<?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>S0300-90412017000800519</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Cambios en la estática fetal y factores predisponentes durante el embarazo]]></article-title>
<article-title xml:lang="en"><![CDATA[Changes in fetal static and their predisposition to risk factors throughout of pregnancy]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Panduro-Barón]]></surname>
<given-names><![CDATA[JG]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Panduro-Moore]]></surname>
<given-names><![CDATA[EG]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez-Molina]]></surname>
<given-names><![CDATA[JJ]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rosas-Gómez]]></surname>
<given-names><![CDATA[ESM]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Peraza-Martínez]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Quezada-Figueroa]]></surname>
<given-names><![CDATA[NA]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Civil de Guadalajara Dr. Juan I. Menchaca Unidad de Medicina Materno Fetal ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital Civil de Guadalajara Dr. Juan I. Menchaca Especialidad de Medicina Materno Fetal ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<aff id="Af3">
<institution><![CDATA[,Hospital Civil de Guadalajara Dr. Juan I. Menchaca Especialidad de Pediatría Médica ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad de Guadalajara Centro Universitario de Ciencias de la Salud ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Universidad de Guadalajara Centro Universitario de Ciencias de la Salud ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af6">
<institution><![CDATA[,Universidad de Guadalajara Centro Universitario de Ciencias de la Salud Departamento de Clínicas de la Reproducción Humana, Crecimiento y Desarrollo Infantil]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af7">
<institution><![CDATA[,Universidad de Guadalajara Centro Universitario de Ciencias de la Salud Departamento de Clínicas de la Reproducción Humana, Crecimiento y Desarrollo Infantil]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2017</year>
</pub-date>
<volume>85</volume>
<numero>8</numero>
<fpage>519</fpage>
<lpage>524</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0300-90412017000800519&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0300-90412017000800519&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0300-90412017000800519&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  ANTECEDENTES: durante el embarazo el feto adopta diversas posturas en relación con su situación, presentación y posición, que hacen que la estática fetal sea cambiante.  OBJETIVO: determinar la estática fetal durante el embarazo mediante la frecuencia de la situación, presentación y posición fetales, e identificar los factores predisponentes que condicionan estos cambios.  MATERIALES Y MÉTODOS:  estudio transversal y analítico, del que se evaluaron los ultrasonidos efectuados en el Hospital Civil de Guadalajara Dr. Juan I. Menchaca, para valorar la estática fetal (situación, presentación y posición) y correlacionarlos con la edad materna, antecedentes obstétricos y localización placentaria. Para identificar los factores implicados en la estática fetal se utilizaron pruebas estadísticas como: media, X2 y razón de momios (RM).  RESULTADOS: de 7500 ultrasonidos efectuados, la presentación fetal fue cefálica en 6,045 fetos, pélvica en 1177 y transversa en 278. Se registraron 3981 fetos en posición dorso-izquierda 3,026 en dorso-derecha y 493 en otros tipos. La placenta se visualizó en la cara anterior del útero en 3626, cara posterior en 2774, fúndica en 581, placenta previa en 89 y otros sitios en 430 casos. La edad gestacional promedio fue de 31 semanas. Al analizar los resultados se encontró que a menor edad gestacional mayor estática fetal anormal en mujeres iguales o mayores de 35 años de edad, con tres o más embarazos o antecedente de placenta previa (p&lt;0.05).  CONCLUSIONES: la edad materna igual o mayor de 35 años, edad gestacional pretérmino, multiparidad (&#8805; 3 nacimientos) y placenta previa se correlacionan con estática fetal anormal.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  BACKGROUND: The fetus in the course of pregnancy adopts different positions regarding its situation, presentation and position, making the fetal static of the fetus is changing.  OBJECTIVE: To know the fetal static throughout the pregnancy through the frequency of the fetal situation, presentation and position, identifying the factors that condition these changes.  MATERIALS AND METHODS:  An analytical cross-sectional study of 7500 ultrasounds performed at the Hospital Civil of Guadalajara Dr. Juan J. Menchaca, assessing fetal static (status, position or back and presentation), analyzing maternal age, obstetric history and placental location. It was used to identify possible factors that influence fetal static the mean, X2 and odds ratio (OR).  RESULTS: The fetal presentation was cephalic in 6,045 fetuses, pelvic 1177 and transverse 278. In relation to the back, were left 3,981, right in 3026 and other types 493. The placenta was reported on the anterior face of uterus 3626, posterior face 2774, fundic 581, previous placentas 89 and other sites 430. The average gestational age was 31 weeks. When analyzing the results we found that at lower gestational age abnormal fetal statics were more frequent, as in women older than 35 years, three or more pregnancies and placenta previa history (p&lt;0.05).  CONCLUSIONS: Maternal age &#8805; 35 years, preterm gestational age, multiparity (&#8805; 3 births) and the presence of a placenta previa are associated with a higher frequency of abnormal fetal static.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[estática fetal]]></kwd>
<kwd lng="es"><![CDATA[posiciones fetales]]></kwd>
<kwd lng="en"><![CDATA[Fetal static]]></kwd>
<kwd lng="en"><![CDATA[Fetal positions]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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