Abstract
To study the influence of Helicobacter pylori eradication on the incidence of ulcer recurrence during 12 months of follow-up in gastric ulcer patients. Seventy-three patients with gastric ulcer were prospectively studied. At endoscopy two biopsies from both antrum and body for haematoxylin-eosin staining and one for rapid urease test were obtained. Likewise, serology and 13C-urea breath test were carried out. Fifty-six H. pylori infected patients were monitored after giving an eradication therapy with omeprazole, clarithromycin and amoxicillin. A first control endoscopy was performed immediately after completing treatment to confirm ulcer healing. A second control endoscopy (with histologic study) and a breath test were performed one month after completing therapy (eradication was defined as the absence of H. pylori by both methods). Finally, an endoscopy was repeated at 6 and 12 months to study ulcer recurrences. Mean age was 54 +/- 13 years (69% males). Cumulative ulcer recurrence rate for 12 months, respectively for patients with eradication success and failure, was 2.3% (95% CI, 0-12%) and 70% (34-93%) (chi 2: 23.9; p < 0.0001). Comparison between Kaplan-Meier curves for ulcer recurrence depending on H. pylori eradication showed significant differences (log-rank test; chi 2: 33.8; p < 0.0001). A patient successfully treated underwent ulcer recurrence while receiving treatment with acetylsalicylic acid, without recurrence of the infection. H. pylori eradication is associated with a dramatic reduction on the recurrence of gastric ulcer, with a cumulative recurrence rate during 12 months of only 2.3%, which suggests that definitive cure of gastric ulcer disease is possible by means of microorganism eradication.
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