<?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>2007-4085</journal-id>
<journal-title><![CDATA[Revista mexicana de urología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. urol.]]></abbrev-journal-title>
<issn>2007-4085</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Urología]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-40852023000200001</article-id>
<article-id pub-id-type="doi">10.48193/revistamexicanadeurologa.v83i2.986</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Obstrucción congénita de la unión ureteropiélica. Estudio de casos en un centro de segundo nivel]]></article-title>
<article-title xml:lang="en"><![CDATA[Congenital obstruction of the ureteropelvic junction. Case study in a second level center]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Contreras-Villanueva]]></surname>
<given-names><![CDATA[Ricardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Tapia-Garibay]]></surname>
<given-names><![CDATA[Jorge Ignacio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Tequianes-Tlalolin]]></surname>
<given-names><![CDATA[Juan José]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Infantil de Morelia &#8220;Eva Samano de López Mateos&#8221;  ]]></institution>
<addr-line><![CDATA[Morelia Michoacán de Ocampo]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Centro Médico &#8220;Lic. Adolfo Lopez Mateos&#8221;  ]]></institution>
<addr-line><![CDATA[ Estado de México]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2023</year>
</pub-date>
<volume>83</volume>
<numero>2</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-40852023000200001&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-40852023000200001&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-40852023000200001&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Objetivo:  Evaluar la incidencia, características clínicas, diagnóstico y tratamiento de la obstrucción congénita de la unión ureteropiélica (OCUUP) en pacientes pediátricos en el Hospital Infantil de Morelia.  Material y métodos:  Estudio retrospectivo, observacional, descriptivo y transversal en población pediátrica con el diagnóstico de OCUUP atendidos en el servicio de urología de un centro médico de segundo nivel atención durante el periodo enero 2018 a diciembre 2021.  Resultados:  En este estudio se revisaron 53 pacientes con hidronefrosis prenatal que fueron objeto de seguimiento postnatal, de los cuales solo 6 pacientes captados de manera prenatal recibieron el diagnóstico de obstrucción congénita de la unión ureteropiélica (OCUUP). Se incluyeron siete pacientes con diagnóstico postnatal de hidronefrosis y posteriormente de OCUUP, lo que dio lugar a una muestra total de trece pacientes diagnosticados. La incidencia de OCUUP fue de 3.4 pacientes por cada 100 primeras visitas al Servicio de Urología Pediátrica. El 92.31% de los casos fueron varones, siendo las manifestaciones clínicas más frecuentes las infecciones cutáneas y el dolor localizado. En todos los casos se realizó cirugía, siendo la pieloplastia de Anderson-Hynes el procedimiento más frecuente. Las complicaciones incluyeron infecciones del tracto urinario, infección de la herida y fístula, pero la mayoría de los pacientes tuvieron resultados satisfactorios con reducción de la hidronefrosis tras la cirugía.  Hallazgos o conclusiones:  Se encontró una baja tasa de detección temprana de OCUUP en pacientes con seguimiento de hidronefrosis prenatal. Se recomienda una búsqueda intencionada de alteraciones urológicas en ecografías estructurales de control prenatal. Se destaca la importancia de un diagnóstico preciso y tratamiento oportuno de la OCUUP para prevenir complicaciones renales.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Objective:  To evaluate the incidence, clinical characteristics, diagnosis, and treatment of congenital ureteropelvic junction obstruction in pediatric patients (CUPBO) at the Hospital Infantil de Morelia.  Material and methods:  This was a retrospective, observational, descriptive, and cross-sectional study of pediatric patients diagnosed with CUPBO and treated in the urology service of a second-level care medical center from January 2018 to December 2021.  Results:  We reviewed 53 patients with prenatal hydronephrosis who underwent postnatal follow-up, of whom only 6 patients diagnosed with congenital ureteropelvic junction obstruction (CUPBO) were identified prenatally. Seven patients were diagnosed with hydronephrosis postnatally and subsequently diagnosed with CUPBO, resulting in a total sample of 13 diagnosed patients. The incidence of CUPBO was 3.4 patients per 100 first visits to the Pediatric Urology Service. Of the cases, 92.31% were male, and the most frequent clinical manifestations were skin infections and localized pain. Surgery was performed in all cases, with Anderson-Hynes pyeloplasty being the most frequent procedure. Complications included urinary tract infections, wound infections, and fistula, but most patients had satisfactory results with a reduction of hydronephrosis after surgery.  Findings or conclusions:  Our study found a low rate of early detection of CUPBO in patients with prenatal hydronephrosis follow-up. We recommend an intentional search for urologic alterations in structural ultrasound scans of prenatal control. We emphasize the importance of an accurate diagnosis and timely treatment of CUPBO to prevent renal complications.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Congenital ureteropelvic junction obstruction]]></kwd>
<kwd lng="en"><![CDATA[Andenson-Hynes]]></kwd>
<kwd lng="en"><![CDATA[Pediatrics]]></kwd>
<kwd lng="en"><![CDATA[Management]]></kwd>
<kwd lng="es"><![CDATA[Obstrucción congénita de la unión ureteropiélica]]></kwd>
<kwd lng="es"><![CDATA[Andenson-Hynes]]></kwd>
<kwd lng="es"><![CDATA[pediatría]]></kwd>
<kwd lng="es"><![CDATA[manejo]]></kwd>
</kwd-group>
</article-meta>
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