<?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>S2448-89092023000200082</article-id>
<article-id pub-id-type="doi">10.35366/110441</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Estudio de cohorte para evaluar la asociación entre el tiempo de inicio de nutrición con días de ventilación mecánica invasiva en pacientes con choque séptico]]></article-title>
<article-title xml:lang="en"><![CDATA[Cohort study to evaluate the association between the start time of nutrition with days of invasive mechanical ventilation in patients with septic shock]]></article-title>
<article-title xml:lang="pt"><![CDATA[Estudo de coorte para avaliar a associação entre o tempo de início da nutrição com os dias de ventilação mecânica invasiva em pacientes com choque séptico]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ángeles Márquez]]></surname>
<given-names><![CDATA[Mónica]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Aisa Álvarez]]></surname>
<given-names><![CDATA[Alfredo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Aguirre Sánchez]]></surname>
<given-names><![CDATA[Janet Silvia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez Díaz]]></surname>
<given-names><![CDATA[Braulia Aurelia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Montaño Jiménez]]></surname>
<given-names><![CDATA[Alejandro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Centro Médico ABC  ]]></institution>
<addr-line><![CDATA[ ]]></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>2</numero>
<fpage>82</fpage>
<lpage>87</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2448-89092023000200082&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2448-89092023000200082&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2448-89092023000200082&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Introducción:  estudio de cohorte para evaluar la asociación entre el tiempo de inicio de nutrición con los días de ventilación mecánica invasiva (VMI) en pacientes con choque séptico. La ventilación mecánica (VM) es un soporte que mantiene al paciente mientras la lesión estructural o funcional por la que se indicó se corrige. La sepsis es una causa de disfunción diafragmática que contribuye a insuficiencia respiratoria; sin embargo, se dispone de pocos datos sobre la interacción entre sepsis y VM prolongada. Actualmente, aunque la nutrición se ha establecido como un pilar de apoyo y tratamiento en pacientes críticamente enfermos, el impacto de esta intervención es poco clara.  Objetivo:  verificar la existencia de la asociación entre el tiempo de inicio de la nutrición y la duración de la VMI en pacientes con choque séptico.  Material y métodos:  se realizó un estudio de cohorte prolectivo en pacientes con choque séptico y VMI, se documentó el tiempo de inicio de la nutrición, esta decisión fue independiente del estudio. Se dio seguimiento diario con respecto a los días que requirieron VMI y el inicio de nutrición enteral o parenteral. La nutrición temprana es cuando se inicia en las primeras 48 horas del ingreso a terapia intensiva. Se empleó Stata para el análisis estadístico, en el cual se utilizaron pruebas &#967;2 y regresión logística.  Resultados:  se incluyeron 131 pacientes con choque séptico y VMI, a 110 pacientes se les inició nutrición temprana y a 21 nutrición tardía. La edad promedio fue de 69 años, 23% (31) del total de los pacientes tenía diabetes mellitus (DM), que se presentó con mayor frecuencia en el grupo de nutrición tardía. En cuanto a la gravedad, no se encontró diferencia entre ambos grupos. La duración promedio con ventilación fue de dos días, con mayor tiempo en el grupo de inicio tardío de la nutrición (dos días vs cinco días, p = 0.012). No obstante, al ajustar por regresión logística, no se encontró diferencia estadísticamente significativa (OR 0.13, IC 95% 0.14-1.17, p = 0.69).  Conclusiones:  aunque la nutrición se considera un pilar de apoyo necesario en todo paciente crítico, de acuerdo con nuestros resultados, el momento de inicio no afecta directamente los días de VMI.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Introduction:  cohort study to evaluate the association between the start time of nutrition with the days of invasive mechanical ventilation (IMV) in patients with septic shock. Mechanical ventilation (MV) is a support that maintains the patient while the structural or functional injury for which it was indicated is corrected. Sepsis is a cause of diaphragmatic dysfunction, contributing to respiratory failure; however, few data are available on the interaction between sepsis and prolonged MV. Currently, although nutrition has been established as a mainstay of support and treatment in critically ill patients, the impact of this intervention is unclear.  