Background And Aim: Helicobacter pylori (H. pylori) and aspirin are the major causes of gastric injury, and eradication of H. pylori can restore mucosal injury such as gastric ulcer. The aim of the present study was to investigate the effects of low-dose aspirin on the healing process, determined by endoscopic features, after H. pylori eradication.
Methods: From 2001 to 2008, 12,887 patients underwent endoscopic examination at our hospital. From these, 100 patients with and 100 patients without H. pylori infection were analyzed to identify the endoscopic features characteristic of H. pylori-infected stomach. Based on these characteristic features, we observed the healing process of 89 patients not taking low-dose aspirin and 12 patients taking low-dose aspirin for 6 months, 1 year, and 5 years, which was successful in eradicating H. pylori.
Results: Diffuse redness (DR) of the fundic mucosa was the characteristic feature of H. pylori-infected stomach, whereas reddish streaks (RS) on the greater curvature of the antrum was the characteristic finding in non-infected stomach. In the no aspirin group, DR faded by 6 months and new expression of RS was observed 1 year after H. pylori eradication. In contrast, in the aspirin group, both fading of DR and the expression of RS were observed 5 years after eradication.
Conclusion: Low-dose aspirin delayed the early phase of the healing process in the gastric mucosa after H. pylori eradication.
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