title: Recurrence of duodenal ulcers during five years of follow-up after cure of Helicobacter pylori infection.
abstract: BACKGROUND
  Chronic Helicobacter pylori-associated gastritis is now widely accepted as one of the most important pathogenic factors in duodenal ulcer disease. However, little is known about for how long patients remain free of duodenal ulcer relapses after H. pylori infection has been cured. In the present study, we investigated remission time during a 5-year follow-up period after anti-H. pylori treatment.
  
  
  METHODS
  The patients were randomly allocated to treatment with either a combination of 3 x 600 mg bismuth subsalicylate and 2 x 1000 mg amoxycillin or 3 x 600 mg bismuth subsalicylate monotherapy. Endoscopy, including histological and microbiological examination of biopsies, was performed 4 weeks after termination of treatment and after 1 and 2 years. During the third, fourth and fifth years of the follow-up period, patients were monitored twice a year for symptoms compatible with ulcer relapse and for their use of anti-ulcer medication. Endoscopic and histological examinations were carried out whenever symptoms occurred.
  
  
  RESULTS
  Of 56 evaluated patients, 47 showed healing of ulcers after bismuth subsalicylate plus amoxycillin compared with 44 of 57 after bismuth subsalicylate monotherapy. H. pylori infection was cured in 52% (29 of 56) of the patients after combined therapy and in 4% (2 of 57) after the monotherapy. The cumulative duodenal ulcer relapse rates after 5 years were 38% (18 of 47) after the combined therapy and 75% (33 of 44) after the monotherapy. In patients who were cured of H. pylori infection, the cumulative duodenal ulcer relapse rate after 5 years was 9.7% (3 of 31), compared with 81.7% (49 of 60) in those patients who remained H. pylori-positive after treatment (P < 0.001). In two of the three patients who suffered duodenal ulcer relapse after being cured of H. pylori infection, H. pylori was present again at the time of relapse.
  
  
  CONCLUSIONS
  The data suggest that curing H. pylori infection results in long-term cure of duodenal ulcer disease and that duodenal ulcer relapses in successfully treated patients are most often associated with H. pylori reinfection.
authors.affiliation: Department of Internal Medicine II, Klinikum Grosshadern, University of Munich, Germany.
authors.forename: S
authors.initials: S
authors.lastname: Miehlke
authors.forename: E
authors.initials: E
authors.lastname: Bayerdörffer
authors.forename: N
authors.initials: N
authors.lastname: Lehn
authors.forename: G A
authors.initials: GA
authors.lastname: Mannes
authors.forename: W
authors.initials: W
authors.lastname: Höchter
authors.forename: J
authors.initials: J
authors.lastname: Weingart
authors.forename: A
authors.initials: A
authors.lastname: Sommer
authors.forename: W
authors.initials: W
authors.lastname: Heldwein
authors.forename: S
authors.initials: S
authors.lastname: Müller-Lissner
authors.forename: E
authors.initials: E
authors.lastname: Bästlein
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000658:Amoxicillin / Q000008:administration & dosage*; D001729:Bismuth / Q000008:administration & dosage*; D004305:Dose-Response Relationship, Drug; D004334:Drug Administration Schedule; D004359:Drug Therapy, Combination; D004381:Duodenal Ulcer / Q000188:drug therapy* / Q000382:microbiology; D005260:Female; D005500:Follow-Up Studies; D005756:Gastritis / Q000188:drug therapy* / Q000382:microbiology; D016481:Helicobacter Infections / Q000188:drug therapy* / Q000382:microbiology; D016480:Helicobacter pylori / Q000187:drug effects / Q000302:isolation & purification; D006801:Humans; D008297:Male; D008875:Middle Aged; D009942:Organometallic Compounds / Q000008:administration & dosage*; D010406:Penicillins / Q000008:administration & dosage*; D012008:Recurrence; D012459:Salicylates / Q000008:administration & dosage*
chemical_list: D009942:Organometallic Compounds; D010406:Penicillins; D012459:Salicylates; C015715:bismuth subsalicylate; D000658:Amoxicillin; D001729:Bismuth