<?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>S0300-90412023000700005</article-id>
<article-id pub-id-type="doi">10.24245/gom.v91i7.8735</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Factores asociados con el éxito de una prueba de trabajo de parto después de cesárea (TOLAC) sin antecedente de parto]]></article-title>
<article-title xml:lang="en"><![CDATA[Factors associated with the success of a trial of labor after cesarean section (TOLAC) without a history of vaginal delivery]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez Villafaña]]></surname>
<given-names><![CDATA[Enrique]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zetuna Bagatella]]></surname>
<given-names><![CDATA[Jorge Zarif]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Quesnel García Benítez]]></surname>
<given-names><![CDATA[Carlos Alfredo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Ángeles Lomas  ]]></institution>
<addr-line><![CDATA[Ciudad de México. ]]></addr-line>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital Ángeles Lomas  ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2023</year>
</pub-date>
<volume>91</volume>
<numero>7</numero>
<fpage>493</fpage>
<lpage>498</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0300-90412023000700005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0300-90412023000700005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0300-90412023000700005&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  OBJETIVO:  Determinar los factores asociados con una prueba de trabajo de parto después de una cesárea exitosa en mujeres sin antecedente de parto previo.  MATERIALES Y MÉTODOS:  Estudio observacional de casos y controles, longitudinal, retrospectivo y analítico efectuado en pacientes atendidas entre el 2017 y 2020 en el Hospital Ángeles Lomas, con embarazo único de más de 37 semanas, con una prueba de trabajo de parto, con una cesárea previa y sin parto previo. Se compararon las variables independientes entre el grupo que logró una prueba exitosa de trabajo de parto después de cesárea con las del grupo con prueba fallida. Para el análisis estadístico se utilizó el programa SPSS de IBM, versión 21. Todas las variables categóricas se expresan en frecuencias y porcentajes.  RESULTADOS:  Se incluyeron 135 pacientes con prueba de trabajo de parto después de cesárea de las que 65 (48.1%) tuvieron parto (prueba exitosa) y 70 (51.8%) cesárea (prueba fallida). Hubo una mayor proporción de trabajo de parto espontáneo en el grupo con prueba exitosa en comparación con el grupo con prueba fallida (66.2% en comparación con 37.1%). No hubo diferencias significativas en cuanto a la conducción del trabajo de parto, integridad de membranas amnióticas al ingreso, horas de trabajo de parto y peso al nacer.  CONCLUSIONES:  Un índice de masa corporal menor, un trabajo de parto espontáneo y una mayor dilatación al ingreso se asociaron, significativamente, con una prueba exitosa de trabajo de parto después de cesárea. La integridad de las membranas, la duración de la prueba y el peso al nacer no tuvieron diferencias significativas entre los grupos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  OBJECTIVE:  To determine the factors associated with a trial of labor after a successful cesarean section in women with no history of previous delivery.  MATERIALS AND METHODS:  Observational case-control, longitudinal, retrospective, analytical, retrospective study performed in patient attended between 2017 and 2020 at Hospital Ángeles Lomas, with a singleton pregnancy of more than 37 weeks, with a trial of labor, with a previous cesarean section and no history of previous delivery. The independent variables were compared between the group that achieved a successful trial of labor after cesarean section with those of the group with failed trial. For statistical analysis, the IBM SPSS program, version 21, was used. All categorical variables are expressed in frequencies and percentages.  RESULTS:  We included 135 patients with trial of labor after cesarean section of whom 65 (48.1%) had labor (successful trial) and 70 (51.8%) had cesarean section (failed trial). There was a higher proportion of spontaneous labor in the successful trial group compared to the failed trial group (66.2% compared to 37.1%). There were no significant differences in labor conduction, amniotic membrane integrity on admission, hours of labor, and birth weight.  CONCLUSIONS:  Lower body mass index, spontaneous labor, and greater dilation on admission were significantly associated with a successful trial of labor after cesarean section. Membrane integrity, length of trial, and birth weight had no significant differences between groups.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Trabajo de parto]]></kwd>
<kwd lng="es"><![CDATA[cesárea]]></kwd>
<kwd lng="es"><![CDATA[membranas amnióticas]]></kwd>
<kwd lng="es"><![CDATA[índice de masa corporal]]></kwd>
<kwd lng="es"><![CDATA[dilatación]]></kwd>
<kwd lng="en"><![CDATA[Trial labor]]></kwd>
<kwd lng="en"><![CDATA[Cesarean section]]></kwd>
<kwd lng="en"><![CDATA[Amniotic membrane]]></kwd>
<kwd lng="en"><![CDATA[Body mass index]]></kwd>
<kwd lng="en"><![CDATA[Dilatation]]></kwd>
</kwd-group>
</article-meta>
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<given-names><![CDATA[X]]></given-names>
</name>
<name>
<surname><![CDATA[Zhou]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[J]]></given-names>
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<article-title xml:lang=""><![CDATA[Outcomes and risk factors for failed trial of labor after cesarean delivery (TOLAC) in women with one previous cesarean section a Chinese population-based study]]></article-title>
<source><![CDATA[BMC Pregnancy Childbirth]]></source>
<year>2022</year>
<volume>22</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>1-6</page-range></nlm-citation>
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</back>
</article>
