<?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>S0035-00522024000100024</article-id>
<article-id pub-id-type="doi">10.35366/118505</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Serie de casos de fenilcetonuria clásica en Ecuador]]></article-title>
<article-title xml:lang="en"><![CDATA[Series of cases of classic phenylketonuria in Ecuador]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Herrera-Jaramillo]]></surname>
<given-names><![CDATA[María Isabel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Tello-Herrera]]></surname>
<given-names><![CDATA[María Gabriela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Tello-Herrera]]></surname>
<given-names><![CDATA[María Belén]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Alarcón-Flores]]></surname>
<given-names><![CDATA[María José]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital José Carrasco Arteaga  ]]></institution>
<addr-line><![CDATA[Cuenca ]]></addr-line>
<country>Ecuador</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Católica de Cuenca  ]]></institution>
<addr-line><![CDATA[Cuenca ]]></addr-line>
<country>Ecuador</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Hospital Pedro de Elizalde  ]]></institution>
<addr-line><![CDATA[Buenos Aires ]]></addr-line>
<country>Argentina</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Católica de Cuenca  ]]></institution>
<addr-line><![CDATA[Cuenca ]]></addr-line>
<country>Ecuador</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>02</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>02</month>
<year>2024</year>
</pub-date>
<volume>91</volume>
<numero>1</numero>
<fpage>24</fpage>
<lpage>27</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0035-00522024000100024&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0035-00522024000100024&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0035-00522024000100024&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Introducción:  la fenilcetonuria es un trastorno metabólico innato que provoca retraso global del desarrollo, si no recibe manejo oportuno.  Objetivo:  describir la evolución clínica y el tratamiento de los pacientes pediátricos con fenilcetonuria clásica.  Casos clínicos:  cuatro pacientes menores de 5 años, que presentaron fenilcetonuria clásica, diagnosticados mediante el tamizaje metabólico neonatal y se dio tratamiento oportuno. Tres de los cuatro casos están siguiendo el tratamiento y no presentan sintomatología, mientras que la paciente restante, no se adhiere al tratamiento y sí muestra síntomas.  Conclusiones:  el diagnóstico precoz y el adecuado control metabólico a través del tratamiento dietético-nutricional es crucial para evitar las complicaciones y mejorar la calidad de vida de estos pacientes.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Introduction:  phenylketonuria is an inherited metabolic disorder that leads to global developmental delay, if not managed promptly.  Objective:  to describe the clinical progression and treatment of pediatric patients with classic phenylketonuria.  Clinical cases:  four patients younger than 5 years old with classic phenylketonuria were diagnosed through neonatal metabolic screening and received timely treatment. Three of the four cases are following the treatment and show no symptoms, while the remaining patient, who is not adhering to treatment, does exhibit symptoms.  Conclusions:  early diagnosis and a proper metabolic control through dietary and nutritional treatment are crucial to prevent complications and improve the quality of life for these patients.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[fenilalanina]]></kwd>
<kwd lng="es"><![CDATA[fenilcetonurias]]></kwd>
<kwd lng="es"><![CDATA[pediatría]]></kwd>
<kwd lng="es"><![CDATA[tamizaje neonatal]]></kwd>
<kwd lng="es"><![CDATA[tratamiento]]></kwd>
<kwd lng="en"><![CDATA[neonatal screening]]></kwd>
<kwd lng="en"><![CDATA[pediatrics]]></kwd>
<kwd lng="en"><![CDATA[phenylalanine]]></kwd>
<kwd lng="en"><![CDATA[phenylketonuria]]></kwd>
<kwd lng="en"><![CDATA[treatment]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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