<?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>0034-7531</journal-id>
<journal-title><![CDATA[Revista Cubana de Pediatría]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Cubana Pediatr]]></abbrev-journal-title>
<issn>0034-7531</issn>
<publisher>
<publisher-name><![CDATA[Centro Nacional de Información de Ciencias MédicasEditorial Ciencias Médicas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0034-75312023000100009</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Seguimiento de dilatación del tracto urinario neonatal diagnosticada en la evaluación de infección del tracto urinario]]></article-title>
<article-title xml:lang="en"><![CDATA[Follow-up of Neonatal Urinary Tract Dilatation Diagnosed in the Evaluation of Urinary Tract Infection]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Díaz Álvarez]]></surname>
<given-names><![CDATA[Manuel Federico]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Acosta Batista]]></surname>
<given-names><![CDATA[Bárbara]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Pediátrico Universitario &#8220;Juan Manuel Márquez&#8221; Servicio de Neonatología ]]></institution>
<addr-line><![CDATA[ La Habana]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2023</year>
</pub-date>
<volume>95</volume>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S0034-75312023000100009&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S0034-75312023000100009&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S0034-75312023000100009&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Objetivo:  Mostrar las características y seguimiento de la dilatación del tracto urinario en recién nacidos con infección del tracto urinario.  Métodos:  Estudio observacional, descriptivo, realizado desde 1992 hasta 2019, en neonatos ingresados con infección del tracto urinario. A todos se les realizó ultrasonido renal y uretrocistografía miccional. Se analizaron las características clínicas y de radioimagen de presentación en el seguimiento de la dilatación del tracto urinario.  Resultados:  Se estudiaron 403 pacientes. La mediana de seguimiento fue de 13 meses. El ultrasonido renal resultó positivo para dilatación del tracto urinario en 148 (36,7 %). Predominaron los grados de dilatación ligera (5-10 mm.) sobre grados moderados y severos. En 38 casos (9,4 %) la dilatación del tracto urinario se asoció a reflujo vésico-ureteral. La condición más común fue la dilatación transitoria con una mediana de desaparición de la dilatación 5 meses. Hubo asociación estadística significativa de la desaparición de la dilatación del tracto urinario con el grado de esta y entre aquellos casos calificados de transitoria con los otros portadores de alguna anomalía del tracto urinario que también tuvieron desaparición de la dilatación en algún momento de su evolución.  Conclusiones:  Cerca de una tercera parte de los neonatos con infección del tracto urinario tuvieron dilatación del tracto urinario en ultrasonido renal, con predominio de grado ligero, como probable expresión de una anomalía del tracto urinario subyacente. Con frecuencia ocurre resolución de la dilatación del tracto urinario en aquellos casos no asociados con anomalía del tracto urinario, habitualmente dentro del primer año de vida.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  OBjective:  To show the characteristics and follow-up of urinary tract dilatation in neonates with urinary tract infection.  Methods:  Observational, descriptive study performed from 1992 to 2019, in neonates admitted with urinary tract infection. All underwent renal ultrasound and voiding urethrocystography. The clinical and radioimaging features of presentation were analyzed in the follow-up of urinary tract dilatation,  Results:  403 patients were studied. The median follow-up was 13 months. Renal ultrasound was positive for urinary tract dilatation in 148 (36.7%). Mild degrees of dilatation (5-10 mm) predominated over moderate and severe degrees. In 38 cases (9.4%) urinary tract dilatation was associated with vesico-ureteral reflux. The most common condition was transient dilatation with a median disappearance of dilatation 5 months. There was significant statistical association of the disappearance of urinary tract dilatation with the degree of dilatation and between those cases qualified as transient with the other carriers of some urinary tract anomaly who also had disappearance of dilatation at some point in their evolution.  Conclusions:  About one third of neonates with urinary tract infection had dilatation of the urinary tract on renal ultrasound, predominantly of mild degree, probably expression of an underlying anomaly. Resolution of dilatation frequently occurs in those cases not associated with urinary tract anomaly, usually within the first year of life.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[dilatación del tracto urinario]]></kwd>
<kwd lng="es"><![CDATA[hidronefrosis]]></kwd>
<kwd lng="es"><![CDATA[reflujo vésico-ureteral]]></kwd>
<kwd lng="es"><![CDATA[infección del tracto urinario]]></kwd>
<kwd lng="es"><![CDATA[anomalías del tracto urinario]]></kwd>
<kwd lng="es"><![CDATA[recién nacido]]></kwd>
<kwd lng="en"><![CDATA[urinary tract dilatation]]></kwd>
<kwd lng="en"><![CDATA[hydronephrosis]]></kwd>
<kwd lng="en"><![CDATA[ureteral-vesico-ureteral reflux]]></kwd>
<kwd lng="en"><![CDATA[urinary tract infection]]></kwd>
<kwd lng="en"><![CDATA[urinary tract anomalies]]></kwd>
<kwd lng="en"><![CDATA[newborn]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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