<?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>1029-3043</journal-id>
<journal-title><![CDATA[Medicentro Electrónica]]></journal-title>
<abbrev-journal-title><![CDATA[Medicentro Electrónica]]></abbrev-journal-title>
<issn>1029-3043</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Ciencias Médicas de Villa Clara]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1029-30432020000200229</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Utilidad de la medición del timo fetal en el diagnóstico de anomalías congénitas y enfermedades obstétricas]]></article-title>
<article-title xml:lang="en"><![CDATA[Utility of fetal thymus measurement in the diagnosis of congenital anomalies and obstetric diseases]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González Herrera]]></surname>
<given-names><![CDATA[Lorna]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Herrera Martínez]]></surname>
<given-names><![CDATA[Manuela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Estrada López]]></surname>
<given-names><![CDATA[Kenia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández Moreno]]></surname>
<given-names><![CDATA[Vicente]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vega]]></surname>
<given-names><![CDATA[Liset Ley]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Oliva Brett]]></surname>
<given-names><![CDATA[Henry José]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Centro Provincial de Genética Médica  ]]></institution>
<addr-line><![CDATA[Santa Clara Villa Clara]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Ciencias Médicas de Villa Clara  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Hospital Pediátrico Universitario José Luis Miranda  ]]></institution>
<addr-line><![CDATA[Santa Clara Villa Clara]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Hospital Universitario Ginecobstétrico Mariana Grajales  ]]></institution>
<addr-line><![CDATA[Santa Clara Villa Clara]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2020</year>
</pub-date>
<volume>24</volume>
<numero>2</numero>
<fpage>229</fpage>
<lpage>249</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S1029-30432020000200229&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S1029-30432020000200229&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S1029-30432020000200229&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción:  el interés de la visualización sonográfica del timo fetal está relacionado con su importante función inmunológica, las posibilidades de diagnóstico que ofrecen los ecógrafos de alta resolución, y el incremento de informes de posibles afecciones durante el proceso de la gestación.  Objetivo:  determinar la frecuencia de la hipoplasia tímica fetal en gestantes de riesgo genético y relacionarla con la presencia de defectos fetales, factores de riesgo previos y aparición de efectos obstétricos adversos.  Métodos:  se realizó un estudio descriptivo prospectivo consistente en la evaluación ecográfica del timo fetal mediante el índice timo-tórax a 221 gestantes que acudieron a los servicios de referencia del Centro Provincial de Genética Médica, por presentar riesgo genético incrementado para cardiopatías.  Resultados:  se encontraron 16 fetos con un índice timo-tórax inferior o igual a 0,30, el cual se utilizó como criterio de hipoplasia tímica en este estudio, entre ellos: 4 con cardiopatías, 4 con cromosomopatías, 1 con malformación estructural aislada, 2 con preeclampsia, 1 con crecimiento intrauterino retardado, 1 pretérmino y una muerte fetal. Los motivos de referencia con mayor proporción de positividad fueron: la traslucencia nucal aumentada y la imagen de sospecha de cardiopatía congénita en ultrasonido de pesquisaje.  Conclusiones:  la determinación del índice timo-tórax permitió el diagnóstico de la hipoplasia tímica, tanto en el segundo como en el tercer trimestre de la gestación. Este tipo de investigación es relevante pues contribuye a identificar: defectos congénitos, factores de riesgo y efectos obstétricos adversos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction:  the interest in sonographic visualization of the fetal thymus is related to its important immunological function, the diagnostic possibilities offered by high-resolution ultrasound scanners, and the increased reporting of possible conditions during the gestation process.  Objective:  to determine the frequency of fetal thymic hypoplasia in pregnant women with genetic risks and to relate it to the presence of fetal defects, previous risk factors and the appearance of adverse obstetric effects.  Methods:  we conducted a prospective descriptive study consisting of the ultrasound evaluation of the fetal thymus by means of the thymic-thoracic ratio in 221 pregnant women who come to referral services of the Provincial Center of Medical Genetics, because they presented increased genetic risk for heart disease.  Results:  sixteen fetuses were found with a thymic-thoracic ratio less than or equal to 0.30, which was used as the criterion for thymic hypoplasia in this study: four with heart diseases, four with chromosomal diseases, one with isolated structural malformation, two with preeclampsia, one with delayed intrauterine growth, one preterm and one fetal death. The reference reasons with the highest proportion of positivity were: increased nuchal translucency and image of suspected congenital cardiopathy in screening ultrasound.  Conclusions:  determination of the thymic-thoracic ratio allowed us the diagnosis of thymic hypoplasia, both in the second and third trimester of pregnancy. This type of research is relevant because it helps to identify: congenital defects, risk factors and adverse obstetric effects.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[timo/diagnóstico por imagen]]></kwd>
<kwd lng="es"><![CDATA[cardiopatías congénitas/diagnóstico por imagen]]></kwd>
<kwd lng="en"><![CDATA[thymus gland//diagnostic imaging]]></kwd>
<kwd lng="en"><![CDATA[heart defects]]></kwd>
<kwd lng="en"><![CDATA[congenital/diagnostic imaging]]></kwd>
</kwd-group>
</article-meta>
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