<?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>S2448-89092022000400228</article-id>
<article-id pub-id-type="doi">10.35366/105794</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Papel del ultrasonido pulmonar en la clasificación por fenotipos del SDRA por COVID-19]]></article-title>
<article-title xml:lang="en"><![CDATA[Role of lung ultrasound in the classification by phenotypes of ARDS by COVID-19]]></article-title>
<article-title xml:lang="pt"><![CDATA[Papel da ultrassonografia pulmonar na classificação por fenótipos da SDRA por COVID-19]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ortiz Larios]]></surname>
<given-names><![CDATA[Fabricio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García Salas]]></surname>
<given-names><![CDATA[Yessica]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Torres Adalid]]></surname>
<given-names><![CDATA[José David]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ibarra Estrada]]></surname>
<given-names><![CDATA[Miguel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Civil de Guadalajara «Fray Antonio Alcalde»  ]]></institution>
<addr-line><![CDATA[Guadalajara Jalisco]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2022</year>
</pub-date>
<volume>36</volume>
<numero>4</numero>
<fpage>228</fpage>
<lpage>234</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2448-89092022000400228&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2448-89092022000400228&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2448-89092022000400228&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Introducción:  La mayoría de los pacientes con COVID-19 mecánicamente ventilados cumplen con los criterios de Berlín para síndrome de distrés respiratorio agudo (SDRA); sin embargo, se ha observado una discrepancia entre el grado de hipoxemia y la distensibilidad pulmonar. Basados en la mecánica respiratoria y hallazgos tomográficos se han propuesto dos fenotipos distintos: L y H, cada fenotipo podría beneficiarse de estrategias de ventilación distintas; sin embargo, realizar tomografías durante la pandemia resulta complicado.  Objetivo:  Determinar la utilidad del ultrasonido pulmonar para diferenciar los fenotipos del SDRA por COVID-19 mediante la correlación de lung ultrasound score (LUS) y la distensibilidad del sistema respiratorio.  Material y métodos:  Analizamos de forma prospectiva pacientes con COVID-19 bajo ventilación mecánica invasiva a su ingreso a la unidad de cuidados intensivos (UCI).  Resultados:  De un total de 90 pacientes, 62% hombres, mediana 60 años, SOFA siete puntos. La incidencia del fenotipo H fue 83.3%. El puntaje de aireación (LUS) tuvo una diferencia significativa entre ambos fenotipos (p = 0.001), con un área bajo la curva de 0.797 (p &lt; 0.001). Con punto de corte para la predicción del fenotipo H: LUS &gt; 18 puntos (sensibilidad 82.6%, especificidad 73.3%).  Conclusión:  El ultrasonido pulmonar valora de forma confiable el grado de aireación pulmonar y junto con la distensibilidad permite clasificar por fenotipos a los pacientes con SDRA por COVID-19.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Introduction:  Most mechanically ventilated COVID-19 patients meet the Berlin criteria for acute respiratory distress syndrome (ARDS), however, a discrepancy between the degree of hypoxemia and pulmonary distensibility has been observed. Based on respiratory mechanics and tomographic findings two distinct phenotypes have been proposed: L and H, each phenotype could benefit from distinct ventilation strategies, however, performing tomographic scans during pandemic is complicated.  Objective:  To determine the usefulness of lung ultrasound to differentiate ARDS phenotypes by COVID-19, by correlating LUS and respiratory system distensibility.  Material and methods:  We prospectively analyzed patients with COVID-19 under invasive mechanical ventilation on admission to the ICU.  Results:  Of a total of 90 patients, 62% men, median 60 years, SOFA 7 points. The incidence of phenotype H was 83.3%. LUS had a significant difference between both phenotypes (p = 0.001), with an area under the curve of 0.797 (p &lt; 0.001). With cutoff point for phenotype H prediction: LUS &gt;18 points (sensitivity 82.6%, specificity 73.3%).  Conclusion:  Lung ultrasound reliably assesses the degree of pulmonary aeration and, together with distensibility, allows the classification of patients with ARDS by COVID-19 phenotypes.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo:  Introdução:  A maioria dos pacientes com COVID-19 ventilados mecanicamente atende aos critérios de Berlim para SDRA, no entanto, foi observada uma discrepância entre o grau de hipoxemia e a complacência pulmonar. Com base na mecânica respiratória e nos achados tomográficos, dois fenótipos diferentes foram propostos: L e H, cada fenótipo poderia se beneficiar de diferentes estratégias de ventilação, porém, realizar a tomografia durante a pandemia é complicado.  Objetivo:  Determinar a utilidade da ultrassonografia pulmonar para diferenciar os fenótipos de SDRA por COVID-19, correlacionando LUS e complacência do sistema respiratório.  Material e métodos:  Analisamos prospectivamente pacientes com COVID-19 sob ventilação mecânica invasiva na admissão à UTI.  Resultados:  De um total de 90 pacientes, 62% homens, idade média de 60 anos, SOFA 7 pontos. A incidência do fenótipo H foi de 83.3%. O LUS apresentou diferença significativa entre os dois fenótipos (p = 0.001), com área sob a curva de 0.797 (p &lt; 0.001). Com ponto de corte para a predição do fenótipo H: LUS &gt; 18 pontos (sensibilidade 82.6%, especificidade 73.3%).  Conclusão:  A ultrassonografia pulmonar avalia de forma confiável o grau de aeração pulmonar e, juntamente com a distensibilidade, permite que os pacientes com SDRA por COVID-19 sejam classificados por fenótipos.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Ultrasonido]]></kwd>
<kwd lng="es"><![CDATA[pulmonar]]></kwd>
<kwd lng="es"><![CDATA[fenotipos]]></kwd>
<kwd lng="es"><![CDATA[síndrome de distrés respiratorio agudo]]></kwd>
<kwd lng="es"><![CDATA[COVID-19]]></kwd>
<kwd lng="en"><![CDATA[Lung]]></kwd>
<kwd lng="en"><![CDATA[ultrasound]]></kwd>
<kwd lng="en"><![CDATA[phenotypes]]></kwd>
<kwd lng="en"><![CDATA[acute respiratory distress syndrome]]></kwd>
<kwd lng="en"><![CDATA[COVID-19]]></kwd>
<kwd lng="pt"><![CDATA[Ultrassonografia]]></kwd>
<kwd lng="pt"><![CDATA[pulmonar]]></kwd>
<kwd lng="pt"><![CDATA[fenótipos]]></kwd>
<kwd lng="pt"><![CDATA[síndrome da insuficiência respiratória aguda]]></kwd>
<kwd lng="pt"><![CDATA[COVID-19]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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