title: Effect of Helicobacter pylori eradication on the ulcer recurrence rate after simple closure of perforated duodenal ulcer: retrospective and prospective randomized controlled studies.
abstract: BACKGROUND
  The possible advantage of eradication of Helicobacter pylori in patients with perforated duodenal ulcer is unknown. This study was planned to assess the prevalence of H. pylori after simple closure of a perforated duodenal ulcer and to study the effect of H. pylori eradication on ulcer persistence and recurrence.
  
  
  METHODS
  Some 202 patients were followed prospectively for 2 years after simple closure of a perforated duodenal ulcer (prospective group). A second group of 60 patients was reviewed 5 years or more after perforation closure (retrospective group). The prevalence of H. pylori in patients with perforated duodenal ulcer was compared with that in controls. Patients in the prospective group were randomized to receive either ranitidine alone or quadruple therapy (ranitidine, colloidal bismuth subcitrate, metronidazole and tetracycline) after operation. The incidence of H. pylori infection after the two treatments and the association with residual or recurrent ulcer were studied. In the retrospective group long-term ulcer recurrence was correlated with H. pylori status.
  
  
  RESULTS
  The prevalence of H. pylori in patients with perforated duodenal ulcer was not significantly different from that in controls. At every interval of follow-up in the prospective group and in the retrospective group the H. pylori infection rate was significantly higher in patients who had recurrent or residual ulcers.
  
  
  CONCLUSIONS
  Eradication of H. pylori after simple closure of a perforated duodenal ulcer should reduce the incidence of residual and recurrent ulcers.
authors.affiliation: Department of Surgery, Jawaharlal Institute of Postgraduate Medical Education and Research, Pondicherry 605006, India.
authors.forename: V
authors.initials: V
authors.lastname: Kate
authors.forename: N
authors.initials: N
authors.lastname: Ananthakrishnan
authors.forename: S
authors.initials: S
authors.lastname: Badrinath
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000863:Antacids / Q000627:therapeutic use; D000900:Anti-Bacterial Agents / Q000627:therapeutic use; D000897:Anti-Ulcer Agents / Q000627:therapeutic use; D001729:Bismuth / Q000627:therapeutic use; D004381:Duodenal Ulcer / Q000382:microbiology*; D005260:Female; D016481:Helicobacter Infections / Q000517:prevention & control*; D016480:Helicobacter pylori; D006801:Humans; D008297:Male; D008795:Metronidazole / Q000627:therapeutic use; D008875:Middle Aged; D010439:Peptic Ulcer Perforation / Q000382:microbiology*; D011446:Prospective Studies; D011899:Ranitidine / Q000627:therapeutic use; D012008:Recurrence; D012189:Retrospective Studies; D013752:Tetracycline / Q000627:therapeutic use
chemical_list: D000863:Antacids; D000900:Anti-Bacterial Agents; D000897:Anti-Ulcer Agents; D008795:Metronidazole; D011899:Ranitidine; D013752:Tetracycline; C010804:bismuth subnitrate; D001729:Bismuth