<?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>0300-9041</journal-id>
<journal-title><![CDATA[Ginecología y obstetricia de México]]></journal-title>
<abbrev-journal-title><![CDATA[Ginecol. obstet. Méx.]]></abbrev-journal-title>
<issn>0300-9041</issn>
<publisher>
<publisher-name><![CDATA[Federación Mexicana de Colegios de Obstetricia y Ginecología A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0300-90412018001000665</article-id>
<article-id pub-id-type="doi">10.24245/gom.v86i10.2346</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Utilidad del índice de choque como valor predictivo para el requerimiento de trasfusión en hemorragia obstétrica]]></article-title>
<article-title xml:lang="en"><![CDATA[Utility of the shock index in obstetric hemorrhage as a predictive value for the transfusion requirement]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Guerrero-De León]]></surname>
<given-names><![CDATA[María Cristina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Escárcega-Ramos]]></surname>
<given-names><![CDATA[Luis Raúl]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Días]]></surname>
<given-names><![CDATA[Óscar Armando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Palomares-Leal]]></surname>
<given-names><![CDATA[Alain]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gutiérrez-Aguirre]]></surname>
<given-names><![CDATA[César Homero]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital de Ginecología y Obstetricia Dr. Ignacio Morones Prieto (IMSS) Unidad Médica de Alta Especialidad 23 ]]></institution>
<addr-line><![CDATA[Monterrey NL]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital de Ginecología y Obstetricia Dr. Ignacio Morones Prieto (IMSS) Unidad Médica de Alta Especialidad 23 ]]></institution>
<addr-line><![CDATA[Monterrey NL]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Hospital de Ginecología y Obstetricia Dr. Ignacio Morones Prieto (IMSS) Unidad Médica de Alta Especialidad 23 ]]></institution>
<addr-line><![CDATA[Monterrey NL]]></addr-line>
<country>México</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Hospital Universitario Dr. José Eleuterio González Departamento de Medicina Interna ]]></institution>
<addr-line><![CDATA[Monterrey NL]]></addr-line>
<country>México</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Hospital Universitario Dr. José Eleuterio González Departamento de Medicina Interna ]]></institution>
<addr-line><![CDATA[Monterrey NL]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2018</year>
</pub-date>
<volume>86</volume>
<numero>10</numero>
<fpage>665</fpage>
<lpage>674</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0300-90412018001000665&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0300-90412018001000665&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0300-90412018001000665&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Objetivo:  Determinar el punto de corte del índice de choque obstétrico asociado con trasfusión masiva en mujeres con hemorragia obstétrica.  Materiales y métodos:  Estudio retrospectivo, transversal y analítico efectuado con base en la revisión de los expedientes clínicos de pacientes que ingresaron a la unidad de cuidados intensivos. Cálculo del índice de choque obstétrico al momento del diagnóstico de hemorragia obstétrica. Análisis de los signos vitales, gasometría, tipo de componentes sanguíneos trasfundidos y cantidad de líquidos administrados.  Resultados:  Se incluyeron 105 pacientes con hemorragia obstétrica; en 65 (61%) el resultado del índice de choque fue &#8805; 0.9, de éstas 38 (58%) requirieron trasfusión masiva. El índice de choque obstétrico &#8805; 0.9 se asoció, significativamente, con trasfusión masiva (p &lt; 0.001). La pérdida sanguínea fue de 3000 mL (RIC 2000 mL) en pacientes con índice de choque obstétrico &#8805; 0.9 vs 2500 mL (RIC 1000 mL) en pacientes con índice de choque obstétrico &lt; 0.9 (p = 0.04). Las mujeres con índice de choque obstétrico &#8805; 0.9 mostraron mayor requerimiento de trasfusión de concentrados globulares (p = 0.03) y plaquetarios (p = 0.01).  Conclusiones:  Un índice de choque obstétrico &#8805; 0.9 se asoció con altos requerimientos de trasfusión sanguínea y mayor incidencia de eventos adversos graves, por lo que se recomienda este valor como el punto de corte para predicción de la necesidad de trasfusión masiva.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Objective:  To determine the cut-off point of obstetric shock index associated with massive transfusion in women with obstetric hemorrhage.  Materials and methods:  We designed a cross-sectional study in women who were admitted to the intensive care unit. The obstetric shock index was calculated at the time of the diagnosis of obstetric hemorrhage. We analyzed vital signs, arterial blood gas, loss of blood, fluid replacement and transfused blood products.  Results:  One hundred and five women with obstetric bleeding were included, in 65 (61%) the obstetric shock index was &#8805; 0.9, of whom 38 (58%) needed massive transfusion. Obstetric shock index &#8805; 0.9 was significantly associated with massive transfusion (p &lt; 0.001). The blood loss was of 3000 mL (RIC 2000 mL) in the patients with obstetric shock index &#8805; 0.9 compared to 2500 mL (RIC 1000 mL) in patients with obstetric shock index &lt; 0.9 (p = 0.04). Women with obstetric shock index &#8805; 0.9 showed more significant requirement of transfusion of package red blood (p = 0.03) and platelets (p = 0.01).  Conclusions:  An obstetric shock index &#8805;0.9 was associated with high transfusión requirements and a higher incidence of serious adverse events, this value is recommended as the cut-off point for predicting the need for massive transfusion.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Choque]]></kwd>
<kwd lng="es"><![CDATA[frecuencia cardiaca]]></kwd>
<kwd lng="es"><![CDATA[presión arterial sistólica]]></kwd>
<kwd lng="es"><![CDATA[trasfusión]]></kwd>
<kwd lng="es"><![CDATA[hemorragia obstétrica]]></kwd>
<kwd lng="es"><![CDATA[trasfusión masiva]]></kwd>
<kwd lng="es"><![CDATA[índice de choque obstétrico]]></kwd>
<kwd lng="en"><![CDATA[Shock]]></kwd>
<kwd lng="en"><![CDATA[Heart rate]]></kwd>
<kwd lng="en"><![CDATA[Systolic blood pressure]]></kwd>
<kwd lng="en"><![CDATA[Transfusion]]></kwd>
<kwd lng="en"><![CDATA[Obstetric hemorrhage]]></kwd>
<kwd lng="en"><![CDATA[Massive Transfusion]]></kwd>
<kwd lng="en"><![CDATA[Obstetric shock index]]></kwd>
</kwd-group>
</article-meta>
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