A Meta-Analysis of the Success Rate ofHelicobacter pyloriTherapy in Canada
BACKGROUND AND AIM:Helicobacter pyloritreatment success rates have varied. A systematic review of the success rate of anti-H pyloritherapy in Canada was performed.METHODS: All clinical trials containing Canadian data on the success rate ofH pyloritreatment were identified using MEDLINE searches, through review of references of retrieved studies and by contacting key investigators. Both randomized and open-label trials were included. Treatment effect size was calculated using a variation of Cochran’s Q method.RESULTS: Seventeen papers met the inclusion criteria. Both triple therapies consisting of a proton pump inhibitor (PPI), clarithromycin and either amoxicillin or metronidazole performed well, achieving a success rate of 84% and 82%, respectively. The cure rate of PPI-amoxicillin + metronidazole was 76%. Quadruple therapy consisting of a PPI, bismuth, metronidazole and tetracycline, given for seven to 10 days, achieved a success rate of 87%.CONCLUSION: Both PPI-based triple therapy and quadruple therapy perform well in Canada for the treatment ofH pyloriinfection.