title: Four-day quadruple therapy as a routine treatment for Helicobacter pylori infection.
abstract: BACKGROUND
  H. pylori eradication usually involves treatment with three or four drugs for at least 7 days. Possible advantages of short treatment regimens are better patient compliance and tolerability. and less adverse effects. Recently two reports have shown a cure rate of > 90% using a 4-day quadruple therapy.
  
  
  OBJECTIVE
  To confirm these data and to evaluate the efficacy and tolerability of 4-day quadruple therapy in a single centre.
  
  
  METHODS
  Thirty-eight consecutive patients with non-ulcer dyspepsia or peptic ulcer disease, and proven H. pylori infection, received 4 days of quadruple therapy (bismuth, tetracycline, metronidazole, lansoprazole). At least 6 weeks after treatment, endoscopy was repeated with six biopsies of antrum and corpus for histology and culture.
  
  
  RESULTS
  The intention-to-treat cure rate was 34/38 (89.5%, 95% CI: 79.7-99.2%). In the per protocol analysis the cure rate was 34/37 (91.9%, 95% CI: 83.1-100%). Primary metronidazole resistance was observed in two patients; both were cured. Metronidazole resistance induction was observed in one patient in whom therapy failed. The treatment was generally well tolerated.
  
  
  CONCLUSIONS
  Routine use of 4-day quadruple anti-H. pylori treatment is effective and well tolerated.
authors.affiliation: Department of Internal Medicine, Slingeland Ziekenhuis, Doetinchem, The Netherlands.
authors.forename: S Y
authors.initials: SY
authors.lastname: de Boer
authors.forename: T H
authors.initials: TH
authors.lastname: Siem
mesh_terms: D053799:2-Pyridinylmethylsulfinylbenzimidazoles; D000293:Adolescent; D000328:Adult; D000368:Aged; D000900:Anti-Bacterial Agents / Q000009:adverse effects / Q000627:therapeutic use*; D000897:Anti-Ulcer Agents / Q000009:adverse effects / Q000627:therapeutic use*; D004334:Drug Administration Schedule; D004359:Drug Therapy, Combination; D004415:Dyspepsia / Q000188:drug therapy* / Q000382:microbiology; D005260:Female; D016481:Helicobacter Infections / Q000188:drug therapy*; D016480:Helicobacter pylori / Q000302:isolation & purification*; D006801:Humans; D064747:Lansoprazole; D008297:Male; D008795:Metronidazole / Q000009:adverse effects / Q000627:therapeutic use; D008875:Middle Aged; D009853:Omeprazole / Q000009:adverse effects / Q000031:analogs & derivatives / Q000627:therapeutic use; D009942:Organometallic Compounds / Q000009:adverse effects / Q000627:therapeutic use; D010437:Peptic Ulcer / Q000188:drug therapy* / Q000382:microbiology; D011446:Prospective Studies; D013752:Tetracycline / Q000009:adverse effects / Q000627:therapeutic use
chemical_list: D053799:2-Pyridinylmethylsulfinylbenzimidazoles; D000900:Anti-Bacterial Agents; D000897:Anti-Ulcer Agents; D009942:Organometallic Compounds; D064747:Lansoprazole; D008795:Metronidazole; D013752:Tetracycline; C002791:bismuth tripotassium dicitrate; D009853:Omeprazole