<?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>2444-6483</journal-id>
<journal-title><![CDATA[Endoscopia]]></journal-title>
<abbrev-journal-title><![CDATA[Endoscopia]]></abbrev-journal-title>
<issn>2444-6483</issn>
<publisher>
<publisher-name><![CDATA[Asociación Mexicana de Endoscopia Gastrointestinal A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2444-64832019000100004</article-id>
<article-id pub-id-type="doi">10.24875/end.m19000002</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Guía de abordaje y manejo endoscópico de la hemorragia de tubo digestivo bajo]]></article-title>
<article-title xml:lang="en"><![CDATA[Guide to endoscopic management and treatment of low digestive tract hemorrhage]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Blanco-Vela]]></surname>
<given-names><![CDATA[Claudia Isabel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Peláez-Luna]]></surname>
<given-names><![CDATA[Mario]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Solana-Sentíes]]></surname>
<given-names><![CDATA[Sergio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez-García]]></surname>
<given-names><![CDATA[Clara Luz]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández-Guerrero]]></surname>
<given-names><![CDATA[Angélica I.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cerna-Cardona]]></surname>
<given-names><![CDATA[Jony]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Noble-Lugo]]></surname>
<given-names><![CDATA[Alejandra]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bada-Yllán]]></surname>
<given-names><![CDATA[Orlando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Blanco-Velasco]]></surname>
<given-names><![CDATA[Gerardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández-Mondragón]]></surname>
<given-names><![CDATA[Óscar Víctor]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez-Camacho]]></surname>
<given-names><![CDATA[Claudia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zamorano-Orozco]]></surname>
<given-names><![CDATA[Yolanda]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zárate-Guzmán]]></surname>
<given-names><![CDATA[Ángel Mario]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López-Acosta]]></surname>
<given-names><![CDATA[María Elena]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez-Chávez]]></surname>
<given-names><![CDATA[Xochiquetzal]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Manzano-Robleda]]></surname>
<given-names><![CDATA[María del Carmen]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Reyes-Dorantes]]></surname>
<given-names><![CDATA[Ángel Andrés]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rocha-Ramírez]]></surname>
<given-names><![CDATA[José Luis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez-Robles]]></surname>
<given-names><![CDATA[Juan Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Soto-Solís]]></surname>
<given-names><![CDATA[Rodrigo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Montejo-Ruiz]]></surname>
<given-names><![CDATA[Gerardo Alfredo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital San Ángel Inn Universidad Servicio de Gastroenterología ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán Departamento de Gastroenterología ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Hospital Central Ignacio Morones Prieto Servicio de Endoscopia ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Hospital San Ángel Inn Universidad Servicio Endoscopia ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Instituto Nacional de Cancerología Servicio de Endoscopia ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af6">
<institution><![CDATA[,Hospital Juárez de México Servicio de Endoscopia ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af7">
<institution><![CDATA[,Hospital Español Departamento de Enseñanza ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af8">
<institution><![CDATA[,Hospital General Dr. Manuel Gea González División de Cirugía General y Endoscópica ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af9">
<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="A10">
<institution><![CDATA[,Hospital General Regional N.º 1 Dr. Carlos MacGregor Sánchez-Navarro Servicio de Endoscopia ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="A11">
<institution><![CDATA[,Hospital General de México Dr. Eduardo Liceaga Unidad de Endoscopia ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="A12">
<institution><![CDATA[,Hospital Ángeles Lomas Servicio de Endoscopia ]]></institution>
<addr-line><![CDATA[ Estado de México]]></addr-line>
<country>México</country>
</aff>
<aff id="A13">
<institution><![CDATA[,Hospital San Ángel Inn Patriotismo Servicio de Endoscopia ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="A14">
