4.5 Article

The effectiveness of rotating versus single course antibiotics for small intestinal bacterial overgrowth

期刊

UNITED EUROPEAN GASTROENTEROLOGY JOURNAL
卷 9, 期 6, 页码 645-654

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SAGE PUBLICATIONS INC
DOI: 10.1002/ueg2.12116

关键词

antibiotics; bacterial overgrowth; breath tests; ciprofloxacin; metronidazole; norfloxacin; quality of life; remission; rotating antibiotics; SIBO; single course; small intestinal bacterial overgrowth

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The study investigated the efficacy of different antibiotics in treating small intestinal bacterial overgrowth. Remission was observed in over half of the patients after one course of antibiotics, with rotating antibiotics showing more effectiveness than a single antibiotic. Remission was associated with significant improvements in quality of life and bloating.
Background Small intestinal bacterial overgrowth treatment is usually based on antibiotics with no guidelines available. Objective This study aimed to investigate the efficacy of different antibiotics to treat small intestinal bacterial overgrowth. Methods Consecutive patients referred to our tertiary center and diagnosed with intestinal bacterial overgrowth were retrospectively included. Patients were diagnosed using a 75 g glucose breath test. Patients were treated either with a single antibiotic (quinolone or azole) or rotating antibiotics (quinolone and azole, one after the other) for 10 consecutive days per month for 3 months. A negative glucose breath test after antibiotic treatment was considered as remission. Quality of life (GIQLI) and gastrointestinal severity (IBS-SSS) were assessed before and after antibiotic treatment. Symptomatic evaluation was realized in simple blind of glucose breath test result: patients were unaware of their results. Results Between August 2005 and February 2020, 223 patients were included in the analysis (female 79.8%, mean age 50.2 +/- 15.7 years). Remission was observed in 119 patients (53.4%) after one course of antibiotics and was more frequent in patients receiving rotating antibiotics than in patients receiving a single antibiotic (70.0% vs. 50.8%, p = 0.050). Remission was associated with a significant improvement in quality of life (p = 0.035) and in bloating (p = 0.004). Conclusion In this study, the treatment of small intestinal bacterial overgrowth using rotating antibiotics was more effective than treatment using a single course of antibiotic. Remission was associated with improvement in both quality of life and bloating.

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