<?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>S0300-90412018000700447</article-id>
<article-id pub-id-type="doi">10.24245/gom.v86i7.1828</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Comparación de la presión coloidosmótica plasmática de pacientes con preeclampsia severa a nivel del mar y de la Ciudad de México]]></article-title>
<article-title xml:lang="en"><![CDATA[Comparison of plasma coloidosmotic pressure of patients with severe preeclampsia at sea level and Mexico City]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vázquez-Rodríguez]]></surname>
<given-names><![CDATA[Juan Gustavo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cruz-Martínez]]></surname>
<given-names><![CDATA[Francisco Javier]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez-Tovar]]></surname>
<given-names><![CDATA[Princesa]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lizárraga-Méndez]]></surname>
<given-names><![CDATA[Cynthia Selene]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Victoria-Terán]]></surname>
<given-names><![CDATA[Sonia del Carmen]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Mexicano del Seguro Social Centro Médico Nacional La Raza Hospital de Ginecología y Obstetricia 3]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Mexicano del Seguro Social Hospital General Regional 1 Departamento de Ginecología y Obstetricia]]></institution>
<addr-line><![CDATA[Ciudad Obregón Sonora]]></addr-line>
<country>Mexico</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>7</numero>
<fpage>447</fpage>
<lpage>455</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0300-90412018000700447&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0300-90412018000700447&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0300-90412018000700447&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Objetivo: Comparar la presión coloidosmótica del plasma de pacientes con preeclampsia severa residentes de dos áreas geográficas distintas, una situada a 40 m sobre el nivel del mar y la otra a 2250 m.  Materiales y métodos: Estudio transversal, comparativo y analítico efectuado en pacientes embarazadas, con preeclampsia severa, residentes de la región de Ciudad Obregón, Sonora, México, situada a 40 metros sobre el nivel del mar y enfermas habitantes de la Ciudad de México, que se ubica a 2250 metros sobre el nivel del mar. Se consultaron sus reportes de estudios de laboratorio clínico para calcular la presión coloidosmótica del plasma y compararlos. Para el análisis de los datos se utilizó estadística descriptiva e inferencial (prueba t de Student y el coeficiente de correlación de Pearson) . Fue significativo el valor p &lt; 0.05. Se utilizó el programa estadístico SPS, versión 20.  Resultados: Se estudiaron 372 pacientes. La media de presión coloidosmótica del plasma de las pacientes de Ciudad Obregón fue 18.10 ± 2.18 mmHg (límites 11.88 y 21.80) y 18.93 ± 2.72 mmHg (límites 10.31 y 23.94) de la Ciudad de México, con diferencia significativa (p = 0.0016). La media de albúmina fue 2.49 ± 0.35 vs 2.81 ± 0.44 g/dL (p = 0.0208) y globulinas 2.99 ± 0.57 vs 2.30 ± 0.48 g/dL (p = 0.0118). La correlación de la presión coloidosmótica del plasma vs albúmina para Ciudad Obregón fue de 0.927 y de la Ciudad de México 0.969.  Conclusión: La presión coloidosmótica del plasma de las pacientes con preeclampsia severa de un área geográfica a nivel del mar y de la Ciudad de México fue diferente. Puede ser conveniente efectuar mediciones regionales para establecer su valor acorde con las características de las enfermas y su zona geográfica.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Objective: To compare plasma coloidosmotic pressure of patients with severe preeclampsia at sea level with Mexico City.  Materials and methods: Cross-sectional study that included 372 pregnant patients with severe preeclampsia: 172 residents of the area of Ciudad Obregon, Sonora, Mexico, located at 40 meters above sea level, and 200 patients living in Mexico City, at an altitude of 2,250 meters. Clinical laboratory results were consulted to calculate plasma coloidosmotic pressure and perform comparison. For statistical analysis, descriptive and inferential statistics (Student t test, Pearson correlation coefficient) were used. Value of p &lt; 0.05 was considered significant. Statistical program Spreeclampsia severaS version 20 was used.  Results: The mean plasma coloidosmotic pressure of patients of Ciudad Obregon was 18.10 ± 2.18 mmHg (range 11.88 to 21.80), and in patients from Mexico City was 18.93 ± 2.72 mmHg (range 10.31 to 23.94), with significant difference (p = 0.0016). Mean albumin was 2.49 ± 0.35 vs 2.81 ± 0.44 g/dL (p = 0.0208) and globulin 2.99 ± 0.57 vs 2.30 ± 0.48 g/dL (p = 0.0118). Correlation plasma coloidosmotic pressure vs albumin was Ciudad Obregon 0.927 and Mexico City 0.969.  Conclusion: Plasma coloidosmotic pressure of pregnant patients with severe preeclampsia in a geographic area at sea level with Mexico City was different. It would be convenient to perform regional measurements of plasma coloidosmotic pressure to establish its value according to the characteristics of both patient and geographic area.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Presión coloidosmótica del plasma]]></kwd>
<kwd lng="es"><![CDATA[preeclampsia severa]]></kwd>
<kwd lng="es"><![CDATA[embarazo de alto riesgo]]></kwd>
<kwd lng="es"><![CDATA[altitud]]></kwd>
<kwd lng="es"><![CDATA[embarazo]]></kwd>
<kwd lng="en"><![CDATA[Plasma coloidosmotic pressure]]></kwd>
<kwd lng="en"><![CDATA[Severe preeclampsia]]></kwd>
<kwd lng="en"><![CDATA[High risk pregnancy]]></kwd>
<kwd lng="en"><![CDATA[Altitude]]></kwd>
<kwd lng="en"><![CDATA[Pregnancy]]></kwd>
</kwd-group>
</article-meta>
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