<?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>S2007-40852020000300103</article-id>
<article-id pub-id-type="doi">10.48193/rmu.v80i3.613</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Recurrencia de estenosis ureteropiélica posterior a tratamiento primario: prevalencia, factores asociados y tratamiento laparoscópico]]></article-title>
<article-title xml:lang="en"><![CDATA[Recurrent ureteropelvic junction obstruction following primary treatment: prevalence, associated factors, and laparoscopic treatment]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Cuenca]]></surname>
<given-names><![CDATA[Eduardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Medrano-Urtecho]]></surname>
<given-names><![CDATA[Harvey Mauricio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Corona-Montes]]></surname>
<given-names><![CDATA[Víctor Enrique]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Maldonado-Ávila]]></surname>
<given-names><![CDATA[Miguel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rosas-Nava]]></surname>
<given-names><![CDATA[Jesús Emmanuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital General de México &#8220;Dr. Eduardo Liceaga&#8221;  ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</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>80</volume>
<numero>3</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-40852020000300103&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-40852020000300103&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-40852020000300103&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Objetivo:  El objetivo primario es reportar la prevalencia de estenosis recurrente posterior a pieloplastía primaria y el tratamiento secundario realizado. El objetivo secundario es identificar factores clínicos o quirúrgicos relacionados a estenosis ureteropiélica recurrente.  Materiales y métodos:  Estudio retrospectivo de pacientes con diagnóstico de estenosis ureteropiélica (EUP) del Hospital General de México &#8220;Dr. Eduardo Liceaga&#8221; entre 2011-2019. Se incluyeron a pacientes sometidos a pieloplastía primaria, recurrencia de EUP, tratamiento secundario y seguimiento &#8805;6 meses. Se realizó un análisis descriptivo.  Resultados:  Cincuenta y dos pacientes se sometieron a pieloplastía abierta o laparoscópica como tratamiento primario, 6 presentaron recurrencia EUP (11.5%) a los 44 meses (mediana). Dos pacientes presentaron exclusión renal y se realizó nefrectomía simple laparoscópica. El resto (n=4) se sometieron a la pieloplastía laparoscópica REDO (PLREDO) transperitoneal como tratamiento secundario. Los pacientes con recurrencia presentaron una edad media de 46 años e IMC promedio de 32.57 ± 5 kg/m2, dos de ellos con derivación urinaria previa a la pieloplastía primaria. El tiempo quirúrgico fue mayor para PLREDO VS pieloplastía primaria (192 VS 113 minutos) y sangrado quirúrgico de 52 cc vs 52.9 cc. El hallazgo quirúrgico e histológico en PLREDO fue fibrosis periureteral, en ninguno se evidenció vaso aberrante. La longitud de la estenosis en los pacientes con PLREDO fue mayor a 15 mm (n=4). Obesidad, litiasis y longitud de estenosis (&gt;15mm) fue más frecuente en recurrencia.  Conclusiones:  En nuestra población se evidenció una prevalencia de recurrencia de EUP de 11.5%, lo cual se encuentra dentro de parámetros internacionales. La PLREDO es una herramienta útil como tratamiento de estenosis recurrente ureteropiélica.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Aim:  Our primary aim was to report the prevalence of recurrent stricture following primary pyeloplasty and the secondary treatment performed. The secondary aim was to identify the clinical or surgical factors related to recurrent ureteropelvic junction obstruction (UPJO).  Materials and methods:  A retrospective study was conducted on patients diagnosed with UPJO at the Hospital General de México &#8220;Dr. Eduardo Liceaga&#8221;, between 2011-2019. Patients that underwent primary pyeloplasty, and developed recurrent UPJO, underwent secondary treatment, and had follow-up &#8805;6 months were included in the study. A descriptive analysis was carried out.  Results:  A total of 52 patients underwent open or laparoscopic pyeloplasty as primary treatment and 6 of them (11.5%) presented with recurrent UPJO at 44 months (median). Two of those patients presented with a non-functioning kidney and underwent simple laparoscopic nephrectomy and the remaining 4 patients underwent transperitoneal laparoscopic redo pyeloplasty as secondary treatment. The mean age of the patients with recurrence was 46 years, their mean BMI was 32.57 ± 5 kg/m2, and two of them had urinary diversion prior to the primary pyeloplasty. Surgery duration was longer for laparoscopic redo pyeloplasty versus primary pyeloplasty (192 minutes versus 113 minutes) and intraoperative bleeding was similar (52cc versus 52.9cc). The surgical and histologic finding in laparoscopic redo pyeloplasty was peri-ureteral fibrosis. No aberrant vessels were found. Stricture was longer than 15 mm in the patients that underwent laparoscopic redo pyeloplasty (n=4). Obesity, lithiasis, and stricture length &gt;15mm were more frequent in the patients with recurrence.  Conclusions:  The prevalence of UPJO in our study population was 11.5%, which concurs with international parameters. Laparoscopic redo pyeloplasty is a useful tool in cases of UPJO.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Renal pelvis]]></kwd>
<kwd lng="en"><![CDATA[ureteral obstruction]]></kwd>
<kwd lng="en"><![CDATA[recurrence]]></kwd>
<kwd lng="en"><![CDATA[laparoscopy]]></kwd>
<kwd lng="es"><![CDATA[Pelvis renal]]></kwd>
<kwd lng="es"><![CDATA[obstrucción ureteral]]></kwd>
<kwd lng="es"><![CDATA[recurrencia]]></kwd>
<kwd lng="es"><![CDATA[laparoscopia]]></kwd>
</kwd-group>
</article-meta>
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