<?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>2072-8174</journal-id>
<journal-title><![CDATA[Revista del Nacional (Itauguá)]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Nac. (Itauguá)]]></abbrev-journal-title>
<issn>2072-8174</issn>
<publisher>
<publisher-name><![CDATA[Hospital Nacional (Itauguá)]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2072-81742018000100057</article-id>
<article-id pub-id-type="doi">10.18004/rdn2018.0010.01.057-067</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Medición ecográfica de la longitud cervical y riesgo de parto prematuro]]></article-title>
<article-title xml:lang="en"><![CDATA[Ultrasound measurement of cervical length and risk of preterm birth]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mareco Martínez]]></surname>
<given-names><![CDATA[Roger]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Sanatorio San Francisco  ]]></institution>
<addr-line><![CDATA[Pedro Juan Caballero ]]></addr-line>
<country>Paraguay</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2018</year>
</pub-date>
<volume>10</volume>
<numero>1</numero>
<fpage>57</fpage>
<lpage>67</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_arttext&amp;pid=S2072-81742018000100057&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_abstract&amp;pid=S2072-81742018000100057&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_pdf&amp;pid=S2072-81742018000100057&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción:  el parto prematuro es la causa del mayor número de muertes neonatales en todo el mundo y también de secuelas neurológicas, esto implica un alto costo para la familia y el Estado. Muchos estudios ya se realizaron para tratar de prevenirlo.  Objetivo:  actualizar los métodos ecográficos utilizados para diagnosticar alteraciones cervicales en relación al parto pretérmino.  Resultados:  la ecografía transvaginal puede medir y evaluar las características del cuello uterino en la embarazada por lo que es el método más utilizado para identificar mujeres con riesgo del parto prematuro espontáneo, pudiendo ser utilizado como tamizaje debido a su costo accesible y la disponibilidad en los servicios de salud.  Conclusiones:  la medición ecográfica de la longitud del cuello del útero a las 23 semanas de gestación representa el mejor predictor independiente para el parto antes de las 32 semanas.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction: Preterm birth is the cause of the greatest number of neonatal deaths worldwide and also of neurological sequels, this implies a high cost for the family and the State. Many studies have already been done to try to prevent it.  Objective: to update the ultrasound methods used to diagnose cervical alterations in relation to preterm delivery.  Results: transvaginal ultrasound can measure and evaluate the characteristics of the cervix in pregnant women, which is why it is the most widely used method to identify women at risk of spontaneous preterm birth, and it can be used as screening due to its accessible cost and availability in the Health services.  Conclusions: the ultrasound measurement of the length of the cervix at 23 weeks of gestation represents the best independent predictor for delivery before 32 weeks.]]></p></abstract>
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<kwd lng="es"><![CDATA[parto prematuro]]></kwd>
<kwd lng="es"><![CDATA[amenaza de parto]]></kwd>
<kwd lng="en"><![CDATA[premature birth]]></kwd>
<kwd lng="en"><![CDATA[threat of childbirth]]></kwd>
</kwd-group>
</article-meta>
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