Endopyelotomy for horseshoe and ectopic kidneys.
OBJECTIVE
We report our experience with endopyelotomy for horseshoe and ectopic kidneys in the largest series to date to our knowledge, and discuss the technical modifications adopted to perform successfully percutaneous antegrade endopyelotomy.


METHODS
From September 1987 to April 1996, 4 patients with horseshoe and 5 with ectopic kidney underwent percutaneous antegrade endopyelotomy for symptomatic ureteropelvic junction obstruction. The percutaneous puncture was made more posteromedial and the ureteropelvic junction was incised lateral. A retrograde percutaneous access tract was created under laparoscopic guidance in pelvic kidneys.


RESULTS
The operative procedure was performed uneventfully in all patients with no major bleeding, pleural effusion or visceral perforation. The stents were removed at 6 weeks, and an excretory urogram was performed at 2 weeks, 6 months and yearly thereafter. In 2 patients (22%) with severe hydronephrosis, poor renal function and a long ureteral stricture surgical treatment failed immediately. The remaining 7 patients (78%) had long lasting clinical and radiographic success with a mean followup of 62 months.


CONCLUSIONS
Percutaneous antegrade endopyelotomy, with a few technical modifications, is a safe and effective treatment for ureteropelvic junction obstruction associated with horseshoe and ectopic kidneys.
Jabbour
M E
ME
Department of Urology, Long Island Jewish Medical Center, Albert Einstein College of Medicine, New Hyde Park, New York, USA.
Goldfischer
E R
ER
Stravodimos
K G
KG
Klima
W J
WJ
Smith
A D
AD
D000328:Adult; D000368:Aged; D004724:Endoscopy / Q000379:methods; D005260:Female; D006801:Humans; D007668:Kidney / Q000002:abnormalities* / Q000601:surgery*; D007682:Kidney Pelvis / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D014517:Ureteral Obstruction / Q000601:surgery*; D018666:Ureteroscopy