<?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>S2448-89092024000800632</article-id>
<article-id pub-id-type="doi">10.35366/120008</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Afectación tomográfica y curso clínico en nativos de elevada altitud con síndrome de distrés respiratorio agudo severo por SARS-CoV-2]]></article-title>
<article-title xml:lang="en"><![CDATA[Tomographic involvement and clinical course in high-altitude natives with severe acute respiratory distress syndrome due to SARS-CoV-2]]></article-title>
<article-title xml:lang="pt"><![CDATA[Afetação tomográfica e evolução clínica em nativos de grandes altitudes com síndrome de dificuldade respiratória aguda grave por SARS-CoV-2]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Jiménez Guevara]]></surname>
<given-names><![CDATA[Cándida Yasmín]]></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"/>
<xref ref-type="aff" rid="Aaf"/>
</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 contrib-type="author">
<name>
<surname><![CDATA[Domínguez Flores]]></surname>
<given-names><![CDATA[Oliver Yemen]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Almaraz Ruíz]]></surname>
<given-names><![CDATA[Jadiel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Camacho Aguirre]]></surname>
<given-names><![CDATA[Héctor Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto de Seguridad Social del Estado de México y Municipios  ]]></institution>
<addr-line><![CDATA[ ]]></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>8</numero>
<fpage>632</fpage>
<lpage>635</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2448-89092024000800632&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2448-89092024000800632&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2448-89092024000800632&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Introducción:  en pacientes con síndrome de dificultad respiratoria aguda (SDRA) severa por SARS-CoV-2 el curso clínico parece estar influenciado por la aclimatización a la altitud.  Material y métodos:  estudio observacional, retrospectivo, longitudinal, comparativo, en pacientes con SDRA severo por SARS-CoV-2. Se analizó el grado de afectación tomográfica, días de ventilación mecánica (VM), días de estancia en la unidad de cuidados intensivos (UCI), días de hospitalización y probabilidad de supervivencia en nativos de baja, media y elevada altitud.  Resultados:  los nativos de baja y media altitud requirieron 4.3 días más de VM, 4.2 días más de estancia en UCI y 2.6 días más de estancia hospitalaria cuando se compararon con aquellos aclimatados a la elevada altitud (p = 0.286, p = 0.302, p = 0.893 respectivamente). La afectación tomográfica severa ocurrió en 100% de los pacientes nativos de baja y media altitud vs en 71.4% de los nativos de elevada altitud (p = 0.159). La supervivencia en nativos de baja, media y elevada altitud, fue de 50, 62.5 y 68% respectivamente (p = 0.872).  Conclusión:  los pacientes aclimatados a la elevada altitud con SDRA severo por SARS-COV-2 tienden a un curso clínico más favorable con una mayor supervivencia cuando se comparan con nativos de menor altitud.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Introduction:  in patients with severe acute respiratory distress syndrome (ARDS) due to SARS-COV-2, the clinical course seems to be influenced by altitude acclimatization.  Material and methods:  observational, retrospective, longitudinal, comparative study in patients with severe ARDS due to SARS-CoV-2. The degree of tomographic involvement, days of mechanical ventilation (MV), days of stay in the intensive care unit (ICU), days of hospitalization and probability of survival in natives of low, medium and high altitudes were analyzed.  Results:  natives of low and medium altitudes required 4.3 more days of MV, 4.2 more days of stay in the ICU and 2.6 more days of hospital stay when compared with those acclimatized to high altitude (p = 0.286, p = 0.302, p = 0.893 respectively). Severe CT involvement occurred in 100% of patients native to low and medium altitude vs 71.4% of those native to high altitude (p = 0.159). Survival in natives of low, medium and high altitude was 50, 62.5 and 68% respectively (p = 0.872).  Conclusion:  patients acclimatized to high altitude with severe ARDS due to SARS-CoV-2 tend to have a more favorable clinical course with higher survival when compared to natives of lower altitude.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo:  Introdução:  em pacientes com síndrome de dificuldade respiratória aguda grave (SDRA) devido ao SARS-CoV-2, o curso clínico parece ser influenciado pela aclimatação à altitude.  Material e métodos:  estudo observacional, retrospectivo, longitudinal e comparativo em pacientes com SDRA grave por SARS-CoV-2. Foram analisados o grau de comprometimento tomográfico, dias de ventilação mecânica (VM), dias de permanência na unidade de terapia intensiva (UTI), dias de internação e probabilidade de sobrevivência em nativos de baixa, média e alta altitude.  Resultados:  os nativos de baixa e média altitude necessitaram de 4.3 dias a mais de VM, 4.2 dias a mais de internação na UTI e 2.6 dias a mais de internação hospitalar quando comparados aos aclimatados a alta altitude (p = 0.286, p 0.302, p 0.893 respectivamente). A afetação tomográfica grave ocorreu em 100% dos pacientes nativos de baixa e média altitude vs. 71.4% dos pacientes nativos de alta altitude (p = 0.159). A sobrevivência em nativos de baixa, média e alta altitude foi de 50%, 62.5% e 68% respectivamente (p = 0.872).  Conclusão:  pacientes aclimatados a grandes altitudes com SDRA grave devido ao SARS- CoV-2 tendem a ter uma evolução clínica mais favorável e com maior sobrevida quando comparados aos nativos de menores altitudes.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[síndrome de distrés respiratorio agudo severo]]></kwd>
<kwd lng="es"><![CDATA[SARS-CoV-2]]></kwd>
<kwd lng="es"><![CDATA[altitud]]></kwd>
<kwd lng="es"><![CDATA[supervivencia]]></kwd>
<kwd lng="en"><![CDATA[severe acute respiratory distress syndrome]]></kwd>
<kwd lng="en"><![CDATA[SARS-CoV-2]]></kwd>
<kwd lng="en"><![CDATA[altitude]]></kwd>
<kwd lng="en"><![CDATA[survival]]></kwd>
<kwd lng="pt"><![CDATA[SDRA grave]]></kwd>
<kwd lng="pt"><![CDATA[SARS-CoV-2]]></kwd>
<kwd lng="pt"><![CDATA[altitude]]></kwd>
<kwd lng="pt"><![CDATA[sobrevivência]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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