Single dose antibiotic prophylaxis in high risk patients undergoing transurethral prostatectomy

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Abstract
In a randomized controlled clinical trial single dose antibiotic prophylaxis (gentamicin 80 mg IV) was evaluated in 36 patients with indwelling urethral catheters undergoing transurethral prostatic resection. Prophylaxis resulted in a significant reduction in postoperative bacteriuria (P <0·01), pyrexia (P <0·001), bacteraemia (P <0·01) and septicaemia (P <0·05). During the same period there was one case of postoperative bacteriuria but no systemic infection in 25 consecutive patients undergoing elective prostatectomy with no local risk factors and in the absence of prophylaxis. A policy of selective antibiotic prophylaxis is justified and in high risk patients with in-dwelling catheters single dose prophylaxis is highly effective.