Endoscopic antegrade laser incision in the treatment of urethral stricture.

Objectives: To examine the possibility of antegrade incisions at varying stricture lengths. We have developed a new method of using a ureteroscope and holmium:yttrium-aluminum-garnet (YAG) laser to make an antegrade incision without using a guidewire. Endoscopic internal urethrotomy involves the use of a guidewire or ureteral catheter that is passed through the stricture as an indicator for retrograde incision.