<?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>S2448-89092021000500250</article-id>
<article-id pub-id-type="doi">10.35366/102353</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Predicción de fracaso de las puntas nasales de alto flujo con la escala HACOR, en la insuficiencia respiratoria aguda de pacientes con SARS-CoV-2]]></article-title>
<article-title xml:lang="en"><![CDATA[Prediction of failure of the high-flow nasal tips with the HACOR scale, in acute respiratory insufficiency in patients with SARS-CoV-2]]></article-title>
<article-title xml:lang="pt"><![CDATA[Previsão de falha das pontas nasais de alto fluxo com a escala HACOR, na insuficiência respiratória aguda de pacientes com SARS-CoV-2]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Salvador-Ibarra]]></surname>
<given-names><![CDATA[Ibzan Jahzeel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pizaña Dávila]]></surname>
<given-names><![CDATA[Alejandro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Ángeles Mocel  ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>10</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>10</month>
<year>2021</year>
</pub-date>
<volume>35</volume>
<numero>5</numero>
<fpage>250</fpage>
<lpage>255</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2448-89092021000500250&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2448-89092021000500250&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2448-89092021000500250&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: La insuficiencia respiratoria hipoxémica aguda (IRHA) es una de las principales causas de ingreso en la Unidad de Terapia Intensiva en los pacientes adultos, alrededor de 40% de estos pacientes ameritan intubación endotraqueal. La escala HACOR fue diseñada y validada como una puntuación de predicción clínica para el fracaso de la ventilación no invasiva (VNI) en pacientes con IRHA de diferentes etiologías.  Objetivo:  Analizar la capacidad predictiva de la escala HACOR en relación al fracaso de las puntas nasales de alto flujo (PNAF).  Material y métodos:  Se realizó un estudio retrospectivo, observacional en la Terapia Intensiva del Hospital Ángeles Mocel, las PNAF se iniciaron cuando el paciente presentaba IRHA, se calculó la escala HACOR a la hora y a las dos horas de colocación de PNAF, la capacidad de predecir el fracaso de las PNAF de la escala HACOR se determinó calculando el área bajo la curva de «característica operativa del receptor» (ROC).  Resultados:  La escala HACOR con mayor poder discriminatorio se obtuvo a las dos horas de inicio de las PNAF con un punto de corte de 5 puntos con un área bajo la curva (AUC): 0.82 (IC 95% 0.67-0.98), se obtuvo una sensibilidad 84% IC 95% (56.6-89.9%), especificidad 81% IC 95% (40.9-92.9%).  Conclusiones:  Un puntaje mayor o igual a 5 puntos en la escala HACOR predice fracaso de las PNAF y mayor mortalidad con una sensibilidad y especificidad mayor de 80% en los pacientes con neumonía por COVID-19.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: Acute hypoxemic respiratory failure (AHRF) is one of the main causes of admission to the intensive care unit in adult patients, around 40% of these patients require endotracheal intubation. The HACOR scale was designed and validated as a clinical prediction score for non-invasive ventilation (NIV) failure in patients with HAI of different etiologies.  Objective:  To analyze the predictive capacity of the HACOR scale in relation to the failure of the PNAF.  Material and methods:  A retrospective, observational study was carried out in the Intensive Care Unit at Hospital Ángeles Mocel, the PNAF was started when the patient had AHRF, the HACOR scale was calculated at one hour and 2 hours after the placement of the PNAF, the ability to predict HACOR scale PNAF failure was determined by calculating the area under the «receiver operating characteristic» (ROC) curve.  Results:  The HACOR scale with the highest discriminatory power was obtained 2 hours after the start of the PNAF with a cut-off point of 5 points with an area under the curve (AUC): 0.82 (CI 95% 0.67-0.98), it was obtained a sensitivity 84% CI 95% (56.6-89.9%), specificity 81% CI 95% (40.9-92.9%).  Conclusions:  A score greater than or equal to 5 points on the HACOR scale predicts failure of the PNAF and higher mortality with a sensitivity and specificity greater than 80% in patients with COVID-19 pneumonia.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo: A insuficiência respiratória hipoxêmica aguda (IRHA) é uma das principais causas de admissão em unidade de Terapia Intensiva em Pacientes Adultos, cerca de 40% desses pacientes requerem intubação endotraqueal. A escala HACOR foi desenhada e validada como um escore de predição clínica para falha da ventilação não invasiva (VNI) em pacientes com IRHA de diferentes etiologias.  Objetivo:  Analisar a capacidade preditiva da escala HACOR em relação à falha das PNAF.  Material e métodos:  Foi realizado um estudo retrospectivo e observacional na Unidade de Terapia Intensiva do Hospital Ángeles Mocel, a PNAF foi iniciada quando o paciente tinha IRHA, a escala HACOR foi calculada uma hora e 2 horas após a colocação da PNAF, a capacidade de previsão do fracasso das PNAF da escala HACOR foi determinada pelo cálculo da área sob a curva «receiver operating characteristics» (ROC).  Resultados:  A escala HACOR com maior poder discriminatório foi obtida 2 horas após o início das PNAF com ponto de corte de 5 pontos com área sob a curva (AUC): 0.82 (IC 95% 0.67-0.98), foi obtida uma sensibilidade de 84% IC 95% (56.6%-89.9%), especificidade 81% IC 95% (40.9%-92.9%).  Conclusões:  Uma pontuação maior ou igual a 5 pontos na escala HACOR prediz falha das PNAF e maior mortalidade com sensibilidade e especificidade maior à 80% em pacientes com pneumonia COVID-19.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Insuficiencia respiratoria aguda]]></kwd>
<kwd lng="es"><![CDATA[puntas nasales de alto flujo]]></kwd>
<kwd lng="es"><![CDATA[escala HACOR]]></kwd>
<kwd lng="es"><![CDATA[éxito]]></kwd>
<kwd lng="es"><![CDATA[fracaso]]></kwd>
<kwd lng="es"><![CDATA[ventilación mecánica]]></kwd>
<kwd lng="en"><![CDATA[Acute respiratory failure]]></kwd>
<kwd lng="en"><![CDATA[high-flow nasal tips]]></kwd>
<kwd lng="en"><![CDATA[HACOR scale]]></kwd>
<kwd lng="en"><![CDATA[success]]></kwd>
<kwd lng="en"><![CDATA[failure]]></kwd>
<kwd lng="en"><![CDATA[mechanical ventilation]]></kwd>
<kwd lng="pt"><![CDATA[Insuficiência respiratória aguda]]></kwd>
<kwd lng="pt"><![CDATA[pontas nasais de alto fluxo]]></kwd>
<kwd lng="pt"><![CDATA[escala HACOR]]></kwd>
<kwd lng="pt"><![CDATA[êxito]]></kwd>
<kwd lng="pt"><![CDATA[falha]]></kwd>
<kwd lng="pt"><![CDATA[ventilação mecânica]]></kwd>
</kwd-group>
</article-meta>
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