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  • Title: Helicobacter pylori eradication and antral intestinal metaplasia--two years follow-up study.
    Author: Ciok J, Dzieniszewski J, Lucer C.
    Journal: J Physiol Pharmacol; 1997 Sep; 48 Suppl 4():115-22. PubMed ID: 9440062.
    Abstract:
    Intestinal metaplasia (IM) appears to be an important stage in the pathogenesis of intestinal type of gastric cancer. The purpose of the study was to evaluate how H. pylori eradication modifies IM in gastric antrum. 35 patients (19 M + 16 F) with peptic ulcer (28 duodenal ulcer +7 gastric ulcer) and antral IM with accompanying H. pylori infection proven by urease test and histological examination were followed-up after healing an ulcer achieved by 14 days treatment with 40 mg/d omeprazole and 2 g/d amoxicillin. Endoscopy examination was done every 4 months during 2 years after eradication. At least two antral biopsies were taken during each endoscopy. H. pylori eradication was achieved in 23 patients (66%). No reinfection was observed during the time of observation. The medium grade of intestinal metaplasia after eradication of H. pylori declined from 1.76 to 0.57 over the period of follow-up (p < 0.01). The difference became statistically significant from the 12 months after eradication. No significant change was seen in the group of non-eradicators (1.83 at the beginning of observation and 1.91 at the end point). Statistical difference between eradicators and non-eradicators was stated from the 12th month after eradication. Total regression of intestinal metaplasia was observed in 30% cases after one year and 61% cases after two years after H. pylori eradication. The cure of H. pylori infection significantly reduces the presence of antral IM. Regression of IM appears to be a long-term process taking many months after H. pylori eradication.
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