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Abstract
This study was designed to assess the relationship between gastric acid output (GAO) and both pattern of gastroesophageal reflux (GER) and severity of esophageal lesions. Gastric acid secretory testing and 24-h intraesophageal pH-monitoring were performed in 31 patients with esophagitis and concomitant duodenal ulcer (E + DU) and compared with those of 72 patients with esophagitis (E). The second aim of this study was to evaluate the role of GAO and other potential pathogenetic factors in the development of esophagitis. The results of the study showed that GAO in patients with E + DU was significantly higher than in patients with E (p < 0.05). There was no significant difference between the two groups of patients with regard to endoscopic findings or GER variables (p > 0.05). Multiple regression analysis with stepwise deletion showed that the presence of hiatal hernia, GER in the upright position and age appear to correlate significantly with the presence of esophagitis. We conclude that no parallel relationship exists between GAO and severity of GER or esophageal lesions in patients with E + DU and that GAO is not a major pathogenetic factor in GER disease.