<institution><![CDATA[,Asociación Mexicana de Endoscopia Gastrointestinal  ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="A15">
<institution><![CDATA[,Hospital San Ángel Inn Universidad Cirugía de Colon y Recto ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="A16">
<institution><![CDATA[,Hospital Central Militar Servicio de Colon y Recto ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="A17">
<institution><![CDATA[,Centro Médico Nacional 20 de Noviembre Servicio de Endoscopia ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="A18">
<institution><![CDATA[,Centro Médico ABC Servicio de Radiología e Imagen Molecular ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2019</year>
</pub-date>
<volume>31</volume>
<numero>1</numero>
<fpage>4</fpage>
<lpage>29</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2444-64832019000100004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2444-64832019000100004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2444-64832019000100004&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen La hemorragia de tubo digestivo bajo (HTDB) se define como la originada distal a la válvula ileocecal; su presentación clínica puede ser con hematoquecia, rectorragia o melena. La evaluación inicial debe incluir historia clínica rápida, examen físico y estudios de laboratorio para determinar la severidad de la hemorragia, etiología y posible localización de esta. El primer paso en el tratamiento de la hemorragia aguda de tubo digestivo bajo es evaluar el estado hemodinámico y la reanimación intensiva antes de realizar colonoscopia, que se mantiene como el método diagnóstico y terapéutico de elección. La información específica sobre su tratamiento es escasa por lo que el manejo suele adaptarse de las recomendaciones sobre el manejo de la hemorragia de tubo digestivo alto. También, a pesar de la existencia de diversas guías internacionales, su aplicación y disponibilidad en Mexico es limitada, por lo que la Asociación Mexicana de Endoscopia Gastrointestinal convocó a un grupo de gastroenterólogos, endoscopistas y coloproctólogos para revisar los avances en el manejo de la HTDB. La presente guía se enfoca en el origen, abordaje, tratamiento y seguimiento de la HTDB de acuerdo con directrices internacionales y a la disponibilidad de recursos humanos y tecnológicos en nuestro país. Para su realización se utilizó el método Delphi. La evaluación de la evidencia y grado recomendación se realizó utilizando el sistema GRADE (Grading of Recommendations, Assessment, Development and Evaluation) modificado.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Lower gastrointestinal bleeding (LGIB) localizes distal to the ileocecal valve. It presents either as hematochezia, rectal bleeding and melena in some cases. Initial approach must include a complete and detailed clinical and physical exam, laboratory exams in order to determine the severity and source of the hemorrhage. The first step in the treatment of LGIB is to asses and stabilize the patient hemodynamic status and prepare for colonoscopy, which remains the best diagnostic and therapeutic tool. Although LGIB accounts for a significant number of emergencies an hospital admissions, management information usually comes from data obtained and adjusted for upper gastrointestinal bleeding studies. Despite several guidelines have been published, its availability and applicability in our country is limited, therefore, the Asociación Mexicana de Endoscopia Gastrointestinal summoned a group of gastroenterologists, endoscopists and colon and rectum surgeons in order to review, discuss and grade current data on LGIB in order to develop management recommendations for LGIB. The resultant guideline focuses on the etiology, management and follow up of patients presenting LGIB in accordance to international standards and resources available in our country. Guidelines were developed using the Delphi method and evidence was grades using the modified Grading of Recommendations, Assessment, Development and Evaluation System).]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Hemorragia tubo digestivo]]></kwd>
<kwd lng="es"><![CDATA[Colonoscopia]]></kwd>
<kwd lng="es"><![CDATA[Hematoquecia]]></kwd>
<kwd lng="es"><![CDATA[Rectorragia]]></kwd>
<kwd lng="es"><![CDATA[Guías de manejo clínico]]></kwd>
<kwd lng="en"><![CDATA[Gastrointestinal bleeding]]></kwd>
<kwd lng="en"><![CDATA[Colonoscopy]]></kwd>
<kwd lng="en"><![CDATA[Hematochezia]]></kwd>
<kwd lng="en"><![CDATA[Rectal bleeding]]></kwd>
<kwd lng="en"><![CDATA[Clinical guidelines]]></kwd>
</kwd-group>
</article-meta>
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