Eradication Rates of Bismuth-based Quadruple Therapy as a Second-line Treatment for Helicobacter pylori Infection / 대한소화기내시경학회지

BACKGROUND/AIMS: There has been a substantial decline in Helicobacter pylori (H. pylori) cure rates with standard triple therapy in recent years. Therefore, great emphasis has been placed on second line treatment for its successful eradication. The aim of this study was to evaluate the efficacy of bismuth based quadruple therapy as a second line treatment for H. pylori infection. METHODS: From January 2001 to December 2007, the hospital records of 215 patients who failed to the standard triple therapy were reviewed retrospectively. The patients were treated with bismuth based quadruple therapy (PPI, bismuth 120 mg qid, metronidazole 500 mg tid, and tetracycline 500 mg qid). The successful eradication of H. pylori was defined as negative result from histology, CLO test or (13)C-urea breath test. RESULTS: Eradication rates by intention-to-treat (ITT) and per-protocol (PP) analyses with quadruple therapy were 64% (137/215) and, 91% (137/151) respectively. The eradication rates were not significantly different according to diseases, duration of treatment, area and proton pump inhibitors. The PP eradication rates for the years from 2001 to 2007 were not significantly different. CONCLUSIONS: The bismuth based quadruple therapy is still effective as the second line treatment for the eradication of H. pylori.

Current effectiveness of Helicobacter pylori eradication treatment in primary care setting in Korea / 대한내과학회지

BACKGROUND: Since the international guideline of Helicobacter pylori eradication therapy was introduced into Korea, many reports about eradication outcomes have been documented. These data were published mostly from referred university hospital. However, in Korea, majority of patients has been treated with H.pylori eradication regimen in primary care setting. This study was performed to investigate the eradication rate of H. pylori in primary care office of Seoul, Korea. METHODS: Total 173 patients with H.pylori-positive gastroscopy results received eradication regimen-mainly one week PPI based triple therapy-from January 1998 to March 2003. Four weeks after completion of medication, urea breath test, biopsy and CLO test were performed to detect H.pylori. RESULTS: Total eradication rate was 87.9%. The eradication rate of male and female were 90.3% and 84.3%, respectively (p>0.05). The eradication rate of patients older than younger than 60 was 81.5% vs 89.0%, respectively (p>0.05). There was no statistical significance in annual eradication rate. In eradication rate, there was no significant difference among PPI regimen (omeprazole, rabeprazole, pantoprazole). Whether endoscopic diagnosis is gastric ulcer or duodenal ulcer, there was no statistical difference in eradication rate between them. In the same way, there was also no statistical difference between peptic ulcer and H.pylori associated gastritis. CONCLUSION: The current eradication rate of H. pylori in primary care setting of Korea was 87.9%. H.pylori eradication rate in primary care setting was not much different from that in referred hospital in Korea, but it was lower than that reported by controlled trials of 1995 (initial times of introduction of international guide line into Korea). So far, the results have been acceptable, but there still remains to be investigated in PPI-based triple therapy as H.pylori eradication in primary care setting in the future of Korea.