<?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>S0300-90412018001200769</article-id>
<article-id pub-id-type="doi">10.24245/gom.v86i12.2400</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Valor de la cuenta folicular antral como predictor de éxito en ciclos de fertilización in vitro]]></article-title>
<article-title xml:lang="en"><![CDATA[Value of the antral follicular count as a predictor of success in in vitro fertilization cycles]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez-Aranda]]></surname>
<given-names><![CDATA[Alejandro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Campos-Cañas]]></surname>
<given-names><![CDATA[Jorge Alberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Roque-Sánchez]]></surname>
<given-names><![CDATA[Armando Miguel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López-Rioja]]></surname>
<given-names><![CDATA[Miguel de Jesús]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Astorga-Acevedo]]></surname>
<given-names><![CDATA[Ángel Adrián]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Recio-López]]></surname>
<given-names><![CDATA[Yesenia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Nacional de Perinatología Isidro Espinosa de los Reyes  ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Nacional de Perinatología Isidro Espinosa de los Reyes  ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto Nacional de Perinatología Isidro Espinosa de los Reyes  ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Instituto Nacional de Perinatología Isidro Espinosa de los Reyes  ]]></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>12</numero>
<fpage>769</fpage>
<lpage>778</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0300-90412018001200769&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0300-90412018001200769&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0300-90412018001200769&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  ANTECEDENTES: La asociación entre pruebas de reserva ovárica y respuesta a la estimulación está debidamente establecida aunque su capacidad para predecir embarazo clínico y recién nacido vivo es limitada.  OBJETIVO: Evaluar la utilidad clínica de la cuenta folicular antral para predecir embarazo clínico y recién nacido vivo.  MATERIALES Y MÉTODOS: Estudio de cohorte, retrospectivo, efectuado en el Instituto Nacional de Perinatología, entre 2011 y 2016 en ciclos de fertilización in vitro en fresco. Se incluyeron pacientes con diagnóstico de infertilidad a quienes se efectuó, in vitro, transferencia de embriones en fresco. Variables de estudio: edad, cuenta folicular antral, concentración basal de FSH y cantidad de ovocitos capturados. Se elaboro&#769; un modelo de regresión logística. Para el análisis estadístico se utilizo&#769; el programa Statistic Package for Social Sciences (SPSS). Se considero&#769; significativa la probabilidad de error alfa menor de 5%.  RESULTADOS: Se analizaron 923 ciclos de fertilización in vitro. La cuenta folicular antral tiene predicción para detectar embarazo clínico con un área bajo la curva ROC de 0.59 y para recién nacido vivo de 0.57. El número óptimo con mayor porcentaje de embarazo clínico (9%) y recién nacido vivo (10.4%) tuvo cuenta folicular antral &#8805; 8.  CONCLUSIONES: Cuando la cuenta folicular antral es más o menos mayor de 8 folículos se espera mayor cantidad de embarazos clínicos y de recién nacidos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  BACKGROUND: The association between ovarian reserve test and ovarian response is well established, however, its ability to predict clinical pregnancy and the live birth is limited.  OBJETIVE: Evaluate the clinical usefulness of the antral follicle count (AFC) to predict clinical pregnancy and live newborn.  MATERIALS AND METHODS: Retrospective cohort study was made. In fresh IVF cycles, performed at INPer between 2011-2016. Including patients diagnosed with infertility, who underwent in vitro fertilization with fresh embryo transfer. The study variables were age, antral follicle count, basal FSH concentration and number of oocytes captured. A binary logistic regression model was performed. Statistical Package for Social Sciences (SPSS) was used for the statistical analysis. The probability of error alpha &lt;5% was considered significant.  RESULTS: A total of 923 in vitro fertilization cycles were included. The antral follicle count has a prediction for clinical pregnancy (ABC 0.59) and live birth (ABC 0.57). The optimal cut-off value with the highest percentage of clinical pregnancy (9%) and live birth (10.4%) was presented with a CFA &#8805; 8. A higher pregnancy rate is reported when there is a follicular count above &#8805;8 follicles.  CONCLUSIONS: It is expected the highest number of clinical pregnancy and live birth when the antral follicle count is for &#8805;8 follicles.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Embarazo]]></kwd>
<kwd lng="es"><![CDATA[tasa de embarazo]]></kwd>
<kwd lng="es"><![CDATA[reserva ovárica]]></kwd>
<kwd lng="es"><![CDATA[nacido vivo]]></kwd>
<kwd lng="es"><![CDATA[cuenta folicular antral]]></kwd>
<kwd lng="en"><![CDATA[Pregnancy]]></kwd>
<kwd lng="en"><![CDATA[Pregnancy rate]]></kwd>
<kwd lng="en"><![CDATA[Ovarian reserve]]></kwd>
<kwd lng="en"><![CDATA[Live birth]]></kwd>
<kwd lng="en"><![CDATA[Antral folicle count]]></kwd>
</kwd-group>
</article-meta>
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