期刊
ANNALS OF INTERNAL MEDICINE
卷 134, 期 5, 页码 380-386出版社
AMER COLL PHYSICIANS
DOI: 10.7326/0003-4819-134-5-200103060-00010
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Background: Glandular atrophy and intestinal metaplasia are precancerous lesions; whether Helicobacter pylori eradication affects: these lesions is controversial. Objective: To determine whether H. pylori eradication is associated with improvement in glandular atrophy and intestinal metaplasia after at least 1 year. Design: Single-blind, uncontrolled prospective trial. Setting: Academic gastroenterology clinic in Japan. Patients: 163 consecutive patients with dyspepsia and H. pylori infection. Intervention: One-week course of a proton-pump inhibitor and antibiotic therapy. Measurements: Endoscopic examination with antral and corporal biopsy was done before treatment and at 1 to 3 and 12 to 15 months after treatment. Gastritis, atrophy, and metaplasia were graded according to the updated Sydney System. Results: In the 115 patients in whom H. pylori was eradicated, inflammation and mean neutrophil activity had decreased by 1 to 3 months, and both glandular atrophy in the corpus and intestinal metaplasia in the antrum had decreased by 12 to 15 months. Glandular atrophy in the corpus improved in 34 (89%) of 38 patients with atrophy before treatment, and intestinal metaplasia in the antrum improved in 28 (61%) of 46 patients who had metaplasia at baseline, In the 48 patients in whom eradication was unsuccessful, no significant histologic changes were observed. Conclusion: In the year after successful H. pylori eradication, precancerous lesions improved in most patients.
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