<?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>1665-1146</journal-id>
<journal-title><![CDATA[Boletín médico del Hospital Infantil de México]]></journal-title>
<abbrev-journal-title><![CDATA[Bol. Med. Hosp. Infant. Mex.]]></abbrev-journal-title>
<issn>1665-1146</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Salud, Hospital Infantil de México Federico Gómez]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1665-11462024000400250</article-id>
<article-id pub-id-type="doi">10.24875/bmhim.24000012</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Cor triatriatum dexter: an uncommon cause of neonatal cyanosis]]></article-title>
<article-title xml:lang="es"><![CDATA[Cor triatriatum dexter: una causa poco frecuente de cianosis neonatal]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández-Benítez]]></surname>
<given-names><![CDATA[Rodrigo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Reyes-Vázquez]]></surname>
<given-names><![CDATA[Horacio L.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Español de México Department of Pediatrics Service of Pediatric Cardiology]]></institution>
<addr-line><![CDATA[ Mexico City]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital Español de México Clínica Pigüi Department of Pediatrics]]></institution>
<addr-line><![CDATA[ Mexico City]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2024</year>
</pub-date>
<volume>81</volume>
<numero>4</numero>
<fpage>250</fpage>
<lpage>252</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1665-11462024000400250&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1665-11462024000400250&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1665-11462024000400250&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Background: Cor triatriatum dexter (CTD) is an extremely rare pathology, with an incidence of &lt; 0.4%. Its main characteristic is a partitioning of the right atrium by the persistence of the embryonic valve of the right sinus venosus.  Clinical case: In this report, we describe the case of a 7-day-old newborn who presented with persistent cyanosis associated with feeding and crying. The diagnosis of CTD was made after an echocardiogram and confirmed using cardiac magnetic resonance imaging. The patient underwent successful surgery on day 14 with a favorable outcome and without complications.  Conclusion: The importance of our case lies in the identification of rare heart disease as a cause of cyanosis and desaturation in a neonatal patient in the first days of life who did not present signs of heart failure and whose condition improved with supplemental oxygen. We also demonstrate that early diagnosis with echocardiography and surgical resolution resulted in clear clinical improvement and avoided future complications.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción: El cor triatriatum dexter es una cardiopatía muy rara, caracterizada por la división parcial del atrio derecho en dos cavidades por la persistencia de una membrana que embriológicamente representa la valva derecha del seno venoso.  Caso clínico: En este reporte de caso, presentamos el caso de un neonato en su día 7 de vida que acude a valoración por presentar desaturación persistente con cianosis al llanto. El diagnóstico se realizó con ecocardiograma posterior al cual se decidió la resección quirúrgica de la membrana, procedimiento que fue llevado a cabo el día 14 de vida con éxito sin complicaciones.  Conclusiones: La importancia de este caso clínico radica en la identificación de una cardiopatía rara como causa de cianosis y desaturación en un paciente en etapa neonatal, el cual no presentaba datos de compromiso hemodinámico. También se muestra como un diagnóstico y tratamiento quirúrgico oportuno permitieron una resolución de los síntomas sin complicaciones futuras.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Cor triatriatum dexter]]></kwd>
<kwd lng="en"><![CDATA[Congenital heart disease]]></kwd>
<kwd lng="en"><![CDATA[Cyanosis in neonates]]></kwd>
<kwd lng="en"><![CDATA[Right valve of the sinus venosus]]></kwd>
<kwd lng="en"><![CDATA[Case report]]></kwd>
<kwd lng="es"><![CDATA[Cor triatriatum dexter]]></kwd>
<kwd lng="es"><![CDATA[Cardiopatía congénita]]></kwd>
<kwd lng="es"><![CDATA[Cianosis en neonatos]]></kwd>
<kwd lng="es"><![CDATA[Válvula derecha del seno venoso]]></kwd>
<kwd lng="es"><![CDATA[Reporte de caso]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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