<?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>1688-1249</journal-id>
<journal-title><![CDATA[Archivos de Pediatría del Uruguay]]></journal-title>
<abbrev-journal-title><![CDATA[Arch. Pediatr. Urug.]]></abbrev-journal-title>
<issn>1688-1249</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Uruguaya de Pediatría]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1688-12492025000301309</article-id>
<article-id pub-id-type="doi">10.31134/ap.96.26</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Descripción de un recién nacido prematuro con valva de uretra posterior con necesidad de diálisis peritoneal]]></article-title>
<article-title xml:lang="en"><![CDATA[Description of a premature newborn with posterior urethral valve requiring peritoneal dialysis]]></article-title>
<article-title xml:lang="pt"><![CDATA[Descrição de um recém-nascido prematuro com válvula de uretra posterior necessitando de diálise peritoneal]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Di Gifico]]></surname>
<given-names><![CDATA[Florencia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Brandani]]></surname>
<given-names><![CDATA[María]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Berazategui]]></surname>
<given-names><![CDATA[Juan Pablo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[de Sarasqueta]]></surname>
<given-names><![CDATA[Alejo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Centurión]]></surname>
<given-names><![CDATA[Julio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Sanatorio Anchorena San Martín Servicio Neonatología ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Argentina</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2025</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2025</year>
</pub-date>
<volume>96</volume>
<numero>2</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_arttext&amp;pid=S1688-12492025000301309&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_abstract&amp;pid=S1688-12492025000301309&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_pdf&amp;pid=S1688-12492025000301309&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Introducción:  el diagnóstico de valva de uretra posterior (VUP) evolucionó gracias al avance del diagnóstico y la evaluación prenatal y posnatal. El tratamiento va desde terapias farmacológicas, intervenciones quirúrgicas hasta diálisis peritoneal. El manejo de pacientes prematuros con VUP que requieren diálisis peritoneal es complejo y requiere un enfoque multidisciplinario que aborda tanto las complicaciones de la prematurez como las esperables en un paciente con VUP.  Objetivos: describir el caso de un recién nacido prematuro (RNPT) con VUP que realizó diálisis peritoneal. Resaltar la complejidad del manejo de los RNPT con afecciones urológicas graves y sus implicaciones en el cuidado neonatal.  Caso clínico: se presenta un RNPT de 31 semanas de gestación con diagnóstico prenatal de oligoamnios con sospecha de VUP. El paciente al nacer desarrolla distrés respiratorio y al examen físico se presenta con globo vesical. Urología infantil realizó cistostomía percutánea de urgencia a las dos horas de vida. Se realizó ecografía abdominal con hidronefrosis bilateral moderada, riñones aumentados de ecogenicidad y múltiples imágenes quísticas. Evoluciona con deterioro de la función renal. Se realizó vesicostomía a los ocho días de vida, y por insuficiencia renal con desequilibrios hidroelectrolíticos comenzó diálisis peritoneal a los trece días. Evolucionó estable, con mejora significativa en la función renal y estabilización del medio interno. Realizó cinco días totales de diálisis peritoneal.  Conclusiones: el manejo de RNPT con VUP que requieren diálisis peritoneal es complejo y requiere un enfoque multidisciplinario (neonatólogos, urólogos pediátricos, nefrólogos pediátricos y enfermeras especializadas en cuidados neonatales).]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Summary:  Introduction:  the diagnosis of posterior urethral valves (PUV) has evolved due to the progress made in prenatal and postnatal imaging and evaluation techniques. Treatment options range from pharmacological therapies and surgical interventions to peritoneal dialysis. The management of preterm neonates with PUV requiring peritoneal dialysis is complex and necessitates a multidisciplinary approach that addresses both the complications of prematurity and those associated with PUV.  Objectives:  to describe the case of a preterm neonate (PTNB) with PUV who required peritoneal dialysis, emphasizing the complexities of managing PTNB with severe urological conditions and its implications for neonatal care.  Case report:  a PTNB at 31 weeks&#8217; of gestation with prenatal oligohydramnios and suspected PUV presented at birth with respiratory distress and a distended bladder. Emergency percutaneous cystostomy was performed at 2 hours of life by the pediatric urology team. Abdominal ultrasound revealed moderate bilateral hydronephrosis, increased renal echogenicity, and multiple cysts. Renal function deteriorated, necessitating a vesicostomy at 8 days and the initiation of peritoneal dialysis at 13 days due to renal failure and fluid-electrolyte imbalances. The patient showed steady improvement in renal function and internal stability after 5 days of peritoneal dialysis.  Conclusions:  managing PTNB with PUV requiring peritoneal dialysis is multifaceted, requiring collaboration among neonatologists, pediatric urologists, pediatric nephrologists, and specialized neonatal nurses.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo:  Introdução: o diagnóstico de valvas da uretra posterior (VUP) evoluiu graças ao avanço do diagnóstico e da avaliação pré-natal e pós-natal. O tratamento varia desde terapias farmacológicas, intervenções cirúrgicas até diálise peritoneal. O manejo de pacientes prematuros com VUP que necessitam de diálise peritoneal é complexo e exige uma abordagem multidisciplinar que aborde tanto as complicações da prematuridade quanto as esperadas em um paciente com VUP.  Objetivos:  descrever o caso de um recém-nascido prematuro (RNPT) com VUP que realizou diálise peritoneal. Destacar a complexidade do manejo dos RNPT com afecções urológicas graves e suas implicações no cuidado neonatal.  Relato de Caso:  apresenta-se um RNPT de 31 semanas de gestação com diagnóstico pré-natal de oligo-hidrâmnio com suspeita de VUP. O paciente, ao nascer, desenvolveu um desconforto respiratório e ao exame físico apresentava bexigoma. A urologia pediátrica realizou cistostomia percutânea de urgência às 2 horas de vida. Foi realizada ultrassonografia abdominal com hidronefrose bilateral moderada, rins aumentados de ecogenicidade e múltiplas imagens císticas. Evoluiu com deterioração da função renal. Foi realizada vesicostomia aos 8 dias de vida e, devido à insuficiência renal com desequilíbrios hidroeletrolíticos, iniciou diálise peritoneal aos 13 dias. Evoluiu estável, com melhora significativa na função renal e estabilização do meio interno. Realizou 5 dias totais de diálise peritoneal.  Conclusões:  o manejo de RNPT com VUP que necessitam de diálise peritoneal é complexo e requer uma abordagem multidisciplinar (neonatologistas, urologistas pediátricos, nefrologistas pediátricos e enfermeiros).]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Diálisis Peritoneal]]></kwd>
<kwd lng="es"><![CDATA[Recién Nacido Prematuro]]></kwd>
<kwd lng="en"><![CDATA[Peritoneal Dialysis]]></kwd>
<kwd lng="en"><![CDATA[Premature Infant]]></kwd>
<kwd lng="pt"><![CDATA[Diálise Peritoneal]]></kwd>
<kwd lng="pt"><![CDATA[Recém-nascido Prematuro]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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