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Comparison of the efficacy of triple versus quadruple therapy on the eradication of Helicobacter pylori and antibiotic resistance



Comparison of the efficacy of triple versus quadruple therapy on the eradication of Helicobacter pylori and antibiotic resistance



Journal of Digestive Diseases 11(5): 313-318



Our aim was to compare the efficacy and safety of Helicobacter pylori (H. pylori) eradication with pantoprazole-based 7-day standard triple therapy (PAC) and 10-day quadruple therapy (PBMT), and to study the primary resistance of H. pylori to amoxicillin, clarithromycin, metronidazole and tetracycline. A total of 170 patients with non-ulcer dyspepsia (NUD) and H. pylori infection were allocated to two study groups. The PAC group received pantoprazole 40 mg b.i.d., amoxicillin 1.0 g b.i.d. and clarithromycin 500 mg b.i.d. for 7 days; the PBMT group received pantoprazole 40 mg b.i.d., colloidal bismuth subcitrate 220 mg b.i.d, metronidazole 400 mg t.i.d. and tetracycline 750 mg b.i.d. for 10 days. A total of 80 H. pylori strains were isolated and antibiotic resistance was measured by the agar dilution method. A total of 166 patients completed the therapy. The intention-to-treat eradication rates in the PAC and PBMT groups were 63.5% and 89.4%, respectively (P < 0.05). By per protocol analysis, the eradication rates of the two groups were 65.1% and 91.6%, respectively (P < 0.05). Overall 77 clinical isolated H. pylori strains were cultured successfully. The H. pylori primary resistance rates to metronidazole and clarithromycin were 41.6% and 20.8%, respectively, whereas all the H. pylori isolates were sensitive to amoxicillin and tetracycline. The efficacy of PAC declines in many regions in China because of high antibiotic resistance rates. The PBMT regimen achieved a high eradication rate of H. pylori and might be used as a first-line therapy.

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Accession: 052246478

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PMID: 20883428

DOI: 10.1111/j.1751-2980.2010.00457.x


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