<?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>0016-3813</journal-id>
<journal-title><![CDATA[Gaceta médica de México]]></journal-title>
<abbrev-journal-title><![CDATA[Gac. Méd. Méx]]></abbrev-journal-title>
<issn>0016-3813</issn>
<publisher>
<publisher-name><![CDATA[Academia Nacional de Medicina de México A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0016-38132020000200157</article-id>
<article-id pub-id-type="doi">10.24875/gmm.20005370</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Complicaciones en embarazos logrados por reproducción asistida]]></article-title>
<article-title xml:lang="en"><![CDATA[Complications in pregnancies achieved by assisted reproduction]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Madrazo-Cabo]]></surname>
<given-names><![CDATA[José M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[León-Durán]]></surname>
<given-names><![CDATA[Grecia A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Oliveros-Montiel]]></surname>
<given-names><![CDATA[Adriana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ledesma-Montes]]></surname>
<given-names><![CDATA[José A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Morales-González]]></surname>
<given-names><![CDATA[Iván D.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sedeño-Monge]]></surname>
<given-names><![CDATA[Virginia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Popular Autónoma del Estado de Puebla Facultad de Medicina Decanato de Ciencias de la Salud]]></institution>
<addr-line><![CDATA[Puebla ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2020</year>
</pub-date>
<volume>156</volume>
<numero>2</numero>
<fpage>157</fpage>
<lpage>164</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0016-38132020000200157&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0016-38132020000200157&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0016-38132020000200157&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción: Se ha documentado que los embarazos por técnicas de reproducción asistida (TRA) presentan mayor riesgo de efectos adversos.  Objetivo: Proporcionar evidencia de las complicaciones obstétricas y perinatales asociadas a concepciones mediante TRA versus embarazos espontáneos.  Método: Revisión de artículos originales publicados entre 2010 y 2018, que abordan complicaciones obstétricas y perinatales de mayor frecuencia en embarazos por fertilización in vitro (FIV) e inyección intracitoplasmática de espermatozoides (ICSI) comparados con concepciones espontáneas.  Resultados: Se incluyeron 37 artículos originales, 26 de cohortes y 11 de casos y controles. Las concepciones por FIV e ICSI se asociaron con más complicaciones obstétricas y perinatales como bajo peso al nacimiento, prematuridad, menor peso para la edad gestacional, ingreso a la unidad de cuidados intensivos neonatales, malformaciones congénitas, cesárea, ruptura prematura de membranas, entre otras.  Conclusiones: Las concepciones por TRA se asocian con mayor riesgo de complicaciones obstétricas y perinatales en comparación con las espontáneas. Es necesario realizar estudios adicionales que determinen qué aspectos derivan en mayor riesgo.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction: Pregnancies resulting from assisted reproductive technologies (ART) have been documented to have a higher risk of adverse effects.  Objective: To provide evidence on obstetric and perinatal complications associated with conceptions by ART versus spontaneous pregnancies.  Method: Comprehensive review of original articles published between 2010 and 2018 addressing the most common obstetric and perinatal complications in pregnancies resulting from in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI) in comparison with spontaneous conceptions.  Results: Thirty-seven original articles, which reported on 26 cohort studies and 11 case-control trials, were included. IVF and ICSI conceptions were associated with a larger number of obstetric and perinatal complications such as low birth weight, prematurity, low weight for gestational age, admission to the neonatal intensive care unit, congenital malformations, C-section and premature rupture of membranes, among others.  Conclusions: Pregnancies by ART are associated with an increased risk of obstetric and perinatal complications in comparison with spontaneous conceptions. Further research is needed to determine which aspects result in higher risk.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Reproducción humana asistida]]></kwd>
<kwd lng="es"><![CDATA[Fertilización in vitro]]></kwd>
<kwd lng="es"><![CDATA[Inyección intracitoplasmática de espermatozoides]]></kwd>
<kwd lng="en"><![CDATA[Assisted human reproduction]]></kwd>
<kwd lng="en"><![CDATA[In vitro fertilization]]></kwd>
<kwd lng="en"><![CDATA[Intracytoplasmic sperm injection]]></kwd>
</kwd-group>
</article-meta>
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