<?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>S1665-11462020000700001</article-id>
<article-id pub-id-type="doi">10.24875/bmhim.20000083</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Metodología para la elaboración de la Guía de práctica clínica]]></article-title>
<article-title xml:lang="en"><![CDATA[Methodology for the development of the Clinical guideline for the diagnosis and treatment of precocious puberty]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Torres-Tamayo]]></surname>
<given-names><![CDATA[Margarita]]></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"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Aguilar-Herrera]]></surname>
<given-names><![CDATA[Blanca E.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Miranda-Lora]]></surname>
<given-names><![CDATA[América L.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Calzada-León]]></surname>
<given-names><![CDATA[Raúl]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rivera-Hernández]]></surname>
<given-names><![CDATA[Aleida J.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Morales-Pérez]]></surname>
<given-names><![CDATA[Marco A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Padrón-Martínez]]></surname>
<given-names><![CDATA[Miriam M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ruiz-Reyes]]></surname>
<given-names><![CDATA[María L.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Morales]]></surname>
<given-names><![CDATA[Leticia M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Barrón-Uribe]]></surname>
<given-names><![CDATA[Consuelo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arguinzoniz-Valenzuela]]></surname>
<given-names><![CDATA[Sletza L.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Torres-Castañeda]]></surname>
<given-names><![CDATA[Mayra C.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lizárraga-Paulin]]></surname>
<given-names><![CDATA[Lorena]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Núñez-Hernández]]></surname>
<given-names><![CDATA[Jorge A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cornejo-Barrera]]></surname>
<given-names><![CDATA[Judith]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vidal-González]]></surname>
<given-names><![CDATA[María T.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez-Alvarado]]></surname>
<given-names><![CDATA[María R.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Nishimura-Meguro]]></surname>
<given-names><![CDATA[Elisa]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bravo-Ríos]]></surname>
<given-names><![CDATA[Luz E.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Garrido-Magaña]]></surname>
<given-names><![CDATA[Eulalia P.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Orozco-Morales]]></surname>
<given-names><![CDATA[José A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Medina-Bravo]]></surname>
<given-names><![CDATA[Patricia G.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Coyote-Estrada]]></surname>
<given-names><![CDATA[Ninel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castilla-Peón]]></surname>
<given-names><![CDATA[M. Fernanda]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Nacional de Cardiología Ignacio Chávez  ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Mexicano del Seguro Social Centro Médico Nacional Siglo XXI ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Sociedad Mexicana de Endocrinología Pediátrica  ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Hospital Infantil de México Federico Gómez  ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Instituto Nacional de Pediatría  ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af6">
<institution><![CDATA[,Instituto Mexicano del Seguro Social Hospital General de Zona No. 18 ]]></institution>
<addr-line><![CDATA[Playa del Carmen Quintana Roo]]></addr-line>
<country>México</country>
</aff>
<aff id="Af7">
<institution><![CDATA[,Instituto Mexicano del Seguro Social Centro Médico Nacional La Raza ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af8">
<institution><![CDATA[,Instituto Mexicano del Seguro Social Hospital General Regional 220 ]]></institution>
<addr-line><![CDATA[ Estado de México]]></addr-line>
<country>México</country>
</aff>
<aff id="Af9">
<institution><![CDATA[,Instituto Materno Infantil del Estado de México  ]]></institution>
<addr-line><![CDATA[Toluca ]]></addr-line>
<country>México</country>
</aff>
<aff id="A10">
<institution><![CDATA[,Hospital Infantil de Tamaulipas  ]]></institution>
<addr-line><![CDATA[Ciudad Victoria Tamaulipas]]></addr-line>
<country>México</country>
</aff>
<aff id="A11">
