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Helicobacter pylori eradication in clinical practice: one-week low-dose triple therapy is preferable to classical
1Division of Gastroenterology, University Hospital, Nottingham, UK.
Background:
Both classical 2-week bismuth based triple therapy and the newer 1-week low-dose omeprazole based triple therapies achieve high Helicobacter pylori eradication rates in controlled clinical trials and are in widespread use in routine clinical practice. However, their efficacy and acceptability in this setting is unproved.
Methods:
Over a 1-year period, the notes for patients attending a dedicated H. pylori treatment clinic were audited. Assessments were made of patient demographics, diagnosis, smoking habits, use of H2-antagonists, regimen used, efficacy of treatment, compliance and side-effects experienced.
Results:
223 sets of notes were audited. 89 patients received bismuth, tetracycline and metronidazole for two weeks and 111 patients received omeprazole, clarithromycin and either metronidazole (63 patients) or tinidazole (48 patients) for 1 week. Successful eradication was achieved in 75/89 (84.3%), 56/63 (89%) and 42/48 (88%), respectively, (P = N.S.). Severe side-effects occurred in 11 (12%) of patients receiving bismuth based treatment compared to 1 (0.9%) patient receiving omeprazole based regimens (P < 0.02). Treatment failure in patients receiving omeprazole based treatment was associated with smoking (P < 0.05).
Conclusions:
Outside the context of clinical trials, both regimens achieved acceptable eradication rates. However, 1-week low-dose therapy is preferable due to the lower incidence of severe side-effects.