Objective:  to verify the existence of the association between the start time of nutrition and the duration of IMV in patients with septic shock.  Material and methods:  a prolective cohort study was carried out in patients with septic shock and IMV was documented at the start of nutrition, this decision being independent of the study. Daily follow-up was given regarding the days that required IMV and the start of enteral or parenteral nutrition. Early nutrition is when it is started within the first 48 hours of admission to intensive care. Stata was used for statistical analysis in which &#967;2 tests and logistic regression were used.  Results:  131 patients with septic shock and IMV were included, 110 patients started early nutrition and 21 delayed nutrition. The average age was 69 years, 23% (31) of the total patients had diabetes mellitus (DM), presenting more frequently in the late nutrition group. Regarding severity, no difference was found between the two groups. The average duration with ventilation was two days, with a longer time in the late start of nutrition group (2 days vs 5 days, p = 0.012). However, when adjusting for logistic regression, no statistically significant difference was found (OR 0.13, CI 95% 0.14-1.17, p = 0.69).  Conclusions:  although nutrition is considered a necessary support pillar in all critical patients, according to our results, the start time does not directly affect the days of invasive mechanical ventilation.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo:  Introdução:  estudo de coorte para avaliar a associação entre o tempo de início da nutrição com os dias de ventilação mecânica invasiva (VMI) em pacientes com choque séptico. A ventilação mecânica (VM) é um suporte que mantém o paciente enquanto se corrige a lesão estrutural ou funcional para a qual foi indicada. A sepse é a causa da disfunção diafragmática, contribuindo para a insuficiência respiratória; no entanto, poucos dados estão disponíveis sobre a interação entre sepse e VM prolongada. Atualmente, embora a nutrição tenha se estabelecido como pilar de suporte e tratamento em pacientes críticos, o impacto dessa intervenção não está claro.  Objetivo:  verificar a existência de associação entre o tempo de início da nutrição e a duração da VMI em pacientes com choque séptico.  Material e métodos:  foi realizado um estudo de coorte proletivo em pacientes com choque séptico e VMI, o tempo para iniciar a nutrição foi documentado, sendo esta decisão independente do estudo. Foi feito acompanhamento diário dos dias que necessitaram de VMI e início de nutrição enteral ou parenteral. A nutrição precoce é quando é iniciada nas primeiras 48 horas de internação na terapia intensiva. Utilizou-se o Stata para a análise estatística em que foram utilizados os testes &#967;2 e regressão logística.  Resultados:  foram incluídos 131 pacientes com choque séptico e VMI, 110 pacientes iniciaram nutrição precoce e 21 nutrição tardia. A média de idade foi de 69 anos, 23% (31) do total de pacientes apresentavam diabetes mellitus (DM), apresentando-se com maior frequência no grupo de nutrição retardada. Em relação à gravidade, não foi encontrada diferença entre os dois grupos. A duração média da ventilação foi de 2 dias, com maior tempo no grupo de nutrição de início tardio (2 dias vs 5 dias, p = 0.012). No entanto, ao ajustar por regressão logística, não foi encontrada diferença estatisticamente significativa OR 0.13, IC (0.14-1.17) p = 0.69.  Conclusões:  embora a nutrição seja considerada um pilar de suporte necessário em todos os pacientes críticos, de acordo com nossos resultados, o horário de início não afeta diretamente os dias de ventilação mecânica invasiva.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[sepsis]]></kwd>
<kwd lng="es"><![CDATA[choque séptico]]></kwd>
<kwd lng="es"><![CDATA[nutrición temprana]]></kwd>
<kwd lng="es"><![CDATA[ventilación mecánica]]></kwd>
<kwd lng="en"><![CDATA[sepsis]]></kwd>
<kwd lng="en"><![CDATA[septic shock]]></kwd>
<kwd lng="en"><![CDATA[early nutrition]]></kwd>
<kwd lng="en"><![CDATA[mechanical ventilation]]></kwd>
<kwd lng="pt"><![CDATA[sepse]]></kwd>
<kwd lng="pt"><![CDATA[choque séptico]]></kwd>
<kwd lng="pt"><![CDATA[nutrição precoce]]></kwd>
<kwd lng="pt"><![CDATA[ventilação mecânica]]></kwd>
</kwd-group>
</article-meta>
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