[Chronic gastroduodenitis in children and Campylobacter pylori].

Gastric biopsies from 90 children (from 5- to 15-year-old) with chronic gastroduodenitis were examined for Campylobacter pylori (CP) by bacteriological, histological (Giemsa stain, argentation by Warthin-Starry, acridine orange stain) and electron microscopical methods. CP is detected in 81.2% children. The degree of colonization was low or moderate. The increase of occurrence was noted with age and duration of disease. Persistence of CP went down with the increase of atrophic change in the gastric mucosa and duodenum, but there was no clear-cut correlation with the morphological variant of gastritis and the stage of disease. Colonization with CP is regarded as an important part in the pathogenesis of chronic gastroduodenitis in children.