<?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>S2444-64832019000300108</article-id>
<article-id pub-id-type="doi">10.24875/end.19000021</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Impacto del uso de los inhibidores de la bomba de protones en el fenotipo endoscópico de pacientes con reflujo gastroesofágico]]></article-title>
<article-title xml:lang="en"><![CDATA[Impact of the use of proton pump inhibitors in the endoscopic phenotype of patients with gastroesophageal reflux]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez-Mendoza]]></surname>
<given-names><![CDATA[Ariel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Jiménez-Córdoba]]></surname>
<given-names><![CDATA[Rafael R.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López-Alcaraz]]></surname>
<given-names><![CDATA[Reyna M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sepúlveda-Cañamar]]></surname>
<given-names><![CDATA[Francisco J.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Mexicano del Seguro Social Unidad Médica de Atención Ambulatoria N.º 7 Departamento de Endoscopia]]></institution>
<addr-line><![CDATA[Monterrey Nuevo León]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Mexicano del Seguro Social Unidad Médica de Atención Ambulatoria N.º 7 Departamento de Oftalmología]]></institution>
<addr-line><![CDATA[Monterrey Nuevo León]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2019</year>
</pub-date>
<volume>31</volume>
<numero>3</numero>
<fpage>108</fpage>
<lpage>114</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2444-64832019000300108&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2444-64832019000300108&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2444-64832019000300108&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Objetivos: Determinar si la frecuencia de los diferentes fenotipos endoscópicos en la enfermedad por reflujo gastroesofágico se modifica en pacientes que no tomaron inhibidores de la bomba de protones antes de la endoscopia digestiva superior.  Métodos: Se realizó un estudio retrospectivo y comparativo de los hallazgos endoscópicos (basados en la Clasificación de Los Ángeles) en pacientes mayores de 18 años con síntomas predominantemente típicos de reflujo gastroesofágico.  Resultados: Se evaluaron 114 pacientes, 56 (49.1%) consumían algún inhibidor de la bomba de protones (IBP) antes de la endoscopia y 58 (50.9%) no lo tomaron al menos siete días previos a la endoscopia. No hubo diferencias entre ambos grupos con respecto a edad, sexo, peso, tabaquismo y etilismo. Se observaron diferencias significativas en la frecuencia de esofagitis: fue más frecuente en los pacientes que no tomaron el IBP antes del procedimiento endoscópico (23.2 vs. 41.35%, p &lt; 0.001). En el subanálisis entre los grados de esofagitis, la diferencia fue más significativa en aquellos con grado B y D (esofagitis grado A: 10.71 vs. 15.51%, p = 0.131; esofagitis grado B: 5.35 vs. 13.79%, p = 0.002; esofagitis grado C: 5.35 vs. 5.17%, p = 0.930; esofagitis grado D: 1.78 vs. 6.89%, p = 0.007). La esofagitis leve (grados A y B) fue más frecuente en el grupo que no tomó el IBP (16.07 vs. 29.31, p = 0.001); esta diferencia fue menor en el grupo con esofagitis severa (grados C y D) (7.14 vs. 12.06%, p = 0.075).  Conclusiones: El uso de IBP antes de la endoscopia digestiva superior parece modificar el fenotipo endoscópico en pacientes con síntomas típicos de enfermedad por reflujo gastroesofágico.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Objectives: To determine whether the frequency of endoscopic phenotypes in gastroesophageal reflux disease is modified in those patients who did not consume proton pump inhibitors (PPI) before upper gastrointestinal endoscopy.  Methods: A retrospective and comparative study of endoscopic findings (according to Los Angeles Classification) was performed in patients older than 18 years, with predominantly typical symptoms of gastroesophageal reflux.  Results: 114 patients were evaluated, 56 (49.1%) received PPI before endoscopy and 58 (50.9%) discontinued PPI. There were no differences in age, gender, weight, smoking and alcoholism in both groups. Significant differences were observed in the frequency of esophagitis, it was more frequent in patients who discontinued PPI before the endoscopic procedure (23.2 vs. 41.35%, p &lt; 0.001). In the sub analysis between the grades of esophagitis, the difference was more significant in those with grade B and D (grade A esophagitis: 10.71 vs. 15.51%, p = 0.131; grade B esophagitis: 5.35 vs. 13.79%, p = 0.002; grade C esophagitis: 5.35 vs. 5.17%, p = 0.930; grade D esophagitis: 1.78 vs. 6.89%, p = 0.007). Mild esophagitis (grades A and B) was more frequent in the group without PPI (16.07 vs. 29.31, p = 0.001); this difference was less significant in the group with severe esophagitis (grades C and D) (7.14 vs. 12.06%, p = 0.075).  Conclusions: The use of PPI before upper gastrointestinal endoscopy seems to modify the endoscopic phenotype in patients with typical symptoms of gastroesophageal reflux disease.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[ERGE]]></kwd>
<kwd lng="es"><![CDATA[Esofagitis por reflujo]]></kwd>
<kwd lng="es"><![CDATA[Endoscopia]]></kwd>
<kwd lng="es"><![CDATA[Reflujo no erosivo]]></kwd>
<kwd lng="es"><![CDATA[IBP]]></kwd>
<kwd lng="en"><![CDATA[GERD]]></kwd>
<kwd lng="en"><![CDATA[Reflux esophagitis]]></kwd>
<kwd lng="en"><![CDATA[Endoscopy]]></kwd>
<kwd lng="en"><![CDATA[Non-erosive reflux]]></kwd>
<kwd lng="en"><![CDATA[PPI]]></kwd>
</kwd-group>
</article-meta>
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