<?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>1870-7203</journal-id>
<journal-title><![CDATA[Acta médica Grupo Ángeles]]></journal-title>
<abbrev-journal-title><![CDATA[Acta méd. Grupo Ángeles]]></abbrev-journal-title>
<issn>1870-7203</issn>
<publisher>
<publisher-name><![CDATA[Grupo Ángeles, Servicios de Salud]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-72032025000400329</article-id>
<article-id pub-id-type="doi">10.35366/120511</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Cambio de fórmula infantil en lactantes con síntomas gastrointestinales]]></article-title>
<article-title xml:lang="en"><![CDATA[Changes of infant formula in infants with gastrointestinal symptoms]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Méndez Nieto]]></surname>
<given-names><![CDATA[Carlos Mario]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zárate Mondragón]]></surname>
<given-names><![CDATA[Flora Elva]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Casas Guzik]]></surname>
<given-names><![CDATA[Lucía]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramírez-Mayans]]></surname>
<given-names><![CDATA[Jaime Alfonso]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Angeles Ciudad Juárez  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Nacional de Pediatría Servicio de Gastroenterología y Nutrición Pediátrica ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Hospital Infantil &#8220;Eva Sámano de López Mateos&#8221; Hospital Angeles Morelia Servicio de Gastroenterología y Nutrición Pediátrica]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2025</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2025</year>
</pub-date>
<volume>23</volume>
<numero>4</numero>
<fpage>329</fpage>
<lpage>333</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-72032025000400329&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-72032025000400329&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-72032025000400329&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Introducción:  Los síntomas gastrointestinales persistentes en lactantes han propiciado el uso y cambio de una fórmula infantil por otra.  Objetivo:  Describir el motivo, fórmula y cantidad de cambios en los primeros meses de vida previo a una consulta en gastroenterología pediátrica.  Material y métodos:  Se incluyeron 300 pacientes menores de 24 semanas de edad alimentados con fórmula que acudieron a consulta de gastroenterología pediátrica. Se preguntó la edad al primer cambio de fórmula, motivo, persona que lo prescribió y número de cambios antes de acudir a dicha consulta. Las variables cualitativas se analizaron con frecuencia y porcentajes, y se realizó una correlación de Spearman entre las variables.  Resultados:  La principal causa de cambio de fórmula fue irritabilidad y fue prescrita por un pediatra en la mayoría de los casos. A menor edad al primer cambio de fórmula, mayor cantidad de cambios al acudir a consulta en gastroenterología pediátrica. El cambio más común fue por la misma fórmula, pero diferente marca, y la mayoría acudieron por decisión propia.  Conclusiones:  La actualización médica continua prevendrá el cambio indiscriminado de fórmulas y la referencia oportuna a gastroenterología pediátrica.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Introduction:  Persistent gastrointestinal symptoms have led to the use and change from one infant formula to another.  Objective:  To describe the reason, formula, and changes in the first months of life before a consultation in pediatric gastroenterology.  Material and methods:  The study included 300 patients under 24 weeks of age who were fed infant formula and attended pediatric gastroenterology consultations. The age at the first formula change, the reason, the person who prescribed the change, and the number of changes before attending said consultation were asked. The qualitative variables were analyzed using frequency and percentages, and a Spearman correlation was performed between the variables.  Results:  The leading cause of the formula change was irritability, which a pediatrician prescribed. The younger the age at the time of the first formula change, the greater the number of changes at the time of consultation in pediatric gastroenterology. The most common change was for the same formula, but a different brand, and most patients went to the pediatric gastroenterology specialist based on their own decisions.  Conclusions:  Continuous medical updating will prevent the indiscriminate change of formulas and a timely referral to pediatric gastroenterology.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[fórmula infantil]]></kwd>
<kwd lng="es"><![CDATA[enfermedades gastrointestinales]]></kwd>
<kwd lng="es"><![CDATA[eje microbiota-intestino-cerebro]]></kwd>
<kwd lng="es"><![CDATA[pediatría]]></kwd>
<kwd lng="en"><![CDATA[infant formula]]></kwd>
<kwd lng="en"><![CDATA[gastrointestinal diseases]]></kwd>
<kwd lng="en"><![CDATA[microbiota-gut-brain axis]]></kwd>
<kwd lng="en"><![CDATA[pediatrics]]></kwd>
</kwd-group>
</article-meta>
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