For Single Dosing, Levofloxacin Is Superior to Ciprofloxacin When Combined With an Aminoglycoside in Preventing Severe Infections After Prostate Biopsy
Abstract
OBJECTIVE: To investigate whether there is benefit with a longer acting oral fluoroquinolone, we compared the rate of infection after transrectal ultrasound-guided prostate biopsy between 2 prophylactic antibiotic regimens: ciprofloxacin vs levofloxacin, each combined with an aminoglycoside (AG).
METHODS: A retrospective review was performed of all transrectal ultrasound-guided prostate biopsies from September 2011 to January 2013. Initially our regimen entailed 1 dose of 500-mg ciprofloxacin and an AG. In June 2012, we switched to 1 dose of 750-mg levofloxacin and an AG. Infections were categorized as severe if requiring hospital admission, overnight observation, or emergency room treatment for fever or chills. Those treated as an outpatient were defined as mild.
RESULTS: Of 1189 total biopsies, the total infection rate was 3.18% (17 of 535) in the ciprofloxacin group and 2.14% (14 of 654) in the levofloxacin group (P = .26). The rate of mild infection was 0.75% (4 of 535) in the ciprofloxacin group and 1.22% (8 of 654) in the levofloxacin group (P = .56). The rate of severe infection was significantly higher in the ciprofloxacin group at 2.43% (13 of 535) compared with that of 0.92% (6 of 654) in the levofloxacin group (P = .04). On multivariate analysis, use of ciprofloxacin rather than levofloxacin was associated with an increased risk of severe infection (odds ratio, 4.59; P = .04).
CONCLUSION: Empiric prophylaxis for prostate biopsies with a single-dose fluoroquinolone…
How strong is the evidence?
Evidence Hub reads this as a cohort study, done in people. Its evidence level is 3 of 5 (Moderate · trial / cohort / secondary analysis). Trials without a large randomized design, cohorts and secondary analyses give moderate evidence.
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