<institution><![CDATA[,Hospital del Niño y el Adolescente Morelense  ]]></institution>
<addr-line><![CDATA[Cuernavaca Morelos]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2020</year>
</pub-date>
<volume>77</volume>
<fpage>1</fpage>
<lpage>6</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1665-11462020000700001&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1665-11462020000700001&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1665-11462020000700001&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción: La Sociedad Mexicana de Endocrinología Pediátrica presenta recomendaciones para el diagnóstico y el tratamiento de la pubertad precoz (PP), condición definida como el desarrollo de caracteres sexuales por incremento en la secreción hipofisiaria de gonadotropinas antes de los 8 años en las niñas y de los 9 años en los niños.  Métodos: Se realizaron tres revisiones sistemáticas de ensayos clínicos controlados sobre intervenciones para el tratamiento de la PP, pruebas diagnósticas y estudios observacionales sobre efectos a largo plazo de la PP. La evaluación de la calidad de los estudios y la extracción de datos se realizó por pares. La evidencia se graduó con el sistema de la Scottish Intercollegiate Guidelines Network (SIGN) y del Oxford Centre for Evidence-Based Medicine (OCEBM) para las recomendaciones sobre la intervención y el diagnóstico, respectivamente. Las recomendaciones generadas se sometieron a un consenso por el método Delphi y fueron validadas por otros 143 endocrinólogos pediatras certificados mediante un cuestionario en línea.  Resultados: Mediante consenso se generaron 12 recomendaciones para el diagnóstico de PP, siete sobre diagnóstico de causas secundarias de PP, ocho sobre intervenciones para inhibición de la pubertad, cinco sobre otras intervenciones en PP y 14 para la monitorización del tratamiento y el seguimiento de estos pacientes. Se obtuvo más del 90% de aprobación para cada una de las recomendaciones por el grupo de endocrinólogos certificados que respondieron el cuestionario en línea.  Conclusiones: Si bien se logró un alto grado de consenso para las recomendaciones para el diagnóstico, el tratamiento y la monitorización de la PP entre los endocrinólogos pediatras, el nivel de evidencia para la mayoría de estas recomendaciones resultó bajo.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Background: The Mexican Society of Pediatric Endocrinology presents recommendations for the diagnosis and treatment of precocious puberty (PP), a condition defined as the development of sexual characteristics due to an increase in pituitary gonadotropin secretion before 8 or 9 years of age in girls and boys, respectively.  Methods: Three systematic reviews were conducted: controlled clinical trials on interventions for PP treatment, diagnostic tests, and observational studies on the long-term effects of PP. The quality evaluation and data extraction from the studies were conducted by two independent reviewers. The Scottish Intercollegiate Guidelines Network and the Oxford Center for Evidence-Based Medicine systems were used for grading the quality of evidence for recommendations on intervention and diagnosis, respectively. Recommendations were submitted to a consensus by a Delphi method and were validated by another 143 certified pediatric endocrinologists through an online questionnaire.  Results: The group generated 12 recommendations on the diagnosis of PP, seven on the diagnosis of secondary causes of PP, eight on interventions for inhibition of puberty, five on other interventions for PP treatment, and 14 for the monitoring and follow-up of these patients. The online questionnaires submitted to certified pediatric endocrinologists showed more than 90% of approval for each one of the recommendations.  Conclusions: Although a high degree of consensus for the recommendations for diagnosis, treatment, and monitoring of PP among pediatric endocrinologists was achieved, most of these recommendations showed a low level of evidence.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Pubertad precoz]]></kwd>
<kwd lng="es"><![CDATA[Análogos de la hormona liberadora de gonadotropina]]></kwd>
<kwd lng="es"><![CDATA[Diagnóstico]]></kwd>
<kwd lng="es"><![CDATA[Tratamiento]]></kwd>
<kwd lng="es"><![CDATA[Guía de práctica clínica]]></kwd>
<kwd lng="en"><![CDATA[Precocious puberty]]></kwd>
<kwd lng="en"><![CDATA[Gonadotropin-releasing hormone analogs]]></kwd>
<kwd lng="en"><![CDATA[Diagnosis]]></kwd>
<kwd lng="en"><![CDATA[Treatment]]></kwd>
<kwd lng="en"><![CDATA[Clinical practice guideline]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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