<?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>0378-6420</journal-id>
<journal-title><![CDATA[Revista Venezolana de Cirugía]]></journal-title>
<abbrev-journal-title><![CDATA[RevVenezCir]]></abbrev-journal-title>
<issn>0378-6420</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Venezolana de Cirugía]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0378-64202025000200105</article-id>
<article-id pub-id-type="doi">10.48104/rvc.2025.78.2.9</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[TUMOR DE KLATSKIN, PREVALENCIA EN VENEZUELA DIAGNOSTICADA CON COLANGIOPANCREATOGRAFÍA RETRÓGRADA ENDOSCÓPICA]]></article-title>
<article-title xml:lang="en"><![CDATA[KLATSKIN TUMOR, PREVALENCE IN VENEZUELA DIAGNOSED WITH ENDOSCOPIC RETROGRADE CHOLANGIOPANCREATOGRAPHY]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castillo Arrieta]]></surname>
<given-names><![CDATA[Yhonny]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castillo Ayala]]></surname>
<given-names><![CDATA[Diego]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castillo Ayala]]></surname>
<given-names><![CDATA[Daniel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Figueroa Castillo]]></surname>
<given-names><![CDATA[Frank]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Traviezo Valles]]></surname>
<given-names><![CDATA[Luis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Policlínica Barquisimeto  ]]></institution>
<addr-line><![CDATA[Barquisimeto estaado Lara]]></addr-line>
<country>Venezuela</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Policlínica Barquisimeto  ]]></institution>
<addr-line><![CDATA[Barquisimeto estado Lara]]></addr-line>
<country>Venezuela</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Policlínica Barquisimeto  ]]></institution>
<addr-line><![CDATA[Barquisimeto estado Lara]]></addr-line>
<country>Venezuela</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Policlínica Barquisimeto  ]]></institution>
<addr-line><![CDATA[Barquisimeto estado Lara]]></addr-line>
<country>Venezuela</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Universidad Centroccidental Lisandro Alvarado  ]]></institution>
<addr-line><![CDATA[Barquisimeto ]]></addr-line>
<country>Venezuela</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2025</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2025</year>
</pub-date>
<volume>78</volume>
<numero>2</numero>
<fpage>105</fpage>
<lpage>110</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://ve.scielo.org/scielo.php?script=sci_arttext&amp;pid=S0378-64202025000200105&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://ve.scielo.org/scielo.php?script=sci_abstract&amp;pid=S0378-64202025000200105&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://ve.scielo.org/scielo.php?script=sci_pdf&amp;pid=S0378-64202025000200105&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN El tumor de Klatskin (TK) o colangiocarcinoma hiliar es de mal pronóstico por lo que su diagnóstico oportuno y particularmente con la CPRE, permite un mejor abordaje y la paliación de los síntomas.  Objetivo.  Determinar la prevalencia de tumor de Klatskin en un centro CPRE de alta densidad y discriminarlo por grupos de edad, sexo y procedencia.  Metodología.  Estudio descriptivo de corte transversal, con muestra intencional cuya muestra estuvo constituida por 14.200 pacientes que asistieron espontáneamente a realizarse la CPRE entre el 01/07/2014 y 01/07/2025 con protocolos estandarizados.  Resultados.  Se evidenciaron 1052 TK (7,4%) apreciándose una mayor incidencia en el sexo femenino (58%) en los pacientes mayores de 50 años y en aquellos procedentes de los estados Lara (23,4%), Zulia (19,9%) y Carabobo (9,5%). La OMS refiere una prevalencia mundial de uno a dos casos por cada 100.000 habitantes, por lo que, la prevalencia aquí reportada es superior a lo esperado.  Conclusiones.  Son necesarios mayores estudios para determinar las causas de este aumento, lo cual debe ir a la par de la implementación de nuevas técnicas quirúrgicas o tratamientos específicos, que permitan atenuar este tipo de neoplasias tan agresivas.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Klatskin tumor (KT) or hilar cholangiocarcinoma has a poor prognosis, so early diagnosis, particularly with ERCP, allows for a better approach and palliation of symptoms.  Objective.  To determine the prevalence of Klatskin tumor in a high-density ERCP center and to discriminate it by age, sex, and origin.  Methodology.  A descriptive, cross-sectional study with an intentional sample consisting of 14,200 patients who spontaneously attended to undergo ERCP between July 1, 2014 and July 1, 2025 using standardized protocols.  Results.  A total of 1,052 KTs (7.4%) were observed, with a higher incidence in females (58%), in patients over 50 years of age, and in those from the states of Lara (23.4%), Zulia (19.9%), and Carabobo (9.5%). The WHO reports a global prevalence of one to two cases per 100,000 inhabitants, so the prevalence reported here is higher than expected.  Conclusions:  Further studies are needed to determine the causes of this increase, which should be accompanied by the implementation of new surgical techniques or specific treatments to mitigate this type of aggressive neoplasia.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[colangiocarcinoma]]></kwd>
<kwd lng="es"><![CDATA[CPRE]]></kwd>
<kwd lng="es"><![CDATA[epidemiología]]></kwd>
<kwd lng="es"><![CDATA[neoplasia de vía biliar]]></kwd>
<kwd lng="es"><![CDATA[tumor de Klatskin]]></kwd>
<kwd lng="es"><![CDATA[Venezuela]]></kwd>
<kwd lng="en"><![CDATA[biliary tract neoplasia]]></kwd>
<kwd lng="en"><![CDATA[cholangiocarcinoma]]></kwd>
<kwd lng="en"><![CDATA[epidemiology]]></kwd>
<kwd lng="en"><![CDATA[ERCP]]></kwd>
<kwd lng="en"><![CDATA[Klatskin tumor]]></kwd>
<kwd lng="en"><![CDATA[Venezuela]]></kwd>
</kwd-group>
</article-meta>
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