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Παρασκευή 11 Ιανουαρίου 2019

Favorable outcomes of culture‐based Helicobacter pylori eradication therapy in a region with high antimicrobial resistance

Abstract

Background

The eradication rate of Helicobacter pylori has declined, mainly due to antimicrobial resistance. To overcome resistance‐associated treatment failure, the efficacy of culture‐based, susceptibility‐guided therapy was demonstrated as the first‐line eradication therapy for H pylori infection.

Aims

To evaluate the efficacy of culture‐based therapy as the first‐line eradication therapy in regions with high levels of antimicrobial resistance.

Methods

Helicobacter pylori‐positive patients without previous eradication treatment history were recommended to undergo culture to determine the minimal inhibitory concentration (MIC). If they consented, 7‐day clarithromycin‐containing PPI triple; 7‐day esomeprazole, moxifloxacin, and amoxicillin (MEA) therapy; or 7‐ or 14‐day esomeprazole, bismuth, metronidazole, and tetracycline (quadruple) therapy were administered based on the agar dilution‐determined MIC. Eradication, treatment compliance, and adverse events were examined.

Results

In total, 74 patients were enrolled, and 69 patients completed the protocols. The overall resistance rates to amoxicillin, clarithromycin, metronidazole, and moxifloxacin were 6.7%, 31.0%, 41.8%, and 39.2%, respectively. The patients were allocated to the PPI triple (n = 50), MEA (n = 8) or quadruple (n = 16) therapy. The eradication rate in the intention‐to‐treat analysis was 93.1% (69 of 74 patients). The eradication rates in the per‐protocol analysis were 100.0% (69 of 69 patients). Epigastric pain, nausea, and vomiting were less common than those of other empirical therapies.

Conclusions

Culture‐based, susceptibility‐guided therapy is effective first‐line eradication therapy, especially in regions with high levels of antimicrobial resistance.



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