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 " colspan="4" align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">HFT strategy</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>Diaphragm excursion mm (SD) \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">16.6 (7.02) \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">15.3 (7.44) \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">−1.38 (8.32) \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>Tfdi % (SD) \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">0.33 (0.25) \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">0.29 (0.12) \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">−0.04 (0.31) \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>LUS score (point) \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">10.8 (7.19) \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">12.6 (9.18) \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">−1.80 (2.97) \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 " colspan="4" align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">SOT strategy</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>Diaphragm excursion mm (SD) \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">14.6 (7.75) \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">16.5 (7.43) \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">1.89 (5.04) \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>Tfdi % (SD) \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">0.26 (0.14) \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">0.32 (0.18) \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">0.06 (0.12) \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>LUS score (point) \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">12.0 (8.08) \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">13.1 (9.64) \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 (4.16) \t\t\t\t\t\t\n \t\t\t\t</td></tr></tbody></table> """ ] "imagenFichero" => array:1 [ 0 => "xTab3670836.png" ] ] ] ] "descripcion" => array:1 [ "en" => "<p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">Ultrasound measured.</p>" ] ] 2 => array:5 [ "identificador" => "upi0005" "tipo" => "MULTIMEDIAECOMPONENTE" "mostrarFloat" => false "mostrarDisplay" => true "Ecomponente" => array:2 [ "fichero" => "mmc1.docx" "ficheroTamanyo" => 14221 ] ] ] "bibliografia" => array:2 [ "titulo" => "References" "seccion" => array:1 [ 0 => array:2 [ "identificador" => "bibs0005" "bibliografiaReferencia" => array:10 [ 0 => array:3 [ "identificador" => "bib0005" "etiqueta" => "1" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Physiologic effects of high-flow nasal cannula in acute hypoxemic respiratory failure" "autores" => array:1 [ 0 => array:2 [ "etal" => true "autores" => array:6 [ 0 => "T. Mauri" 1 => "C. Turrini" 2 => "N. Eronia" 3 => "G. Grasselli" 4 => "C.A. Volta" 5 => "G. Bellani" ] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1164/rccm.201605-0916OC" "Revista" => array:7 [ "tituloSerie" => "Am J Respir Crit Care Med." "fecha" => "2017" "volumen" => "195" "numero" => "9" "paginaInicial" => "1207" "paginaFinal" => "1215" "link" => array:1 [ 0 => array:2 [ "url" => "https://www.ncbi.nlm.nih.gov/pubmed/27997805" "web" => "Medline" ] ] ] ] ] ] ] ] 1 => array:3 [ "identificador" => "bib0010" "etiqueta" => "2" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "High-flow via a tracheostomy tube and speaking valve during weaning from mechanical ventilation and tracheostomy" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:5 [ 0 => "P.H. Egbers" 1 => "A.L. Sutt" 2 => "J.E. Petersson" 3 => "L. Bergström" 4 => "E. Sundman" ] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1111/aas.14305" "Revista" => array:7 [ "tituloSerie" => "Acta Anaesthesiol Scand." "fecha" => "2023" "volumen" => "67" "numero" => "10" "paginaInicial" => "1403" "paginaFinal" => "1413" "link" => array:1 [ 0 => array:2 [ "url" => "https://www.ncbi.nlm.nih.gov/pubmed/37437910" "web" => "Medline" ] ] ] ] ] ] ] ] 2 => array:3 [ "identificador" => "bib0015" "etiqueta" => "3" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "High-flow oxygen via tracheostomy improves oxygenation in patients weaning from mechanical ventilation: a randomised crossover study" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:6 [ 0 => "A. Corley" 1 => "M. Edwards" 2 => "A.J. Spooner" 3 => "K.R. Dunster" 4 => "C. Anstey" 5 => "J.F. Fraser" ] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1007/s00134-016-4634-7" "Revista" => array:7 [ "tituloSerie" => "Intensive Care Med." "fecha" => "2017" "volumen" => "43" "numero" => "3" "paginaInicial" => "465" "paginaFinal" => "467" "link" => array:1 [ 0 => array:2 [ "url" => "https://www.ncbi.nlm.nih.gov/pubmed/27904928" "web" => "Medline" ] ] ] ] ] ] ] ] 3 => array:3 [ "identificador" => "bib0020" "etiqueta" => "4" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "High-flow oxygen therapy via tracheostomy to liberate COVID-19-induced ARDS from invasive ventilation: a case series" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:3 [ 0 => "S. Vadi" 1 => "S. Phadtare" 2 => "K. Shetty" ] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.5005/jp-journals-10071-23858" "Revista" => array:7 [ "tituloSerie" => "Indian J Crit Care Med." "fecha" => "2021" "volumen" => "25" "numero" => "6" "paginaInicial" => "724" "paginaFinal" => "728" "link" => array:1 [ 0 => array:2 [ "url" => "https://www.ncbi.nlm.nih.gov/pubmed/34316157" "web" => "Medline" ] ] ] ] ] ] ] ] 4 => array:3 [ "identificador" => "bib0025" "etiqueta" => "5" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Pleuropulmonary and diaphragmatic ultrasound in intensive care medicine" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:4 [ 0 => "D.A.R. Serrano" 1 => "P.P. Terán" 2 => "R. Blancas" 3 => "M. Arroyo" ] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1016/j.medine.2023.06.009" "Revista" => array:7 [ "tituloSerie" => "Med Intensiva." "fecha" => "2023" "volumen" => "47" "numero" => "10" "paginaInicial" => "594" "paginaFinal" => "602" "link" => array:1 [ 0 => array:2 [ "url" => "https://www.ncbi.nlm.nih.gov/pubmed/37858366" "web" => "Medline" ] ] ] ] ] ] ] ] 5 => array:3 [ "identificador" => "bib0030" "etiqueta" => "6" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Role of ultrasound in acute respiratory failure and in the weaning of mechanical ventilation" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:4 [ 0 => "L. Zapata" 1 => "R. Blancas" 2 => "I. Conejo-Márquez" 3 => "M. García-de-Acilu" ] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1016/j.medine.2023.03.018" "Revista" => array:7 [ "tituloSerie" => "Med Intensiva." "fecha" => "2023" "volumen" => "47" "numero" => "9" "paginaInicial" => "529" "paginaFinal" => "542" "link" => array:1 [ 0 => array:2 [ "url" => "https://www.ncbi.nlm.nih.gov/pubmed/37419839" "web" => "Medline" ] ] ] ] ] ] ] ] 6 => array:3 [ "identificador" => "bib0035" "etiqueta" => "7" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "High-flow oxygen therapy in tracheostomized subjects with prolonged mechanical ventilation: a randomized crossover physiologic study" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:4 [ 0 => "P. Lersritwimanmaen" 1 => "N. Rittayamai" 2 => "J. Tscheikuna" 3 => "L. Brochard" ] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.4187/respcare.08585" "Revista" => array:7 [ "tituloSerie" => "Respir Care." "fecha" => "2021" "volumen" => "66" "numero" => "5" "paginaInicial" => "806" "paginaFinal" => "813" "link" => array:1 [ 0 => array:2 [ "url" => "https://www.ncbi.nlm.nih.gov/pubmed/33653909" "web" => "Medline" ] ] ] ] ] ] ] ] 7 => array:3 [ "identificador" => "bib0040" "etiqueta" => "8" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "High-flow oxygen therapy in tracheostomized patients at high risk of weaning failure" "autores" => array:1 [ 0 => array:2 [ "etal" => true "autores" => array:6 [ 0 => "T. Stripoli" 1 => "S. Spadaro" 2 => "R. Di Mussi" 3 => "C.A. Volta" 4 => "P. Trerotoli" 5 => "F. De Carlo" ] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1186/s13613-019-0482-2" "Revista" => array:6 [ "tituloSerie" => "Ann Intensive Care." "fecha" => "2019" "volumen" => "9" "numero" => "1" "paginaInicial" => "4" "link" => array:1 [ 0 => array:2 [ "url" => "https://www.ncbi.nlm.nih.gov/pubmed/30617626" "web" => "Medline" ] ] ] ] ] ] ] ] 8 => array:3 [ "identificador" => "bib0045" "etiqueta" => "9" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Physiological effects of high-flow oxygen in tracheostomized patients" "autores" => array:1 [ 0 => array:2 [ "etal" => true "autores" => array:6 [ 0 => "D. Natalini" 1 => "D.L. Grieco" 2 => "M.T. Santantonio" 3 => "L. Mincione" 4 => "F. Toni" 5 => "G.M. Anzellotti" ] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1186/s13613-019-0591-y" "Revista" => array:5 [ "tituloSerie" => "Ann Intensive Care." "fecha" => "2019" "volumen" => "9" "numero" => "1" "paginaInicial" => "114" ] ] ] ] ] ] 9 => array:3 [ "identificador" => "bib0050" "etiqueta" => "10" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "How much PEEP does high flow deliver via tracheostomy? A literature review and benchtop experiment" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:3 [ 0 => "M. Thomas" 1 => "R. Joshi" 2 => "G. Cave" ] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1155/2021/6036891" "Revista" => array:3 [ "tituloSerie" => "Crit Care Res Pract." "fecha" => "2021" "volumen" => "2021" ] ] ] ] ] ] ] ] ] ] "agradecimientos" => array:1 [ 0 => array:4 [ "identificador" => "xack777279" "titulo" => "Acknowledgments" "texto" => "<p id="par0210" class="elsevierStylePara elsevierViewall">The research team would like to thank María de los Angeles Magaz for translating the following manuscript into English, and Jorge Menedez for providing training and guidance in ultrasound measurements.</p><p id="par0215" class="elsevierStylePara elsevierViewall">Declaration of generative AI and AI-assisted technologies in the writing process:</p><p id="par0220" class="elsevierStylePara elsevierViewall">Throughout the preparation of this work, the authors utilised ChatGPT 3.5 to enhance writing quality and conciseness. Subsequently, the authors thoroughly reviewed and edited the content as necessary, assuming full responsibility for the publication's content.</p>" "vista" => "all" ] ] ] "idiomaDefecto" => "en" "url" => "/02105691/0000004800000010/v1_202409270613/S0210569124002201/v1_202409270613/en/main.assets" "Apartado" => array:4 [ "identificador" => "53" "tipo" => "SECCION" "es" => array:2 [ "titulo" => "Cartas científicas" "idiomaDefecto" => true ] "idiomaDefecto" => "es" ] "PDF" => "https://static.elsevier.es/multimedia/02105691/0000004800000010/v1_202409270613/S0210569124002201/v1_202409270613/en/main.pdf?idApp=WMIE&text.app=https://medintensiva.org/" "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S0210569124002201?idApp=WMIE" ]
| año/Mes | Html | Total | |
|---|---|---|---|
| 2024 Noviembre | 1 | 0 | 1 |
| 2024 Octubre | 45 | 9 | 54 |
| 2024 Septiembre | 15 | 4 | 19 |
