Are prophylactic antibiotics necessary in patients with preoperative sterile urine undergoing ureterorenoscopic lithotripsy?
Abstract
OBJECTIVE: To compare the efficacy of prophylactic antibiotics in reducing post-surgical infections in patients undergoing ureterorenoscopic lithotripsy (URSL).
PATIENTS AND METHODS: The study was a double-blind, prospective, randomized controlled trial. Between 2009 and 2012, 212 patients with preoperative sterile urine undergoing URSL were randomly allocated, in a ratio of 1:1:1:1, to receive prophylactic antibiotics with single-dose i.v. cefazolin (1 g), ceftriaxone (1 g) or oral levofloxacin (500 mg), or no treatment (control group), respectively. Urine analysis and urine cultures were obtained between postoperative days 5 and 7. Pyuria was defined as ≥10 white blood cells/high power field. Significant bacteriuria was defined as ≥100,000 colony-forming units uropathogens/mL. Febrile urinary tract infection (fUTI) was defined as a body temperature of 38.5 °C with pyuria or significant bacteriuria ≤7 days after surgery.
RESULTS: In total, 206 patients were eligible for analysis. The rates of postoperative pyuria were significantly lower in patients with prophylaxis than in the control group (48.4 vs 64.7%, P = 0.04). Patients receiving prophylaxis with levofloxacin and ceftriaxone had a significantly lower risk of pyuria compared with the control group (52.0 and 36.5 vs 64.7%, respectively; P < 0.05). The rates of bacteriuria and fUTI tended to be lower in patients with prophylaxis, although the difference was not significant (4.5 vs 11.8%, P = 0.09, 1.3 vs 5.9%, P =…
How strong is the evidence?
Evidence Hub reads this as a randomized trial, done in people. Its evidence level is 2 of 5 (High · randomized trial). Randomized trials of a reasonable size are the strongest single-study design. Reported size: 206 participants or records.
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