title: Endourologic procedures for ureteropelvic junction stenosis: techniques and results.
abstract: Twenty-two cases of stenosis of the ureteropelvic junction were treated by endourologic procedures; 13 were associated with renal stones. Three techniques were used, depending on the type and degree of obstruction: (1) anterograde or retrograde dilation with a double-lumen balloon dilator catheter; (2) incision of the stricture with a cold knife after a percutaneous approach to the kidney; and (3) incision of the stenosis with a new flexible knife through a nephrostomy tract. Balloon dilation was always performed after the incision. No immediate complications were observed following the procedure. The average follow-up was eight months. A routine excretory urogram was done three months after treatment. There were four reobstructions, and in 1 patient the ureteropelvic junction could not be identified. Success rate was 77.3 percent.
authors.affiliation: Department of Urology, University of Bologna, Italy.
authors.forename: A
authors.initials: A
authors.lastname: Martelli
authors.forename: P
authors.initials: P
authors.lastname: Buli
authors.forename: S
authors.initials: S
authors.lastname: Spatafora
authors.forename: S
authors.initials: S
authors.lastname: Grossi
mesh_terms: D002404:Catheterization / Q000379:methods; D003251:Constriction, Pathologic / Q000000981:diagnostic imaging / Q000601:surgery; D003558:Cystoscopy; D005500:Follow-Up Studies; D006801:Humans; D007682:Kidney Pelvis / Q000601:surgery; D012008:Recurrence; D014517:Ureteral Obstruction / Q000000981:diagnostic imaging / Q000601:surgery*; D014567:Urography