[Association of Helicobacter pylori and chronic idiopathic urticaria]. / Estudo sobre a associação entre Helicobacter pylori e urticária crônica idiopática.

ABSTRACT

OBJECTIVES: To analise the etiological association of Hp and Idiopathic Chronic Urticaria (UCI). MATERIAL AND METHODS: Case control study. Eighteen patients over 18 years with clinical and laboratory evidences of ICU have been studied. Previous exposure to Hp was evaluated by serum IgG for Hp. The control group, with 18 patients were paired to age, sex, race and social economic conditions. In the patients positive to Hp oral doses of amoxacilin, metronidazole and omeoprazole were given in order to eradicate the agent. RESULTS: Twelve patients with UCI were positive to Hp (66.7%) and 6 were positive in the control group (33.3%). In the cases treated to eradicate Hp 6 had complete remission, 4 parcial remission and 2 had no improve. CONCLUSION: There are strong evidences that Hp is an etiological factor of Urticaria. In our study the difference of 33.4% in the previous exposure to Hp between cases and controls and the positive results with the therapeutics confirm the existence of this etiological association.