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Scand J Gastroenterol. 2000 Mar;35(3):255-9.

Helicobacter pylori infection is a major risk factor for gastric carcinoma in young patients.

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  • 1First Dept. of Internal Medicine, Hiroshima University School of Medicine, Japan.

Abstract

BACKGROUND:

Helicobacter pylori has been established as a risk factor for gastric carcinoma (GCa). Since before the discovery of H. pylori, atrophic gastritis and intestinal metaplasia have been linked to GCa, especially the intestinal-type tumor. The prevalence of H. pylori infection and atrophic gastritis increase with age. Thus, analysis of H. pylori infection in young patients with GCa could help clarify the role of this bacterium in the development of GCa. Accordingly, we investigated the relationship between H. pylori infection, GCa, and histologic gastritis in patients less than 30 years old.

METHODS:

Fifty GCa patients less than 30 years (mean, 26.4 years) and 100 sex- and age-matched controls (mean, 26.8 years) were examined for the presence of H. pylori infection and histologic gastritis.

RESULTS:

The prevalence of H. pylori infection was significantly higher in GCa patients than in controls (94% versus 40%, P < 0.01). Its prevalence was not associated with tumor location, tumor stage, or histologic type. Gastritis, atrophy, and intestinal metaplasia significantly increased the risk of GCa. By means of multiple logistic regression analysis, the odds ratio for the risk of GCa in H. pylori-positive subjects was found to be 23.5 (95% confidence interval, 6.84-80.7).

CONCLUSIONS:

We confirmed a strong association between H. pylori infection and GCa in young patients. Along with H. pylori infection, histologic gastritis might play an important role in the pathogenesis of GCa in these patients.

PMID:
10766317
[PubMed - indexed for MEDLINE]
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