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  • Title: Ciprofloxacin prophylaxis in kidney transplant recipients reduces BK virus infection at 3 months but not at 1 year.
    Author: Wojciechowski D, Chanda R, Chandran S, Lee B, Webber A, Macaraig M, Tomlanovich S, Vincenti F.
    Journal: Transplantation; 2012 Dec 15; 94(11):1117-23. PubMed ID: 23060281.
    Abstract:
    BACKGROUND: BK polyomavirus (BKV) infection remains a significant cause of nephropathy and graft loss. Fluoroquinolones inhibit BKV replication in vitro, and small studies suggest in vivo benefit. A strategy of fluoroquinolone prophylaxis directed specifically against BKV has not been formally tested against a control group in kidney transplant recipients. METHODS: We retrospectively compared the impact of a change in antibiotic prophylaxis practice from no BKV prophylaxis (Group 1, n=106, July-December 2009) to BKV prophylaxis with ciprofloxacin 250 mg twice daily for 30 days (Group 2, n=130, January-June 2010) on the rate of BKV infection during the first 12 months after kidney transplantation. RESULTS: Baseline demographics, transplant characteristics, induction immunosuppression, and 1-year incidence of acute rejection were similar between groups. Group 1 had fewer patients on maintenance corticosteroids (65.1% vs. 83.2%, P=0.002). At 3 months, Group 1 had a significantly higher risk of developing BK viremia (0.161 vs. 0.065, P=0.0378) and viruria (0.303 vs. 0.146, P=0.0067) compared with Group 2, but this difference disappeared at 12 months for both viremia (0.297 vs. 0.261, P=0.6061) and viruria (0.437 vs. 0.389, P=0.5363). Adjusting for the difference in steroid use did not change the results. There was a trend toward higher incidence of biopsy-proven BKV nephropathy in Group 1 (4.7% vs. 0.8%, P=0.057). CONCLUSION: Thirty-day ciprofloxacin prophylaxis in kidney transplant recipients is associated with a lower rate of BKV infection at 3 months but not at 12 months. The long-term effectiveness and optimal duration of fluoroquinolone prophylaxis against BKV infection remain unknown.
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