title: [Comparison of 2 treatment schemes to eradicate Helicobacter pylori].
abstract: BACKGROUND
  Anti secretory drugs, antimicrobials and bismuth salts are used with variable success to eradicate Helicobacter pylori.
  
  
  OBJECTIVE
  To assess the effectiveness and rates of reinfection of two therapeutic modalities H pylori infection in adult patients with duodenal ulcer or non ulcer dyspepsia.
  
  
  METHODS
  During upper gastrointestinal endoscopy, 5 antral and 2 fundic biopsies were obtained and sent for microbiological and anatomopathological study. Patients infected with Helicobacter pylori were randomly assigned to receive during two weeks omeprazole 20 mg od plus amoxicillin 500 mg tid (group A) or bismuth subsalicylate 260 mg bid, metronidazole 250 mg tid and amoxicillin 500 mg tid (group B). A new endoscopy with antral and fundic biopsies was performed to all patients four weeks after discontinuing treatment and six months later to those in whom H pylori was eradicated.
  
  
  RESULTS
  Eighty patients (40 in each treatment group) completed the treatment and follow up. H pylori was eradicated in 22 patients of group A (55%) and 28 of group B (70%). Minor adverse effects were reported by 5 patients in group A (12%) and 11 in group B (27.5%). Six months later, reinfection was documented in 12 patients of group A and 8 of group B (54% and 30% of those with successful treatment respectively). Ten of twenty five patients with duodenal ulcer had reinfections, but there was only one ulcer relapse.
  
  
  CONCLUSIONS
  These two treatment modalities have similar results.
authors.affiliation: Departamento de Gastroenterología, Anatomía Patológica y Microbiología, Facultad de Medicina, Universidad de Chile, Hospital San Juan de Dios, Santiago de Chile.
authors.forename: P
authors.initials: P
authors.lastname: Hoffenberg
authors.forename: V
authors.initials: V
authors.lastname: Reyes
authors.forename: L
authors.initials: L
authors.lastname: Contreras
authors.forename: M
authors.initials: M
authors.lastname: Giglio
authors.forename: P
authors.initials: P
authors.lastname: Ossa
authors.forename: J C
authors.initials: JC
authors.lastname: Weitz
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000658:Amoxicillin / Q000627:therapeutic use*; D000897:Anti-Ulcer Agents / Q000627:therapeutic use*; D001729:Bismuth / Q000627:therapeutic use*; D004381:Duodenal Ulcer / Q000188:drug therapy* / Q000473:pathology; D004415:Dyspepsia / Q000188:drug therapy* / Q000473:pathology; D016099:Endoscopy, Gastrointestinal; D005260:Female; D005500:Follow-Up Studies; D016481:Helicobacter Infections / Q000188:drug therapy*; D016480:Helicobacter pylori; D006801:Humans; D008297:Male; D008795:Metronidazole / Q000627:therapeutic use*; D008875:Middle Aged; D009853:Omeprazole / Q000627:therapeutic use*; D010406:Penicillins / Q000627:therapeutic use*; D012008:Recurrence
chemical_list: D000897:Anti-Ulcer Agents; D010406:Penicillins; D008795:Metronidazole; D000658:Amoxicillin; D009853:Omeprazole; D001729:Bismuth
vernacular_title: Comparación de dos esquemas de tratamiento para erradicar Helicobacter pylori.