TITLE

Factors predicting progression of gastric intestinal metaphasia: results of a randomised trial on Helicobacter pylon eradication

AUTHOR(S)
Leung, W. K.; Lin, S. -R.; Ching, J. Y. L.; To, K. -F.; Ng, E. K. W.; Chan, F. K. L.; Lau, J. Y. W.; Sung, J. J. Y.
PUB. DATE
September 2004
SOURCE
Gut;Sep2004, Vol. 53 Issue 9, p1244
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Background and aim: Gastric intestinal metaplasia (IM) is generally considered to be a precancerous lesion in the gastric carcinogenesis cascade. This study identified the risk factors associated with progression of IM in a randomised control study. Subjects and methods: A total of 587 Helicobacter Pylori infected subjects were randomised to receive a one week course of anti-Helicobacter therapy (omeprazole, amoxicillin, and clarithromycin (OAC)) or placebo. Subjects underwent endoscopy with biopsy at baseline and at five years. Severity of IM was graded according to the updated Sydney classification and progression was defined as worsening of IM scores at five years in either the antrum or corpus, or development of neoplasia. Backward stepwise multiple logistic regression was used to identify independent risk factors associated with IM progression. Results: Of 435 subjects (220 in the OAC and 215 in the placebo group) available for analysis, 10 developed gastric cancer and three had dysplasia. Overall progression of IM was noted. in 52.9% of subjects. Univariate analysis showed that persistent H Pylori infection, age >45 years, male subjects, alcohol use, and drinking water from a well were significantly associated with IM progression. Duodenal ulcer and OAC treatment were associated with a reduced risk of histological progression. Progression of IM was more frequent in those with more extensive and more severe IM at baseline. With multiple logistic regression, duodenal ulcer (odds ratio (OR) 0.23 (95% confidence interval (CI) 0.09-0.58)) was found to be an independent protective factor against IM progression. Conversely, persistent H Pylori infection (OR 2.13(95% Cli .41 -3.24)), age >45 years (OR 1.92(95% CII .18-3.11)), alcohol use (OR 1.67 (95% Cl 1.07-2.62)), and drinking water from a well (OR 1.74(95% CI 1.13-2.67)) were independent risk factors associated with IM progression. Conclusion: Eradication of H Pylori is protective against progression of premalignant gastric lesions.
ACCESSION #
14434502

 

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