[Campylobacter pyloridis in peptic ulcer].

To study the role of Campylobacter pyloridis (CP) in the etiology of peptic ulcer and chronic gastritis, biopsies were obtained from gastric and duodenal mucosa of 54 ulcer patients and 8 healthy controls. In normal histological appearance and moderate gastritis without signs of exacerbation CP were not registered contrary to atrophic antral gastritis demonstrating CP irrespective of ulcer location. CP resided on the epithelium under the mucous layer between epitheliocytes. Contamination proved mild in 13%, moderate in 50% and profound in 80% of cases. CP were associated with peptic ulcer in 78% of relevant patients, with duodenal ulcer in 80% of those. The duodenal presentation was observed only in the regions of gastric metaplasia. CP did not occur in fundal mucosa, ulcer boundaries and intestinal metaplasia. There was no significant difference in CP amount at various ulcer sites. It is suggested that CP may play a role in the etiology and pathogenesis of peptic ulcer.