title: [Association of Helicobacter pylori and chronic idiopathic urticaria].
abstract: OBJECTIVE
  To analise the etiological association of Hp and Idiopathic Chronic Urticaria (UCI).
  
  
  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.
  
  
  CONCLUSIONS
  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.
authors.affiliation: Serviço de Dermatologia do Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre.
authors.forename: R R
authors.initials: RR
authors.lastname: Bonamigo
authors.forename: C S
authors.initials: CS
authors.lastname: Leite
authors.forename: L
authors.initials: L
authors.lastname: Bakos
mesh_terms: D000328:Adult; D000900:Anti-Bacterial Agents / Q000627:therapeutic use; D000897:Anti-Ulcer Agents / Q000627:therapeutic use; D016022:Case-Control Studies; D002908:Chronic Disease; D005260:Female; D016481:Helicobacter Infections / Q000188:drug therapy; D016480:Helicobacter pylori / Q000302:isolation & purification*; D006801:Humans; D008297:Male; D008795:Metronidazole / Q000627:therapeutic use; D008875:Middle Aged; D009853:Omeprazole / Q000627:therapeutic use; D014581:Urticaria / Q000382:microbiology*
chemical_list: D000900:Anti-Bacterial Agents; D000897:Anti-Ulcer Agents; D008795:Metronidazole; D009853:Omeprazole
vernacular_title: Estudo sobre a associação entre Helicobacter pylori e urticária crônica idiopática.