BACKGROUND: There are only a few studies on Helicobacter pylori (H. pylori) for its eradication rates of lansoprazole-based triple therapy in Korea, and the results are controversial. Therefore, we undertook to investigate the eradication rate of lansoprazole-based triple therapy, and compare the concordance rate of urea breath test (UBT) and rapid urease test (RUT) in evaluating H. pylori eradication. METHODS: Patients with acute peptic ulcer who were H. pylori-positive were recruited by prospective, consecutive manner. They received lansoprazole 30 mg b.d., amoxicillin 1 g b.d. and clarithromycin 500 mg b.d. for 1 week. Upper endoscopy was performed after 4 weeks to check for ulcer healing, and UBT and RUT were performed to evaluate H. pylori eradication status. RESULTS: A total of 46 patients were recruited, and they were all compliant. H. pylori eradication rate was 87.0% (40/46) and ulcer healing rate was 91.3% (42/46). Forty one patients showed negative in both UBT and RUT, and 4 patients revealed positive in both tests, therefore, the concordance rate of UBT and RUT was 97.8% (45/46). CONCLUSION: Our study showed that 1-week lansoprazole-based triple therapy was effective in H. pylori eradication and ulcer healing. UBT can be an effective, noninvasive method for evaluating H. pylori status after H. pylori eradication.
Amoxicillin ; Breath Tests* ; Clarithromycin ; Endoscopy ; Helicobacter pylori* ; Helicobacter* ; Humans ; Korea ; Lansoprazole ; Peptic Ulcer* ; Prospective Studies ; Ulcer ; Urea* ; Urease

BACKGROUND: There are only a few studies on Helicobacter pylori (H. pylori) for its eradication rates of lansoprazole-based triple therapy in Korea, and the results are controversial. Therefore, we undertook to investigate the eradication rate of lansoprazole-based triple therapy, and compare the concordance rate of urea breath test (UBT) and rapid urease test (RUT) in evaluating H. pylori eradication. METHODS: Patients with acute peptic ulcer who were H. pylori-positive were recruited by prospective, consecutive manner. They received lansoprazole 30 mg b.d., amoxicillin 1 g b.d. and clarithromycin 500 mg b.d. for 1 week. Upper endoscopy was performed after 4 weeks to check for ulcer healing, and UBT and RUT were performed to evaluate H. pylori eradication status. RESULTS: A total of 46 patients were recruited, and they were all compliant. H. pylori eradication rate was 87.0% (40/46) and ulcer healing rate was 91.3% (42/46). Forty one patients showed negative in both UBT and RUT, and 4 patients revealed positive in both tests, therefore, the concordance rate of UBT and RUT was 97.8% (45/46). CONCLUSION: Our study showed that 1-week lansoprazole-based triple therapy was effective in H. pylori eradication and ulcer healing. UBT can be an effective, noninvasive method for evaluating H. pylori status after H. pylori eradication.
Amoxicillin ; Breath Tests* ; Clarithromycin ; Endoscopy ; Helicobacter pylori* ; Helicobacter* ; Humans ; Korea ; Lansoprazole ; Peptic Ulcer* ; Prospective Studies ; Ulcer ; Urea* ; Urease