Letter to the Editor
Reply to “Cerebral circulatory arrest detected by extracranial artery ultrasound”
Respuesta a «Parada circulatoria cerebral detectada por la insonación de arterias extracraneales»
P. Blanco
Intensive Care Physician, Intensive Care Unit, Hospital “Dr. Emilio Ferreyra”, Necochea, Argentina
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Revuelto-Rey, J.J. Egea-Guerrero" "autores" => array:2 [ 0 => array:2 [ "nombre" => "J." "apellidos" => "Revuelto-Rey" ] 1 => array:2 [ "nombre" => "J.J." "apellidos" => "Egea-Guerrero" ] ] ] ] ] "idiomaDefecto" => "en" "Traduccion" => array:1 [ "en" => array:9 [ "pii" => "S2173572717301157" "doi" => "10.1016/j.medine.2017.01.005" "estado" => "S300" "subdocumento" => "" "abierto" => array:3 [ "ES" => true "ES2" => true "LATM" => true ] "gratuito" => true "lecturas" => array:1 [ "total" => 0 ] "idiomaDefecto" => "en" "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S2173572717301157?idApp=WMIE" ] ] "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S0210569117300542?idApp=WMIE" "url" => "/02105691/0000004100000006/v1_201707211500/S0210569117300542/v1_201707211500/en/main.assets" ] "en" => array:12 [ "idiomaDefecto" => true "cabecera" => "<span class="elsevierStyleTextfn">Letter to the Editor</span>" "titulo" => "Reply to “Cerebral circulatory arrest detected by extracranial artery ultrasound”" "tieneTextoCompleto" => true "saludo" => "Dear Editor," "paginas" => array:1 [ 0 => array:2 [ "paginaInicial" => "387" "paginaFinal" => "388" ] ] "autores" => array:1 [ 0 => array:3 [ "autoresLista" => "P. Blanco" "autores" => array:1 [ 0 => array:3 [ "nombre" => "P." "apellidos" => "Blanco" "email" => array:1 [ 0 => "ohtusabes@gmail.com" ] ] ] "afiliaciones" => array:1 [ 0 => array:2 [ "entidad" => "Intensive Care Physician, Intensive Care Unit, Hospital “Dr. Emilio Ferreyra”, Necochea, Argentina" "identificador" => "aff0005" ] ] ] ] "titulosAlternativos" => array:1 [ "es" => array:1 [ "titulo" => "Respuesta a «Parada circulatoria cerebral detectada por la insonación de arterias extracraneales»" ] ] "textoCompleto" => "<span class="elsevierStyleSections"><p id="par0030" class="elsevierStylePara elsevierViewall">Thank you very much to Dr. Revuelto Rey and Egea-Guerrero for interest in the image-based case. In these types of submissions, there is usually no room for detailed explanations; fortunately, here there is room to do so.</p><p id="par0005" class="elsevierStylePara elsevierViewall">The use of transcranial Doppler (TCD) is widely accepted in many countries for the assessment of the “intracranial” artery flow when evaluating for cerebral circulatory arrest (CCA). For this indication, Doppler insonation of middle cerebral arteries (MCA) as well as basilar artery (BA)/intracranial vertebral arteries is preferred over transorbital insonation of the intracranial (carotid siphon) internal carotid artery (ICA) or transcervical (extracranial) ICA insonation.<a class="elsevierStyleCrossRef" href="#bib0015"><span class="elsevierStyleSup">1</span></a> While the insonation of extracranial ICA and transorbital ICA has shown a high specificity for diagnosing CCA, this finding comes up late in comparison with insonation of MCA and BA,<a class="elsevierStyleCrossRef" href="#bib0020"><span class="elsevierStyleSup">2</span></a> thus requiring serial examinations and long observation periods, as seen in the case presented. This obviously means that when an early confirmation of brain death is mandatory (for example, in organ donation), the isolated use of extracranial artery or transorbital insonation is not probably the best option.<a class="elsevierStyleCrossRef" href="#bib0020"><span class="elsevierStyleSup">2</span></a></p><p id="par0010" class="elsevierStylePara elsevierViewall">From another perspective, ultrasound is nearly all we have in many small centers as an ancillary test for confirming brain death and many intensivists give up when they cannot find an MCA and BA flow. This is probably the most important point of the case, teaching that extracranial artery insonation is feasible and reliable, showing the same flow CCA patterns (although in a late fashion and this must be especially remembered) as insonation of intracranial arteries and useful when no other ancillary test is available.</p><p id="par0015" class="elsevierStylePara elsevierViewall">This work has not been presented at any conferences.</p><p id="par0020" class="elsevierStylePara elsevierViewall">This work has not been supported by any grants.</p><p id="par0025" class="elsevierStylePara elsevierViewall">Author has no conflicts of interest related to this submission.</p></span>" "pdfFichero" => "main.pdf" "tienePdf" => true "bibliografia" => array:2 [ "titulo" => "References" "seccion" => array:1 [ 0 => array:2 [ "identificador" => "bibs0005" "bibliografiaReferencia" => array:2 [ 0 => array:3 [ "identificador" => "bib0015" "etiqueta" => "1" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Latin American consensus on the use of transcranial Doppler in the diagnosis of brain death" "autores" => array:1 [ 0 => array:2 [ "colaboracion" => "Consensus Group on Transcranial Doppler in the Diagnosis of Brain Death" "etal" => false ] ] ] ] "host" => array:1 [ 0 => array:1 [ "Revista" => array:6 [ "tituloSerie" => "Rev Bras Ter Intensiva" "fecha" => "2014" "volumen" => "26" "paginaInicial" => "240" "paginaFinal" => "252" "link" => array:1 [ 0 => array:2 [ "url" => "https://www.ncbi.nlm.nih.gov/pubmed/25295818" "web" => "Medline" ] ] ] ] ] ] ] ] 1 => array:3 [ "identificador" => "bib0020" "etiqueta" => "2" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Transcranial Doppler ultrasonography in the assessment of cerebral circulation arrest: improving sensitivity by transcervical and transorbital carotid insonation and serial examinations" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:3 [ 0 => "A. Conti" 1 => "D.G. Iacopino" 2 => "A. Spada" ] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1007/s12028-009-9199-7" "Revista" => array:6 [ "tituloSerie" => "Neurocrit Care" "fecha" => "2009" "volumen" => "10" "paginaInicial" => "326" "paginaFinal" => "335" "link" => array:1 [ 0 => array:2 [ "url" => "https://www.ncbi.nlm.nih.gov/pubmed/19238589" "web" => "Medline" ] ] ] ] ] ] ] ] ] ] ] ] ] "idiomaDefecto" => "en" "url" => "/02105691/0000004100000006/v1_201707211500/S021056911730061X/v1_201707211500/en/main.assets" "Apartado" => array:4 [ "identificador" => "57221" "tipo" => "SECCION" "es" => array:2 [ "titulo" => "Cartas al Editor" "idiomaDefecto" => true ] "idiomaDefecto" => "es" ] "PDF" => "https://static.elsevier.es/multimedia/02105691/0000004100000006/v1_201707211500/S021056911730061X/v1_201707211500/en/main.pdf?idApp=WMIE&text.app=https://medintensiva.org/" "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S021056911730061X?idApp=WMIE" ]
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