<?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>1405-9940</journal-id>
<journal-title><![CDATA[Archivos de cardiología de México]]></journal-title>
<abbrev-journal-title><![CDATA[Arch. Cardiol. Méx.]]></abbrev-journal-title>
<issn>1405-9940</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Cardiología Ignacio Chávez]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1405-99402021000300289</article-id>
<article-id pub-id-type="doi">10.24875/acm.20000206</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Presión arterial en embarazos normales de la Ciudad de México]]></article-title>
<article-title xml:lang="en"><![CDATA[Blood pressure in normal pregnancies from Mexico City]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Oviedo-Cruz]]></surname>
<given-names><![CDATA[Héctor]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cortés-Martínez]]></surname>
<given-names><![CDATA[Marco A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Centro Médico para la Atención Fetal Especializada Departamento de Medicina Materno-Fetal ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Laboratorio CEMAFE S.A. de C.V Departamento de Bioquímica y Calidad ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2021</year>
</pub-date>
<volume>91</volume>
<numero>3</numero>
<fpage>289</fpage>
<lpage>298</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1405-99402021000300289&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1405-99402021000300289&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1405-99402021000300289&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Objetivo: Determinar la presión arterial (PA) normal en embarazadas en la Ciudad de México.  Método: Estudio transversal descriptivo de la PA en embarazos normales de feto único en la Ciudad de México. Las mediciones siguieron un método estandarizado con uso de dispositivos electrónicos automatizados. Se construyeron valores de referencia de las presiones sistólica (PS), diastólica (PD) y arterial media (PAM). Se probaron los efectos de las características maternas y de la gestación sobre la PA. Los intervalos de referencia de la PA se ajustaron para las variables significativas.  Resultados: En 1,056 mujeres con edad media de 33 años y 160 cm medios de estatura se realizaron 1,915 mediciones entre las 5 y 41 semanas de edad gestacional (EG) con peso medio de 65 kg. La PA durante el embarazo fue de 102.7/67.2 ± 9.3/7.4 DE mmHg y 79.0 ± 7.4 DE mmHg la PAM. La PA tuvo una relación cuadrática con la EG, la más baja en el segundo trimestre. La PS y la PD mostraron una correlación lineal (r = 0.71). El peso materno tuvo el efecto más significativo sobre PS y PAM; la estatura sobre la PD. La edad, etnia, paridad, consumo de tabaco y antecedente familiar ejercieron efectos diferentes en cada PA. La gestación no tuvo efecto significativo en el modelo multivariado de la PS.  Conclusiones: La PA se halló por debajo de la norma convencional en embarazadas. Los criterios diagnósticos para hipertensión en el embarazo deben revisarse; los valores de referencia pueden ajustarse a características maternas y gestacionales.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Objective: To determine the normal blood pressure (BP) in pregnancy, Mexico City.  Methods: A cross-sectional observational study was carried out of BP on singleton normal pregnancies in Mexico City. Measurements followed a standardised methodology using automated electronic devices. Reference values of systolic (SBP), diastolic (DBP) and mean arterial pressure (MAP) were constructed. Maternal and gestation characteristics effects on BP were tested. The reference ranges of BP were adjusted for significant variables.  Results: On 1,056 women of 33 years old mean age and 160.0 cm mean height, 1,915 measurements were made between 5 and 41 weeks of gestational age (GA) with 65.0 kg of mean weight. The median BP throughout pregnancy was 102.7/67.2 ± 9.3/7.4 SD mmHg, and 79.0 ± 7.4 SD mmHg the MAP. BP had a quadratic relationship with GA, being the lowest in 2nd trimester. SBP and DBP had a r = 0.71 linear correlation. Maternal weight had the most significant effect on SBP and MAP; height, on DBP. Maternal age, ethnic origin, parity, tobacco habit and family history had differential effects on BP. Gestation had no significant effect on SBP multivariate model.  Conclusions: BP resulted lower than conventional standard for pregnant women. Diagnostic criteria for hypertension in pregnancy must be revised; reference values can be adjusted by maternal and gestation characteristics.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Presión arterial]]></kwd>
<kwd lng="es"><![CDATA[Embarazo]]></kwd>
<kwd lng="es"><![CDATA[Valores de referencia]]></kwd>
<kwd lng="es"><![CDATA[Preeclampsia]]></kwd>
<kwd lng="es"><![CDATA[México]]></kwd>
<kwd lng="en"><![CDATA[Blood pressure]]></kwd>
<kwd lng="en"><![CDATA[Pregnancy]]></kwd>
<kwd lng="en"><![CDATA[Reference values]]></kwd>
<kwd lng="en"><![CDATA[Pre-eclampsia]]></kwd>
<kwd lng="en"><![CDATA[Mexico]]></kwd>
</kwd-group>
</article-meta>
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