[Helicobacter pylori infection in gastric cancer].

The relationship between Helicobacter pylori (H. pylori) infection and gastric cancer becomes the topics in the world, since some reports thereon in 1991. The purpose of this study was to know the prevalence of H. pylori infection in many patients with gastric cancer. We examined the H. pylori IgG antibody in 507 patients with gastric cancer resected surgically in our hospital from 1989 to 1991, retrospectively. For the test of H. pylori IgG antibody, HM-CAP EIA kit (Italy, ENTERIC PRODUCTS Co.) was used. The overall detection rate of H. pylori IgG antibody was 75% (378/507). H. pylori infection was significant significantly frequent in early cancer (80%, 231/288) than advanced cancer (67%, 147/219). But, the other clinicopathological features such as sex, age, histological type, location and the degree of intestinal metaplasia were not significantly correlated with H. pylori infection. To evaluate the risk of H. pylori infection for gastric cancer, we are going to plan a matched-pair case-control study.