<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>2448-8909</journal-id>
<journal-title><![CDATA[Medicina crítica (Colegio Mexicano de Medicina Crítica)]]></journal-title>
<abbrev-journal-title><![CDATA[Med. crít. (Col. Mex. Med. Crít.)]]></abbrev-journal-title>
<issn>2448-8909</issn>
<publisher>
<publisher-name><![CDATA[Colegio Mexicano de Medicina Crítica A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2448-89092024000400239</article-id>
<article-id pub-id-type="doi">10.35366/118213</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Comparación de dos pruebas de ventilación espontánea: «pieza en T» versus «CPAP 0/presión soporte 0» para el retiro de la ventilación mecánica invasiva, en pacientes postoperados de cirugía cardiaca]]></article-title>
<article-title xml:lang="en"><![CDATA[Comparison of two spontaneous ventilation tests: «T-piece» versus «CPAP 0/pressure support 0» for weaning of invasive mechanical ventilation in post cardiac surgery patients]]></article-title>
<article-title xml:lang="pt"><![CDATA[Comparação de dois testes de ventilação espontânea: «tubo T» versus «CPAP 0/pressão suporte 0» para retirada de ventilação mecânica invasiva, em pacientes pós-cirurgia cardíaca]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández Martínez]]></surname>
<given-names><![CDATA[Mara]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Guillén Dolores]]></surname>
<given-names><![CDATA[Yazmín]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Delgado Quintana]]></surname>
<given-names><![CDATA[Carlos Alberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hilarión de la Vega Bravo]]></surname>
<given-names><![CDATA[Alberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto de Seguridad y Servicios Sociales para los Trabajadores del Estado (ISSSTE) Centro Médico Nacional 20 de Noviembre ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2024</year>
</pub-date>
<volume>38</volume>
<numero>4</numero>
<fpage>239</fpage>
<lpage>244</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2448-89092024000400239&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2448-89092024000400239&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2448-89092024000400239&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Introducción:  entre las causas de fracaso a la extubación se encuentra el incremento en el trabajo sistólico miocárdico; la American Thoracic Surgeons sugiere realizar prueba de ventilación espontánea (PVE) con presión de 5-8 cmH2O en lugar de pieza en T.  Objetivo:  comparar dos PVE (pieza en T versus PEEP 0/soporte 0) en el retiro de la ventilación mecánica en pacientes postoperados de cirugía cardiaca.  Material y métodos:  cohorte retrospectiva en adultos sometidos a cirugía cardiaca con circulación extracorpórea sometidos a destete de la ventilación mecánica programada, se calculó un tamaño de muestra de 60 pacientes (poder de 80% y error alfa de 5%). Datos obtenidos de hojas de registro de cada paciente. Se consideraron variables hemodinámicas, gasométricas y proBNP.  Resultados:  total 84 pacientes, 50 con PEEP 0/soporte 0 (60%) y 34 con pieza T (40%), no hubo diferencia en edad, peso, talla, género, comorbilidades, FEVI, SAPS II, tiempo para la PVE, proBNP, signos vitales o parámetros gasométricos. Falla extubación: 53.8% en 0/0 y 46.2% en pieza T, p = 0.47. En el estudio Burns hubo mayor éxito a la entubación con uso de presión soporte con evidencia baja, en este estudio el fracaso a la extubación no mostró diferencia, ambas técnicas fueron seguras.  Conclusiones:  comparando estos resultados con nuestro estudio, la falla a la extubación a las 48 horas en ambos grupos, no mostró diferencia. Ambas técnicas mostraron seguridad; por lo tanto, el éxito de extubación al utilizar cualquiera de las dos pruebas de ventilación espontánea: CPAP 0/0 versus pieza en T en pacientes postoperados de cirugía cardiaca es similar para ambos grupos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Introduction:  among the causes of extubation failure there&#8217;s a raise of the myocardial systolic work, the American Thoracic Surgeons suggests performing a spontaneous breath test (SBT) with an inspiratory pressure of 5 to 8 cmH2O instead of a T- piece.  