<?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>S0300-90412018000800495</article-id>
<article-id pub-id-type="doi">10.24245/gom.v86i8.1507</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Comparación de la eficacia de la &#945;-microglobulina-1 placentaria vs cristalografía en factores que modifican el resultado]]></article-title>
<article-title xml:lang="en"><![CDATA[Effectiveness comparison of &#945;-microglobulin-1 placentary vs crystallography in the presence of factors that modify the result]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Peña-Vega]]></surname>
<given-names><![CDATA[Cynthia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zavala-Barrios]]></surname>
<given-names><![CDATA[Berenice]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Galván-Luna]]></surname>
<given-names><![CDATA[Adriana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Briones-Garduño]]></surname>
<given-names><![CDATA[Jesús Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital General de México Dr. Eduardo Liceaga  ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital General de México Dr. Eduardo Liceaga  ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Hospital General de México Dr. Eduardo Liceaga Unidad de Ginecología y Obstetricia ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></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>8</numero>
<fpage>495</fpage>
<lpage>501</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0300-90412018000800495&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0300-90412018000800495&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0300-90412018000800495&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Objetivo: Comparar la eficacia de la prueba &#945;-microglobulina-1 placentaria (AmniSure®) versus cristalografía como método diagnóstico de ruptura de membranas en situaciones clínicas que modifican el resultado debido al gel lubricante, vaginosis bacteriana, sangre y escurrimiento genital anormal.  Materiales y métodos: Estudio prospectivo, cuasi experimental y exploratorio, efectuado en pacientes embarazadas atendidas en el Hospital General de México, por sospecha de ruptura prematura de membranas. Criterios de inclusión: sospecha de ruptura prematura de membranas, independientemente de las semanas de embarazo, ruptura de membranas acompañada de sangrado, cervicovaginitis, hidrorrea o corioamnioitis; haber sido exploradas con gel lubricante y referir salida de líquido transvaginal.  Resultados: Se efectuaron 20 pruebas con &#945;-microglobulina-1 placentaria a la par de 20 cristalografías. Se descartó una prueba de &#945;-microglobulina-1 por mala técnica de uso; se encontró una sensibilidad de 85.7% y especificidad de 100%. La sensibilidad de las cristalografías fue de 78.5% y especificidad de 100%.  Conclusiones: Al comparar la efectividad de la &#945;-microglobulina-1 placentaria versus la cristalografía se encontró mayor sensibilidad con la primera. Por tanto, es un método con mayor efectividad para detectar ruptura de membranas, independientemente de la edad gestacional o la coexistencia de factores que modifican el resultado. Ambas pruebas reportaron 100% de especificidad.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Objective: To compare the efficacy of the &#945;-microglobulin-1 placental test (AmniSure®) against crystallography as a diagnostic method for premature rupture of membranes in clinical situations involving impaired outcome such as lubricating gel, bacterial vaginosis, blood and abnormal genital drainage.  Materials and methods: A prospective, quasi- experimental and exploratory study was performed on 20 patients admitted to the Hospital General de México, who presented suspicion of premature rupture of membranes (PRM) and met the inclusion criteria: pregnant patients who presented suspicion of PRM, regardless of gestational age, patients with PRM accompanied by bleeding, cervicovaginitis, hydrorrhea and chorioamnioitis, who were reviewed with lubricating gel as well as those who referred transvaginal fluid outflow.  Results: Twenty tests were performed with AmniSure® in addition to 20 crystallographies. An Amnisure test was discarded for poor technique of use, finding a sensitivity of 85.7% with a specificity of 100% and in the case of crystallography, the sensitivity was 78.57%, with a specificity of 100%  Conclusions: When comparing the effectiveness of AmniSure® with crystallography for the diagnosis of PRM in the presence of factors that can modify the result, 7.2% greater Amnisure sensitivity was found on crystallography and both tests showed 100% specificity.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Placenta]]></kwd>
<kwd lng="es"><![CDATA[prematura]]></kwd>
<kwd lng="es"><![CDATA[vaginosis bacteriana]]></kwd>
<kwd lng="es"><![CDATA[hidrorrea]]></kwd>
<kwd lng="es"><![CDATA[&#945;-microglobulina-1 placentaria]]></kwd>
<kwd lng="es"><![CDATA[cristalografía]]></kwd>
<kwd lng="en"><![CDATA[Placental]]></kwd>
<kwd lng="en"><![CDATA[Premature]]></kwd>
<kwd lng="en"><![CDATA[Bacterial vaginosis]]></kwd>
<kwd lng="en"><![CDATA[Genital drainage]]></kwd>
<kwd lng="en"><![CDATA[&#945;-microglobulin-1 placentary]]></kwd>
<kwd lng="en"><![CDATA[Crystallography]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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