Abstract

GOMEZ RODRIGUEZ, B. J. et al. Incidence and factors influencing on Helicobacter pylori infection recurrence. Rev. esp. enferm. dig. [online]. 2004, vol.96, n.9, pp.620-627. ISSN 1130-0108.

Objectives: a) to determine the rate of H. pylori reinfection after successful eradication in a 4-year follow-up study; and b) to evaluate the contribution of different factors in the infection relapse. Patients and methods: a total of 208 patients (age range 18-81 years; average 50 years; 87 women) who had been successfully treated for H. pylori infection were included. Annually, urea breath test was assessed to determine H. pylori status after eradication. Age, sex, rural/urban environment, smoking habit, treatment regimens against H. pylori and urea breath test values were evaluated. Results: reinfection occurred in 9,6% of patients observed, 6,7% (14/208) in the first year, 1,9% (4/208) in the second year, 1% (2/208) in the third and 0% in the forth. Risk factors for infection recurrence were younger age and higher values of urea breath test in the multivariante analysis. Conclusions: annual reinfection rate was 2,4 pacients-year. Younger patients and higher values of urea breath test were factors associated with a higher rate of reinfection relapse. Annually, urea breath test should be performed to detect reinfection in order to avoid ulcer complications.

Keywords : Reinfection; Recrudescence; Recurrence; Eradication; Helicobacter pylori; Urea breath test.

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