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There have been controversial reports of an elevated prevalence rate of Helicobacter pylori infection in chronic urticaria patients. Furthermore, in some studies remission of chronic urticaria has been reported after eradication of H. pylori. The aim of this investigation was to evaluate the prevalence of H. pylori infection among chronic urticaria patients and to study the effect of eradication therapy on urticaria symptoms. Chronic urticaria patients (n=235) were enrolled and H. pylori status was determined serologically. Thirty-five patients received antimicrobial triple therapy. 25% of the patients were positive for H. pylori. The prevalence of H. pylori infection was not significantly higher among urticaria patients compared with the normal Finnish population in any of the age groups studied. Of the successfully treated patients, 27% showed remission of urticaria. Our data suggest that the prevalence of H. pylori infection is not elevated among chronic urticaria patients and that H. pylori eradication does not appear to influence the course of chronic urticaria.

Is Helicobacter pylori Infection Associated with Chronic Urticaria?