Objective:  to compare two SBT (T-piece vs PEEP 0/support pressure 0) in the withdrawal of mechanical ventilation in post-operative cardiac surgery patients.  Material and methods:  retrospective cohort in adults undergoing cardiac surgery with extracorporeal circulation undergoing programmed weaning from mechanical ventilation, a sample size of 60 patients was calculated (powered to 80% and alfa-error of 5%) data obtained from record sheets of each patient. Hemodynamic, gasometric and NT-proBNP variables will be considered.  Results:  a total of 84 patients, 50 with peep 0/support 0 (60%) and 34 with T-piece (40%) there was no difference in age, weight, height, gender, comorbilities, LVEF, SAPS II time to PVE, proBNP, vital signs, gasometric parameters. Extubation failure: 53.8% in 0/0 and 46.2 in T-piece. p=0.47. In the Burns clinical trial, there was greater success at extubation with the use of pressure support with low evidence in this study extubation failure showed no difference, both techniques were safe.  Conclusions:  comparing these results with our study, extubation failure at 48 hours in both groups showed no difference. Both techniques showed safety, therefore, extubation success using either of the two spontaneous ventilation tests: CPAP 0/0 vs T-piece in postoperative cardiac surgery patients is similar for both groups.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo:  Introdução:  entre as causas de falha na extubação está o aumento do trabalho sistólico do miocárdio, a American Thoracic Surgeons sugere a realização de um teste de ventilação espontânea (PVE) com pressão de 5-8 cmH2O em vez de uma tubo T.  Objetivo:  comparar duas PVE (tubo T vs PEEP 0/Suporte 0) na retirada da ventilação mecânica em pacientes no pós-operatório de cirurgia cardíaca.  Material e métodos:  coorte retrospectiva em adultos submetidos a cirurgia cardíaca com circulação extracorpórea e submetidos a desmame da ventilação mecânica programada; foi calculado um tamanho de amostra de 60 pacientes (poder de 80% e erro alfa de 5%), com dados obtidos das fichas de registro de cada paciente. Foram consideradas variáveis hemodinâmicas, gasométricas e de proBNP. Resultados e discussão: total de 84 pacientes, 50 com PEEP 0/Support 0 (60%) e 34 com tubo T (40%), não houve diferença na idade, peso, altura, gênero, comorbidades, FEVE, SAPS II, tempo para PVE, proBNP, sinais vitais ou parâmetros gasométricos, falha de extubação: 53.8% em 0/0 e 46.2 em tubo T, p = 0.47. No estudo de Burns, houve maior sucesso de extubação com o uso de pressão de suporte com baixa evidência; neste estudo, a falha de extubação não mostrou diferença, ambas as técnicas foram seguras.  Conclusões:  comparando esses resultados com os de nosso estudo, a falha de extubação em 48 horas em ambos os grupos não apresentou diferença; ambas as técnicas mostraram segurança, portanto, o sucesso da extubação usando qualquer um dos dois testes de ventilação espontânea: CPAP 0/0 vs. Tubo T em pacientes no pós-operatório de cirurgia cardíaca é semelhante para ambos os grupos.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[ventilación mecánica]]></kwd>
<kwd lng="es"><![CDATA[cirugía cardiaca]]></kwd>
<kwd lng="es"><![CDATA[prueba de ventilación espontánea]]></kwd>
<kwd lng="es"><![CDATA[pieza en T]]></kwd>
<kwd lng="es"><![CDATA[CPAP soporte 0/PEEP 0]]></kwd>
<kwd lng="en"><![CDATA[mechanical ventilation]]></kwd>
<kwd lng="en"><![CDATA[cardiac surgery]]></kwd>
<kwd lng="en"><![CDATA[spontaneous breath test]]></kwd>
<kwd lng="en"><![CDATA[T-piece]]></kwd>
<kwd lng="en"><![CDATA[CPAP PEEP 0/support pressure 0]]></kwd>
<kwd lng="pt"><![CDATA[ventilação mecânica]]></kwd>
<kwd lng="pt"><![CDATA[cirurgia cardíaca]]></kwd>
<kwd lng="pt"><![CDATA[teste de ventilação espontânea]]></kwd>
<kwd lng="pt"><![CDATA[tubo T]]></kwd>
<kwd lng="pt"><![CDATA[suporte de CPAP 0/PEEP 0]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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