<?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>0026-1742</journal-id>
<journal-title><![CDATA[Revista de la Facultad de Medicina (México)]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Fac. Med. (Méx.)]]></abbrev-journal-title>
<issn>0026-1742</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Facultad de Medicina]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0026-17422018000200016</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Embarazo heterotópico con las nuevas técnicas de reproducción asistida. Reporte de un caso]]></article-title>
<article-title xml:lang="en"><![CDATA[Heterotopic pregnancy with the new techniques of assisted reproduction. Case report]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Barrón Vallejo]]></surname>
<given-names><![CDATA[Jesús]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Muñoz Hernández]]></surname>
<given-names><![CDATA[Eduardo Vladimir]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández]]></surname>
<given-names><![CDATA[Guillermo Amador]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rivera Venegas]]></surname>
<given-names><![CDATA[Jocelyn]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Heras Lorenzana]]></surname>
<given-names><![CDATA[Jesús Roberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Politécnico Nacional Escuela Superior de Medicina ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Reproducción Humana, S.C.  ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2018</year>
</pub-date>
<volume>61</volume>
<numero>2</numero>
<fpage>16</fpage>
<lpage>19</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0026-17422018000200016&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0026-17422018000200016&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0026-17422018000200016&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Mujer infértil, de 39 años, con diagnóstico de disminución de la reserva ovárica. Tenía 4 intentos previos de fertilización in vitro, sin éxito. Se le realizó fertilización in vitro con donación de óvulos. Fueron transferidos 2 embriones, y la paciente resultó embarazada. Dos semanas después se efectuó un ultrasonido vaginal y se encontró un saco gestacional intrauterino, con embrión y actividad cardiaca. El embarazo evolucionó bien hasta 3 semanas después de la prueba de embarazo, cuando presentó dolor en la fosa iliaca izquierda. Al revisarla se encontró resistencia muscular y rebote en la zona referida. Se efectuó un ultrasonido vaginal y se encontró un feto intrauterino con actividad cardiaca y embarazo ectópico tubario izquierdo. A la paciente se le practicó una laparotomía con incisión Pfannenstiel y se le realizó una salpingectomía izquierda. Después de la cirugía, fue tratada con inhibidores de las contracciones uterinas. El embarazo evolucionó satisfactoriamente hasta la semana 35, cuando presentó ruptura prematura de membranas. Se le realizó una cesárea y se obtuvo un producto masculino que pesó 2,500 g. El recién nacido desarrolló síndrome de dificultad respiratoria leve e hipertensión de la arteria pulmonar, que fueron tratados con agente surfactante y sildenafil; se le egresó en buenas condiciones.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract We present the case of a 39-year-old infertile woman with the diagnosis of diminished ovarian reserve and a history of four previous attempts of in vitro fertilization, which were unsuccessful. She was treated by means of in vitro fertilization with oocyte donation, two embryos being transferred. Two weeks after embryo transfer, the pregnancy test was positive. Two weeks later a vaginal ultrasound was performed, finding an intrauterine gestational sac, within which an embryo with cardiac beat was detected. The pregnancy had a normal evolution until three weeks after the pregnancy test when the patient presented with left-sided lower abdominal pain. On examination, guarding and rebound signs in the left iliac fossa were positive. A vaginal ultrasound was performed, encountering both an intrauterine fetus with cardiac beat and a left tubal ectopic pregnancy. The patient was treated by means of Pfannenstiel incision laparotomy with a left salpingectomy. After surgery, the patient was treated with uterine contractility inhibitors. The pregnancy progressed without complications until the thirty-fifth week, when the patient presented premature rupture of membranes. A cesarean section was performed obtaining a live male, weighing 2500g. The newborn developed mild respiratory distress and pulmonary artery hypertension, for which a surfactant agent and sildenafil were administered. He was deemed healthy and egressed.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Infertilidad]]></kwd>
<kwd lng="es"><![CDATA[embarazo heterotópico]]></kwd>
<kwd lng="es"><![CDATA[reproducción asistida]]></kwd>
<kwd lng="en"><![CDATA[Infertility]]></kwd>
<kwd lng="en"><![CDATA[heterotopic pregnancy]]></kwd>
<kwd lng="en"><![CDATA[assisted reproduction]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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