title: Ureteropelvic junction obstruction: treatment with percutaneous endopyelotomy.
abstract: The authors review their experience with percutaneous endopyelotomy in the treatment of ureteropelvic junction obstruction. Twenty-four patients with symptoms of ureteropelvic junction obstruction underwent excretory urography, which revealed nonspecific narrowing in several cases. Angiography was performed in 14 patients suspected of having a vessel crossing at the junction, but such a vessel was found in only four, who subsequently underwent dismembered pyeloplasty. One patient was treated with decompression, but later required endopyelotomy. Nineteen patients underwent percutaneous endopyelotomy; in 11 of them, dilation with a balloon catheter was required to ensure complete disruption of the stenosis. After 6-36 months follow-up, 17 of the 19 patients were asymptomatic with no obstruction and two were asymptomatic with mild obstruction.
authors.affiliation: Section of Diagnostic Radiology, Virginia Mason Clinic and Medical Center, Seattle, WA 98111.
authors.forename: W H
authors.initials: WH
authors.lastname: Bush
authors.forename: G E
authors.initials: GE
authors.lastname: Brannen
authors.forename: G P
authors.initials: GP
authors.lastname: Lewis
mesh_terms: D000328:Adult; D000368:Aged; D002404:Catheterization; D005260:Female; D006801:Humans; D007440:Intubation; D008297:Male; D008875:Middle Aged; D009403:Nephrostomy, Percutaneous; D014517:Ureteral Obstruction / Q000000981:diagnostic imaging / Q000628:therapy*; D014546:Urinary Catheterization; D014567:Urography