Use of prophylactic antibiotics in urethral instrumentation.

A prospective study of 210 patients undergoing urethral instrumentation is presented. The patients were divided into 2 groups, receiving either amoxicillin or cephalexin. The postoperative incidence of infection and complications was compared to a control group of 110 patients receiving no antibacterial agent. Routine prophylactic antibiotics are recommended for patients undergoing urethral instrumentation. If the urine is infected at the time of instrumentation antibiotic therapy should be used according to the sensitivity studies.