[Appropriate use of diagnostic esophagogastroduodenoscopy and its relation with positive results].

Introduction: Upper gastrointestinal endoscopy is a sensitive and safe procedure, but expensive and with certain risks. The range of inappropriate use of upper gastrointestinal endoscopy in open access system is between 5.6 to 61.

[Association between symptomatic gastroesophageal reflux and Barrett's esophagus].

Background Data: Barrett esophagus is a proximal displacement of the squamocolumnar junction relative to the gastroesophageal junction with intestinal metaplasia, it has been linked to gastroesophageal reflux disease. However, it has been observed in individuals without gastroesophageal reflux symptoms, with prevalence up to 25% in 50 years older men.

Objective: Assess the association between symptomatic gastroesophageal reflux and Barrett's esophagus.