<?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>2307-0420</journal-id>
<journal-title><![CDATA[Cirugía paraguaya]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Cir. Parag.]]></abbrev-journal-title>
<issn>2307-0420</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Paraguaya de Cirugía]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2307-04202017000200021</article-id>
<article-id pub-id-type="doi">10.18004/sopaci.agosto.21-24</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[PREVALENCIA DE LITIASIS BILIAR EN PERSONAS CONCURRENTES AL HOSPITAL DE CLÍNICAS]]></article-title>
<article-title xml:lang="en"><![CDATA[PREVALENCE OF GALLSTONES IN PERSONS WHO ARE PRESENT AT THE HOSPITAL DE CLÍNICAS]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Machain-Vega]]></surname>
<given-names><![CDATA[Gustavo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Yamanaka]]></surname>
<given-names><![CDATA[Wataru]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López]]></surname>
<given-names><![CDATA[Gilberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martinez]]></surname>
<given-names><![CDATA[Marcelo Ma.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Miltos]]></surname>
<given-names><![CDATA[Marcelo González]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional de Asunción Hospital de Clínicas II Cátedra de Clínica Quirúrgica]]></institution>
<addr-line><![CDATA[San Lorenzo ]]></addr-line>
<country>Paraguay</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional de Asunción Hospital de Clínicas ]]></institution>
<addr-line><![CDATA[San Lorenzo ]]></addr-line>
<country>Paraguay</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Nacional de Asunción Hospital de Clínicas ]]></institution>
<addr-line><![CDATA[San Lorenzo ]]></addr-line>
<country>Paraguay</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Nacional de Asunción Hospital de Clínicas ]]></institution>
<addr-line><![CDATA[San Lorenzo ]]></addr-line>
<country>Paraguay</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2017</year>
</pub-date>
<volume>41</volume>
<numero>2</numero>
<fpage>21</fpage>
<lpage>24</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_arttext&amp;pid=S2307-04202017000200021&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_abstract&amp;pid=S2307-04202017000200021&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_pdf&amp;pid=S2307-04202017000200021&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción: La prevalencia de la litiasis biliar ha sido demostrada en varios países. En nuestro país es la causa principal de patologías quirúrgicas en varios servicios de cirugía, existen pocos estudios sobre el comportamiento de esta patología en el Paraguay.  Objetivo: Determinar la prevalencia de litiasis biliar en personas asintomáticas en un hospital paraguayo de referencia.  Material y Métodos: En este estudio observacional descriptivo de corte transversal, se analizan por ecografía abdominal personas concurrentes al Hospital de Clínicas, que cumplen con los criterios de inclusión para detección de litiasis vesicular. Utilizando métodos ecográficos estudiamos 58 personas: 30 Mujeres y 28 Hombres con edades de entre 20 a 70 Años. Estimada por el análisis estadístico para estudios descriptivos de una variable dicotómica con nivel de confianza del 95% y seleccionados por conveniencia.  Resultados:  Se encontraron 4 casos de 58 personas estudiadas (prevalencia de 7%), todos los casos fueron en mujeres de entre 32 a 56 años, 2 personas en edad fértil y 2 personas en edad no fértil.  Conclusión: La prevalencia ecográfica de litiasis vesicular en personas asintomáticas fue de 7%. Es un tema novedoso a nivel nacional y latinoamericano. Este estudio podría ser de mucho valor para investigaciones futuras relacionadas al tema.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[SUMMARY  Introduction:  The prevalence of gallstones has been demonstrated in several countries. In our country is the main cause of surgical pathologies in several surgical services, there are few studies on the behavior of this pathology in Paraguay.  Objetive:  Show the prevalence of gallstones in asymptomatic patients in a Paraguayan referral hospital.  Materials and methods: In this cross-sectional, observational, descriptive study, are analyzed by abdominal ultrasonography patients attending the Hospital de Clínicas, who meet the inclusion criteria for vesicular lithiasis. Using ultrasound methods, we studied 58 people: 30 women and 28 men with ages between 20 and 70 years. Estimated by statistical analysis for descriptive studies of a dichotomous variable with 95% confidence level and selected for convenience  Results: Four cases of 58 people were studied (prevalence of 7%), all cases were in women between 32 to 56 years, 2 people of childbearing age and 2 people of nonfertile age.  Conclusion: The ultrasound prevalence of vesicular lithiasis in asymptomatic individuals was 7%. It is a new topic at national and Latin American level. This study could be of great value for future research related to the subject.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[litiasis biliar]]></kwd>
<kwd lng="es"><![CDATA[ecografía]]></kwd>
<kwd lng="es"><![CDATA[prevalencia.]]></kwd>
<kwd lng="en"><![CDATA[Bile Stone]]></kwd>
<kwd lng="en"><![CDATA[Ultrasonography]]></kwd>
<kwd lng="en"><![CDATA[Prevalence.]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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