Journal
SYSTEMATIC REVIEWS
Volume 1, Issue -, Pages -Publisher
BMC
DOI: 10.1186/2046-4053-1-39
Keywords
Travelers' diarrhea; Chemoprophylaxis; Systematic review; Meta-analysis; Rifaximin; Fluoroquinolone
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Background: Recent developments related to a safe and effective nonabsorbable antibiotic, rifaximin, and identification of postinfectious irritable bowel syndrome as a frequent sequela call for a need to reconsider the value of primary prevention of traveler's diarrhea (TD) with antibiotics. Methods: Randomized, placebo-controlled, double-blind studies evaluating the effectiveness and safety of rifaximin or a fluoroquinolone chemoprophylaxis against TD were pooled using a random effects model and assessed for heterogeneity. Results: The nine studies (four rifaximin and five fluoroquinolone) included resulted in pooled relative risk estimates of 0.33 (95% CI = 0.24-0.45, I-2 = 3.1%) and 0.12 (95% CI = 0.07-0.20, I-2 = 0.0%), respectively. Similar rates of treatment emergent adverse events were found between antibiotic and placebo groups. Conclusions: This meta-analysis supports the effectiveness of antibiotics in preventing TD. However, further studies that include prevention of secondary chronic health outcomes among travelers to different geographic regions, and a formal risk-benefit analysis for antibiotic chemoprophylaxis, are needed.
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