<?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>S1665-11462021000500418</article-id>
<article-id pub-id-type="doi">10.24875/bmhim.20000391</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Prevalence of ankyloglossia in newborns and impact of frenotomy in a Baby-Friendly Hospital]]></article-title>
<article-title xml:lang="es"><![CDATA[Prevalencia de la anquiloglosia en el recién nacido e impacto de la frenotomía en un hospital de la Iniciativa para la Humanización de la Asistencia al Nacimiento y la Lactancia]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Barberá-Pérez]]></surname>
<given-names><![CDATA[Paula M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sierra-Colomina]]></surname>
<given-names><![CDATA[Montserrat]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Deyanova-Alyosheva]]></surname>
<given-names><![CDATA[Nyulyufer]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Plana-Fernández]]></surname>
<given-names><![CDATA[Mariano]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lalaguna-Mallada]]></surname>
<given-names><![CDATA[Paula]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital de Barbastro Servicio de Pediatría ]]></institution>
<addr-line><![CDATA[Huesca ]]></addr-line>
<country>Spain</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital de Barbastro Enfermería del Servicio de Pediatría ]]></institution>
<addr-line><![CDATA[Huesca ]]></addr-line>
<country>Spain</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>10</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>10</month>
<year>2021</year>
</pub-date>
<volume>78</volume>
<numero>5</numero>
<fpage>418</fpage>
<lpage>423</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1665-11462021000500418&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1665-11462021000500418&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1665-11462021000500418&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Background: Ankyloglossia is a condition present in some newborns and can be associated with breastfeeding difficulties, leading to symptoms in the child and the mother. This study aimed to analyze the characteristics of newborns with tongue-tie and the symptoms reported by their mothers, and the short and long-term outcomes of frenotomy.  Methods: We conducted a prospective and observational 7-month study in a Baby-Friendly Hospital (BFH). We included all the breastfed newborns without comorbidities that underwent a frenotomy.  Results: A total of 33 frenotomies were performed. The most common findings before the procedure were maternal breastfeeding pain (29/33), ineffective latch (18/33), and maternal nipple lesions (18/33). We observed that newborns surgically intervened later showed a high incidence of jaundice (p = 0.03), weight loss greater than 10% at hospital discharge (p = 0.004), and their mothers experienced pain more often (p = 0.004). At one month of age, there was an improvement in breastfeeding-related pain (p = 0.012) and its intensity (p = 0.016), the presence of maternal cracked nipples (p &lt; 0.01), and latching on (p &lt; 0.01).  Conclusions: Ankyloglossia can prevent the correct establishment of breastfeeding. Frenotomy is associated with few complications, and when appropriately indicated, may have a positive impact on breastfeeding, reducing maternal pain, the presence of nipple lesions, and latching problems.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción: La anquiloglosia está presente en algunos recién nacidos y puede interferir en el amamantamiento, produciendo sintomatología en el niño y en la madre. El objetivo de este estudio fue analizar las características de los recién nacidos con anquiloglosia, así como la sintomatología referida por sus madres, y la evolución tras la frenotomía.  Métodos: Estudio observacional analítico prospectivo de las frenotomías realizadas en la planta de maternidad de un hospital IHAN (Iniciativa para la Humanización de la Asistencia al Nacimiento y la Lactancia) durante 7 meses. Se incluyeron todos los recién nacidos alimentados inicialmente con lactancia materna a quienes se realizó una frenotomía.  Resultados: Se realizaron 33 frenotomías. Los hallazgos más frecuentes previos a la frenotomía fueron dolor con las tomas (29/33), dificultad en el agarre (18/33) y presencia de grietas (18/33). Asimismo, se vio que los pacientes intervenidos más tarde presentaban con mayor frecuencia ictericia (p = 0.03) y pérdida de peso superior al 10% previa al alta (p = 0.004), y sus madres presentaron dolor con mayor frecuencia (p = 0.004). Al mes de vida se observó la mejoría del dolor con las tomas (p = 0.012) y su intensidad (p = 0.016), la presencia de grietas (p &lt; 0.01) y el agarre al pecho (p &lt; 0.01).  Conclusiones: La anquiloglosia puede impedir el correcto establecimiento de la lactancia materna. La frenotomía presenta escasas complicaciones y, cuando está bien indicada, puede mejorar el amamantamiento, reduciendo el dolor, la presencia de grietas y las dificultades en el agarre.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Ankyloglossia]]></kwd>
<kwd lng="en"><![CDATA[Tongue-tie]]></kwd>
<kwd lng="en"><![CDATA[Frenotomy]]></kwd>
<kwd lng="en"><![CDATA[Breastfeeding]]></kwd>
<kwd lng="en"><![CDATA[Lactation]]></kwd>
<kwd lng="es"><![CDATA[Anquiloglosia]]></kwd>
<kwd lng="es"><![CDATA[Frenillo lingual corto]]></kwd>
<kwd lng="es"><![CDATA[Frenotomía]]></kwd>
<kwd lng="es"><![CDATA[Lactancia materna]]></kwd>
<kwd lng="es"><![CDATA[Lactancia]]></kwd>
</kwd-group>
</article-meta>
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