<?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>S2444-64832019000600327</article-id>
<article-id pub-id-type="doi">10.24875/end.m19000118</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Impacto de la endoscopia sistemática alfanumérica codificada versus la endoscopia convencional en la detección de lesiones gástricas premalignas en el hospital juárez de México]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Santacreo-Posas]]></surname>
<given-names><![CDATA[Martha Julia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Antonio-Manrique]]></surname>
<given-names><![CDATA[Martín]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Chávez-García]]></surname>
<given-names><![CDATA[Miguel Ángel]]></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[Álvarez Castello]]></surname>
<given-names><![CDATA[Rafael]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Juárez de México Servicio de Endoscopia Gastrointestinal ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2019</year>
</pub-date>
<volume>31</volume>
<fpage>327</fpage>
<lpage>333</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2444-64832019000600327&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2444-64832019000600327&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2444-64832019000600327&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El cáncer gástrico es la segunda causa más común de muerte por cáncer en todo el mundo. En México, la tasa de detección de cáncer gástrico temprano es baja (10% a 20%), lo que resulta en un tratamiento principalmente paliativo. El enfoque de la Endoscopia Sistemática Alfanumérica Codificada (ESAC) ha sido propuesto para mejorar la calidad de la EGD facilitando el examen completo del tracto gastrointestinal superior basado en documentación fotográfica simple, secuencial y sistemática.  Objetivo: Determinar el impacto de la endoscopia sistemática alfa numérica codificada en la detección de lesiones gástricas pre malignas.  Material y métodos: Estudio transversal, de cohorte, prospectivo, unicentrico. Se incluyeron todos los pacientes referidos al servicio de endoscopia del Hospital Juárez de México con diagnóstico de dispepsia en el periodo abril-junio 2019 y se sometieron en orden de uno a uno a EGD convencional y EGD sistemática alfanumérica codificada respectivamente. Se analizó: media de edad, género, IMC, comorbilidades, hábitos, nivel socioeconómico, consumo de IBP&#8217;s, antecedentes familiares de cáncer gástrico, tiempo del procedimiento, visibilidad endoscópica, diagnóstico endoscópico y diagnóstico histopatológico, índice de detección de lesiones.  Resultados: Se incluyeron 57 pacientes con una edad promedio de 54.8 años. Hombres 24.5% (n=14) y 75.4% (n=43) mujeres. IMC promedio de 27.3. El 98.2% de los pacientes fueron con nivel socioeconómico bajo. Del total de pacientes, 28 (49%) fueron sometidos a ESCA y 29 (51%) a endoscopia convencional. El tiempo promedio de cada estudio fue de 17.14 minutos para la técnica convencional y 17.39 minutos para la técnica ESCA, (IC 95% -2.37-1.86; p 0.81) estadísticamente no significativo. Se alcanzó una buena visibilidad en el 98.2% (Bhandari 2 89.5%). Se cuenta con la confirmación histopatológica de 26 estudios: 50% 13/26 gastritis crónica asociada a H. pylori, 15% 4/26 con diagnóstico de metaplasia intestinal y 3.8% (1/26) displasia de alto grado. Con la técnica convencional se obtuvo un 37% de exactitud diagnóstica, valor predictivo negativo (VPN) del 72% y un índice de detección de lesiones premalignas del 10.52%. La técnica ESAC tuvo una exactitud diagnóstica del 28.5% y un VPN del 100%.  Conclusiones: En este estudio la ESAC demostró ser mejor en cuanto a VPN sin embargo la endoscopia convencional tuvo una exactitud diagnostica y un índice de detección de lesiones gástricas premalignas más alta. No existe diferencia en cuanto al tiempo de duración de los estudios endoscópicos entre ambas técnicas.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Summary Gastric cancer is the second most common cause of cancer death worldwide. In Mexico, the detection rate of early gastric cancer is low (10% to 20%), which results in a mainly palliative treatment. The Codified Alphanumeric Systematic Endoscopy (ESAC) approach has been proposed to improve the quality of EGD by facilitating the complete examination of the upper gastrointestinal tract based on simple, sequential and systematic photographic documentation.  Objective: To determine the impact of encoded alpha numerical systematic endoscopy in the detection of pre malignant gastric lesions.  Material and methods: Cross-sectional, cohort, prospective, unicentric study. All patients referred to the endoscopy service of the Hospital Juárez de México with diagnosis of dyspepsia in the period April-June 2019 were included and were submitted in order of one to one conventional EGD and systematic alphanumeric EGD coded respectively. The following were analyzed: average age, gender, BMI, comorbidities, habits, socioeconomic status, consumption of PPIs, family history of gastric cancer, time of the procedure, endoscopic visibility, endoscopic diagnosis and histopathological diagnosis, index of lesion detection.  Results: 57 patients with an average age of 54.8 years were included. Men 24.5% (n = 14) and 75.4% (n = 43) women. Average BMI of 27.3. 98.2% of the patients were with low socioeconomic status. Of the total patients, 28 (49%) were subjected to ESCA and 29 (51%) to conventional endoscopy. The average time of each study was 17.14 minutes for the conventional technique and 17.39 minutes for the ESCA technique, (95% CI -2.37-1.86, p 0.81) statistically non-significant. Good visibility was achieved in 98.2% (Bhandari 2 89.5%). The histopathological confirmation of 26 studies is available: 50% 13/26 chronic gastritis associated with H. pylori, 15% 4/26 with a diagnosis of intestinal metaplasia and 3.8% (1/26) high grade dysplasia. With the conventional technique, 37% diagnostic accuracy, negative predictive value (NPV) of 72% and a detection rate of premalignant lesions of 10.52% were obtained. The ESAC technique had a diagnostic accuracy of 28.5% and a NPV of 100%.  Conclusions: In this study the ESAC proved to be better in terms of NPV, however conventional endoscopy had a diagnostic accuracy and a higher detection rate of premalignant gastric lesions. There is no difference in the duration of endoscopic studies between both techniques.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Endoscopia]]></kwd>
<kwd lng="es"><![CDATA[Cáncer gástrico temprano]]></kwd>
<kwd lng="es"><![CDATA[Lesiones preneoplasicas]]></kwd>
<kwd lng="en"><![CDATA[Endoscopy]]></kwd>
<kwd lng="en"><![CDATA[Early gastric cancer]]></kwd>
<kwd lng="en"><![CDATA[Preneoplasic lesions]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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