[Helicobacter pylori: a new pathogen to be considered in infancy].

A prospective study in 11 consecutive children with gastroduodenal disease is presented. Endoscopic study and gastric biopsies were performed for histologic and bacteriologic research of H. pylori. Endoscopic studies in 7 of the patients showed lesions of antritis that were assessed by histopathologic study. H. pylori was isolated in 4 of them. The presence of H. pylori in the stomach of children with chronic gastritis is confirmed. It is remarked the importance of gastric biopsy, at least when the endoscopic study shows the presence of antral gastritis.