Antimicrobial prophylaxis in transurethral resection of the prostate. With special reference to preoperatively sterile urine.

The literature on antimicrobial prophylaxis in connection with transurethral resection of the prostate (TURP) is reviewed, and it is concluded that there is no proof of clinically significant beneficial effect of prophylaxis when the urine is sterile preoperatively. Prophylaxis is indicated when bacteriuria or an indwelling urethral catheter is present at the time of operation. Other possible risk factors, such as diabetes mellitus, neurogenic bladder dysfunction, immunosuppression, earlier coronary bypass operation and the presence of prosthetic devices, need further investigation.