<?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>0035-0052</journal-id>
<journal-title><![CDATA[Revista mexicana de pediatría]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. pediatr.]]></abbrev-journal-title>
<issn>0035-0052</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Pediatría A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0035-00522024000600228</article-id>
<article-id pub-id-type="doi">10.35366/120538</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Factores de riesgo asociados al deterioro de la función renal en niños con enfermedad renal crónica: análisis a un año de seguimiento]]></article-title>
<article-title xml:lang="en"><![CDATA[Risk factors associated with renal function deterioration in children with chronic kidney disease: a one-year follow-up analysis]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vadillo-Sáenz]]></surname>
<given-names><![CDATA[Lourdes Cointa]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zurita-Cruz]]></surname>
<given-names><![CDATA[Jessie N]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zepeda-Martínez]]></surname>
<given-names><![CDATA[Claudia del Carmen]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Alegría-Torres]]></surname>
<given-names><![CDATA[Gabriela Alejandra]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Mexicano del Seguro Social Centro Médico Nacional Siglo XXI Unidad Médica de Alta Especialidad Hospital de Pediatría]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional Autónoma de México Facultad de Medicina Hospital Infantil de México Federico]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2024</year>
</pub-date>
<volume>91</volume>
<numero>6</numero>
<fpage>228</fpage>
<lpage>234</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0035-00522024000600228&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0035-00522024000600228&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0035-00522024000600228&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Introducción:  La enfermedad renal crónica (ERC) es una afección progresiva e irreversible que compromete la función renal. Algunos estudios han reportado disminución anual de la tasa de filtrado glomerular (TFG) de aproximadamente 5 mL/min/1.73 m2, influenciada por factores como hipertensión, proteinuria, anemia e infecciones urinarias.  Objetivo:  Describir la velocidad de progresión del deterioro de la función renal a un año de seguimiento en pacientes pediátricos con ERC, e identificar los factores de riesgo asociados con la disminución de la TFG.  Material y métodos:  Se realizó un estudio de cohorte retrospectivo. Se incluyeron pacientes de dos a 16 años con diagnóstico de ERC en estadios 2, 3 y 4. Se recopilaron datos demográficos, antropométricos, bioquímicos y de TFG al momento de primera consulta. Se calculó la velocidad de deterioro de la TFG a los 12 meses de seguimiento. Se compararon factores de riesgo entre quienes tuvieron y no tuvieron deterioro significativo de la TFG. Análisis estadístico: &#967;2, prueba exacta de Fisher, U de Mann-Whitney, y análisis multivariado tipo regresión logística.  Resultados:  Se estudiaron 70 pacientes; la mediana de edad fue de 11 años. A un año, 70% presentó deterioro en la función renal, con mayor afectación en pacientes con glomerulopatía (100%). La progresión fue más rápida en estadio 2. La proteinuria, hipertensión y la hiperfosfatemia fueron los factores de riesgo que se asociaron al deterioro renal, según análisis multivariado.  Conclusiones:  La proteinuria, hipertensión y la hiperfosfatemia se asocian con la disminución de la TFG en niños con ERC. Además, la ERC secundaria a glomerulopatía y enfermedad vascular parece también ser predictor del deterioro de la función renal.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Introduction:  Chronic kidney disease (CKD) is a progressive and irreversible condition that impairs renal function. Research has shown an average annual decline in glomerular filtration rate (GFR) of approximately 5 mL/min/1.73 m2, influenced by factors such as hypertension, proteinuria, anemia, and recurrent urinary tract infections.  Objective:  To describe the rate of renal function decline over one year of follow-up in pediatric patients with chronic kidney disease (CKD), and to identify risk factors associated with decreased glomerular filtration rate (GFR).  Material and methods:  A retrospective cohort study was conducted, including patients aged 2 to 16 years diagnosed with CKD stages 2, 3, and 4. Demographic, anthropometric, biochemical, and GFR data were collected at the initial consultation. The rate of GFR decline was assessed after 12 months of follow-up. Risk factors were compared between patients with and without significant GFR decline. Statistical analyses included the &#967;2 test, Fisher&#8217;s exact test, Mann-Whitney U test, and multivariate logistic regression.  Results:  A total of 70 patients were included, with a median age of 11 years. After one year, 70% of patients showed a decline in renal function, with the most pronounced deterioration observed in those with glomerulopathy (100%). The fastest progression occurred in patients with stage 2 CKD. Proteinuria, hypertension and hyperphosphatemia were identified as significant risk factors for renal deterioration in the multivariate analysis.  Conclusions:  Proteinuria, hypertension and hyperphosphatemia are associated with greater GFR decline in children with CKD. Additionally, CKD secondary to glomerulopathy and vascular disease appears to be a predictor of renal function deterioration.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[enfermedad renal crónica]]></kwd>
<kwd lng="es"><![CDATA[factores de riesgo]]></kwd>
<kwd lng="es"><![CDATA[deterioro función renal]]></kwd>
<kwd lng="es"><![CDATA[proteinuria]]></kwd>
<kwd lng="es"><![CDATA[hiperfosfatemia]]></kwd>
<kwd lng="es"><![CDATA[pediatría]]></kwd>
<kwd lng="en"><![CDATA[chronic kidney disease]]></kwd>
<kwd lng="en"><![CDATA[risk factors]]></kwd>
<kwd lng="en"><![CDATA[renal function deterioration]]></kwd>
<kwd lng="en"><![CDATA[proteinuria]]></kwd>
<kwd lng="en"><![CDATA[hyperphosphatemia]]></kwd>
<kwd lng="en"><![CDATA[pediatrics]]></kwd>
</kwd-group>
</article-meta>
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<page-range>2618-22</page-range></nlm-citation>
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<label>18</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Voormolen]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Noordzij]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Grootendorst]]></surname>
<given-names><![CDATA[DC]]></given-names>
</name>
<name>
<surname><![CDATA[Beetz]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
<name>
<surname><![CDATA[Sijpkens]]></surname>
<given-names><![CDATA[YW]]></given-names>
</name>
<name>
<surname><![CDATA[van Manen]]></surname>
<given-names><![CDATA[JG]]></given-names>
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</person-group>
<article-title xml:lang=""><![CDATA[High plasma phosphate as a risk factor for decline in renal function and mortality in pre-dialysis patients]]></article-title>
<source><![CDATA[Nephrol Dial Transplant]]></source>
<year>2007</year>
<volume>22</volume>
<numero>10</numero>
<issue>10</issue>
<page-range>2909-16</page-range></nlm-citation>
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</back>
</article>
