[Internal urethrotomy in the treatment of urethral stenosis. Experience at the "Marqués de Valdecilla" University Hospital].

The results of treatment of urethral strictures using the Sachse urethrotome in 31 patients are presented. These patients had consulted between 1985 and 1990 and were followed for a minimum of 6 months. The most common etiology in our series was iatrogenic (57.57%), particularly incorrect catheter placement. Single (66.66%) and short (72.72%) strictures were more common than the multiple (15.15%) and long (15.15%). The strictures were more frequently localized to the bulbous urethra (42.42%). Spinal and general anesthesia were utilized. The catheters were made of silastic material with calibers ranging from 16-22 FR and patients remained in the hospital from 4-30 days. Good results were achieved in 51.61%, fair in 22.58% and poor in 25.80%. The literature on endoscopic management of urethral stricture is briefly reviewed.