<?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>S2448-89092023000100035</article-id>
<article-id pub-id-type="doi">10.35366/109961</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Delirio y su relación con la supervivencia en pacientes geriátricos con neumonía grave por SARS-CoV-2 en un hospital de tercer nivel de atención en México]]></article-title>
<article-title xml:lang="en"><![CDATA[Delirium and its relationship with survival in geriatric patients with severe SARS-CoV-2 pneumonia in a tertiary care hospital in Mexico]]></article-title>
<article-title xml:lang="pt"><![CDATA[Delirium e sua relação com a sobrevida em pacientes geriátricos com pneumonia grave por SARS-CoV-2 em um Hospital Terciário no Mexico]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bazán Acevedo]]></surname>
<given-names><![CDATA[Cynthia Daniela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fernández Muñoz]]></surname>
<given-names><![CDATA[Edgar]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González Pérez]]></surname>
<given-names><![CDATA[Netzahualcóyotl]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López Carrillo]]></surname>
<given-names><![CDATA[Lilia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Mexicano del Seguro Social Hospital General Regional No. 220 ]]></institution>
<addr-line><![CDATA[Toluca ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Centro Médico ISSEMyM Toluca  ]]></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>1</numero>
<fpage>35</fpage>
<lpage>39</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2448-89092023000100035&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2448-89092023000100035&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2448-89092023000100035&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Introducción:  un factor de riesgo asociado a complicaciones por COVID-19 es la edad mayor de 60 años, por otra parte, el delirio ha demostrado estar asociado a un incremento en la mortalidad por cualquier causa, convirtiéndolo en una condición médica de gravedad.  Material y métodos:  estudio observacional, retrospectivo, longitudinal y comparativo en pacientes mayores de 65 años con neumonía grave por SARS-CoV-2. Se calculó la probabilidad de supervivencia individual acumulada con el método de Kaplan-Meier con base en la presencia o ausencia de delirio durante su hospitalización, y mediante la prueba log-rank se identificó sí existía diferencia significativa de la supervivencia entre grupos.  Resultados:  se reclutaron 349 pacientes, la edad osciló entre 65 y 94 años con una media de 72.2; 266 (76.2%) no cursaron con delirio, mientras que 83 (23.7%) sí lo desarrollaron. En el seguimiento a 30 días, en el grupo de pacientes sin delirio hubo 118 defunciones (supervivencia de 55.6%) y en el grupo de pacientes con delirio hubo 56 defunciones (supervivencia de 32.5%), p = 0.000.  Conclusión:  la supervivencia en pacientes geriátricos con neumonía grave por SARS-CoV-2 que desarrollan delirio es significativamente menor cuando se compara con aquéllos que no lo presentan.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Introduction:  a risk factor associated with complications from COVID-19 is age over 60 years, on the other hand, delirium has been shown to be associated with an increase in mortality from any cause, making it a serious medical condition.  Material and methods:  observational, retrospective, longitudinal and comparative study in patients older than 65 years with severe SARS-CoV-2 pneumonia. The cumulative individual survival probability was calculated using the Kaplan-Meier metho d based on the presence or absence of delirium during hospitalization, and the log-rank test identified whether there was a significant difference in survival between groups.  Results:  349 patients were recruited, the age ranged between 65 and 94 years, with a mean of 72.2; 266 (76.2%) did not develop delirium, while 83 (23.7%) did develop it. In the 30-day follow-up, there were 118 deaths in the group of patients without delirium (55.6% survival), and 56 deaths in the group of patients with delirium (32.5% survival), p = 0.000.  Conclusion:  survival in geriatric patients with severe SARS-CoV-2 pneumonia who develop delirium is significantly lower when compared to those who do not.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo:  Introdução:  um fator de risco associado às complicações do COVID-19 é a idade acima de 60 anos, por outro lado, o delirium demonstrou estar associado ao aumento da mortalidade por qualquer causa, tornando-o uma condição médica grave.  Material e métodos:  estudo observacional, retrospectivo, longitudinal e comparativo em pacientes com mais de 65 anos com pneumonia grave por SARS-CoV-2. Calculou-se a probabilidade de sobrevida individual acumulada pelo método de Kaplan Meier com base na presença ou ausência de delirium durante a internação e pelo teste de Log-Rank para identificar se houve diferença significativa na sobrevida entre os grupos.  Resultados:  foram recrutados 349 pacientes, a idade variou entre 65 e 94 anos, com média de 72.2; 266 (76.2%) não apresentaram delirium, enquanto 83 (23.7%) o desenvolveram. No seguimento de 30 dias, houve 118 óbitos no grupo de pacientes sem delirium (sobrevida de 55.6%) e, no grupo de pacientes com delirium, 56 óbitos (sobrevida de 32.5%), p = 0.000.  Conclusão:  a sobrevida em pacientes geriátricos com pneumonia grave por SARS-CoV-2 que desenvolvem delirium é significativamente menor quando comparada àqueles que não desenvolvem.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[neumonía grave]]></kwd>
<kwd lng="es"><![CDATA[SARS-CoV-2]]></kwd>
<kwd lng="es"><![CDATA[geriatría]]></kwd>
<kwd lng="es"><![CDATA[delirio]]></kwd>
<kwd lng="es"><![CDATA[supervivencia]]></kwd>
<kwd lng="en"><![CDATA[severe pneumonia]]></kwd>
<kwd lng="en"><![CDATA[SARS-CoV-2]]></kwd>
<kwd lng="en"><![CDATA[geriatrics]]></kwd>
<kwd lng="en"><![CDATA[delirium]]></kwd>
<kwd lng="en"><![CDATA[survival]]></kwd>
<kwd lng="pt"><![CDATA[pneumonia grave]]></kwd>
<kwd lng="pt"><![CDATA[SARS-CoV-2]]></kwd>
<kwd lng="pt"><![CDATA[geriatria]]></kwd>
<kwd lng="pt"><![CDATA[delirium]]></kwd>
<kwd lng="pt"><![CDATA[sobrevivência]]></kwd>
</kwd-group>
</article-meta>
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