<?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>S2448-89092023000300209</article-id>
<article-id pub-id-type="doi">10.35366/111297</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Relación ventilatoria elevada asociada a aumento de mortalidad en paciente con síndrome de dificultad respiratoria en unidad de cuidados intensivos]]></article-title>
<article-title xml:lang="en"><![CDATA[High ventilatory ratio associated with increased mortality in a patient with respiratory distress syndrome in an intensive care unit]]></article-title>
<article-title xml:lang="pt"><![CDATA[Relação ventilatória elevada associada a mortalidade aumentada em pacientes com síndrome de dificuldade respiratória na unidade de terapia intensiva]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Flores Rodríguez]]></surname>
<given-names><![CDATA[Rafael]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mendoza Rodríguez]]></surname>
<given-names><![CDATA[Martín]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cortes Munguía]]></surname>
<given-names><![CDATA[José Alfredo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López González]]></surname>
<given-names><![CDATA[Alfonso]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital General La Villa  ]]></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>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2023</year>
</pub-date>
<volume>37</volume>
<numero>3</numero>
<fpage>209</fpage>
<lpage>218</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2448-89092023000300209&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2448-89092023000300209&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2448-89092023000300209&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Introducción:  evidencia considerable apoya la fracción de espacio muerto pulmonar como un predictor independiente de mortalidad en el síndrome de dificultad respiratoria aguda (SDRA). Sin embargo, rara vez se mide o se usa en la práctica clínica. Principalmente, esto se debe a la falta de un índice simple junto a la cama para monitorear el espacio muerto y el gasto adicional asociado con la medición en el entorno de cuidados críticos. En consecuencia, el fallo de ventilación, a pesar de su importancia, está completamente excluido como variable estratificante en el SDRA.  Objetivo:  demostrar que la relación ventilatoria (RV) es un marcador pronóstico en pacientes con ventilación mecánica con SDRA en la Unidad de Cuidados Intensivos (UCI) del Hospital General La Villa.  Material y métodos:  el análisis exploratorio consistió en la generación de una matriz de correlación utilizando como estadístico de prueba el coeficiente de correlación de Pearson (r ). Para el análisis comparativo se utilizó un análisis de varianza ANOVA en el que asumimos varianzas homogéneas y distribución normal o una prueba de t-Student, cada prueba fue llevada a un nivel de confianza de 95%. Para la estimación del riesgo asociado a mortalidad en pacientes con SDRA se utilizó un modelo de regresión logística binaria con el método Logit. Para todos los análisis cuantitativos se utilizó como estadístico de prueba p.  Resultados:  para la asociación de los valores de RV con la probabilidad de mortalidad hospitalaria se llevó a cabo un análisis de regresión logística univariable, el cual mostró que a medida que los valores de RV se incrementan el riesgo de mortalidad aumenta (OR 3.07E+07 [4.657, 2.032e+11], p &lt; 0.000).  Conclusiones:  los valores de relación ventilatoria pueden servir como un indicador temprano para el pronóstico de la mortalidad en pacientes con SDRA que han ingresado la UCI.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Introduction:  considerable evidence supports lung dead space fraction as an independent predictor of mortality in ARDS. However, it is rarely measured or used in clinical practice. Primarily, this is due to the lack of a simple bedside index to monitor dead space and the additional expense associated with measurement in the critical care setting. Consequently, ventilation failure, despite its importance, is completely excluded as a stratifying variable in ARDS.  Objective:  to demonstrate that the ventilatory ratio is a prognostic marker in mechanically ventilated patients with SARS in the ICU of Hospital General La Villa.  Material and methods:  the exploratory analysis consisted of generating a correlation matrix using Pearson&#8217;s correlation coefficient (r) as the test statistic. For the comparative analysis, an ANOVA was used in which we assumed homogeneous variances and normal distribution or a t-student test, each test was carried at a confidence level of 95%. To estimate the risk associated with mortality in patients with ARDS, a binary logistic regression model was used with the Logit method. For all quantitative analyses, p-value.  Results:  for the association of RV values with the probability of hospital mortality, a univariate logistic regression analysis was carried out, which showed that as RV values increase, the risk of mortality increases. (OR 3.07E+07 [4.657, 2.032e+11], p-value &lt; 0.000).  Conclusions:  ventilatory ratio values can serve as an early indicator for the prognosis of mortality in patients with ARDS who have been admitted to the Intensive Care Unit.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo:  Introdução:  evidências consideráveis &#8203;&#8203;apoiam a fração do espaço morto pulmonar como preditor independente de mortalidade na SDRA. No entanto, raramente é medido ou usado na prática clínica. Principalmente, isso se deve à falta de um índice simples à beira de leito para monitorar o espaço morto e o gasto adicional associado à medição no ambiente da unidade de terapia intensiva. Consequentemente, a falha ventilatória, apesar de sua importância, é completamente excluída como variável estratificadora na SDRA.  Objetivo:  demonstrar que a relação ventilatória é um marcador prognóstico em pacientes com ventilação mecânica com SARS na UTI do Hospital General La Villa.  Material e métodos:  a análise exploratória consistiu na geração de uma matriz de correlação utilizando como estatística de teste o coeficiente de correlação de Pearson (r). Para a análise comparativa foi utilizada uma ANOVA em que assumimos variâncias homogêneas e distribuição normal ou um teste t-Student, cada teste foi levado a um nível de confiança de 95%. Para estimar o risco associado à mortalidade em pacientes com SDRA, foi utilizado um modelo de regressão logística binária com o método Logit. Para todas as análises quantitativas, utilizou- se como estatística o teste p-value.  Resultados:  para a associação dos valores de RV com a probabilidade de mortalidade hospitalar, foi realizada uma análise de regressão logística univariada, que mostrou que à medida que os valores de RV aumentam, o risco de mortalidade aumenta. (OR 3.07E+07 [4.657, 2.032e+11], p-value &lt; 0.000).  Conclusões:  os valores da relação ventilatória podem servir como um indicador precoce do prognóstico de mortalidade em pacientes com SDRA internados na Unidade de Terapia Intensiva.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[relación ventilatoria]]></kwd>
<kwd lng="es"><![CDATA[ventilación mecánica invasiva]]></kwd>
<kwd lng="es"><![CDATA[SDRA]]></kwd>
<kwd lng="en"><![CDATA[ventilatory relationship]]></kwd>
<kwd lng="en"><![CDATA[invasive mechanical ventilation]]></kwd>
<kwd lng="en"><![CDATA[ARDS]]></kwd>
<kwd lng="pt"><![CDATA[relação ventilatória]]></kwd>
<kwd lng="pt"><![CDATA[ventilação mecânica invasiva]]></kwd>
<kwd lng="pt"><![CDATA[SDRA]]></kwd>
</kwd-group>
</article-meta>
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