title: [Association between chronic urticaria and Helicobacter pylori].
abstract: BACKGROUND
  Chronic urticaria is a multifactorial disease classified in three main groups: mechanical, autoimmune and idiopathic. So far we don't know the mechanisms that produces it, there are different theories and one of them is the presence of Helicobacter pylori.
  
  
  OBJECTIVE
  To establish the relation between chronic urticaria and Helicobacter pylori trough endoscopic and histopatological studies.
  
  
  METHODS
  Seventy-two patients older than 18 years old, 36 with chronic urticaria and 36 controls with the same sex and age. Complete clinical history, hematical biometry, cutaneous determination of IgE and tests was made to each one. High panendoscopy with gastric biopsy was asked to practice Warthin Starry method and determine Helicobacter pylori existence. The statistical analysis was made with SPSS program, version 11, to establish the bivariated correlation in search of variables dependency.
  
  
  RESULTS
  In the group with chronic urticaria, there were 19 (52.8%) patients infected with Helicobacter pylori, and in the control group only 4 (11.1%). We found a chi2 with a value of 12.52 (p < 0.002).
  
  
  CONCLUSIONS
  Association between chronic urticaria and Helicobacter Pylori is evident, so we propose a routinely scan for this microorganism in patients with the disease.
authors.affiliation: Hospital Regional Lic. Adolfo López Mateos del ISSSTE. dr_pliego_reyes@yahoo.com.mx
authors.forename: Carlos L
authors.initials: CL
authors.lastname: Pliego Reyes
authors.forename: Nayeli
authors.initials: N
authors.lastname: Jiménez Saab
authors.forename: Javier
authors.initials: J
authors.lastname: Gómez Vera
authors.forename: José J
authors.initials: JJ
authors.lastname: López Tiro
authors.forename: María
authors.initials: M
authors.lastname: Cruz Parada
authors.forename: Juan
authors.initials: J
authors.lastname: Ahumada Trujillo
authors.forename: Luis
authors.initials: L
authors.lastname: Cisneros Sotelo
authors.forename: Enrique
authors.initials: E
authors.lastname: Sampedro Carrillo
authors.forename: P
authors.initials: P
authors.lastname: Morales Villarruel
authors.forename: A
authors.initials: A
authors.lastname: Reyes Salinas
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002908:Chronic Disease; D003430:Cross-Sectional Studies; D005260:Female; D016480:Helicobacter pylori / Q000302:isolation & purification*; D006801:Humans; D008297:Male; D008875:Middle Aged; D014581:Urticaria / Q000382:microbiology*