[Characteristics of Helicobacter infections in gastroduodenal ulcers and their complications].

The presence of Helicobacter pylori (HP) was studied in 143 patients with ulcer disease of the stomach and duodenum. The urease test, immunoenzyme analysis, "AEROTEST" and culture of HP in laboratory conditions were used for diagnosis of HP. On the grounds of the culture method three degrees of colonization of the gastroduodenal mucosa were established. It was found that 96.3% of the patients were infected with HP, 86.3% of them having massive colonization. All the patients with complicated ulcers of the duodenum were HP-positive. A severe degree of the HP-infection with the predominant involvement of the antral part was characteristic of patients with bleeding ulcers; in patients with perforative ulcers and stenosis of the pyloric part the HP status is notable for considerably greater variability. Among the patients with gastric ulcers there was less amount of cases with HP (88.2%) as compared with those having duodenal ulcers. All patients with complicated disease were infected with HP, but there was nothing specific in colonization depending on.