RESUMO
Study on 82 gastritis patients (19-63 years old), in which 40 patients had endoscopic features of duodenogastric reflux and 42 had no endoscopic of duodenogastric reflux, were treated at 19.8 Hospital from December 2000 to October 2001. All subjects were assessed of gastric mucosa's damages in endoscopy and histology as well as Helicobacter pylori infection rate. The results: the rate of patients were infected with H.pylori significantly fewer than in group without duodenogastric reflux. The rate of H.pylori infection in mild duodenogastric reflux patients was significantly higher than the rate in moderate and severe duodenogastric reflux patients. In patients with both factors (duodenogastric reflux and H.pylori infection), chronic atrophic gastritis' rate was significantly higher compared with the rate of patients who had only one factor or non of both. In patients with duodenogastric reflux but without H.pylori infection: simply chronic gastritis' rate was significantly lower and chronic atrophic gastritis' rate was higher than group without duodenogastric reflux