title: Percutaneous pyelolysis.
abstract: Pelvi-ureteric junction obstruction has been treated in 3 patients using a percutaneous modification of the Davis intubated ureterostomy technique. A 10-French tube is introduced into the obstructed upper ureter through a percutaneous nephrostomy puncture. Full thickness incision of the upper ureter and pelvi-ureteric junction is then carried out using a standard endoscopic urethrotome. The splint tube and diverting proximal nephrostomy remain in situ for 1 month. Good drainage was established in 2 cases following de-tubing. Further cases are under study.
mesh_terms: D000328:Adult; D004322:Drainage; D004724:Endoscopy / Q000379:methods*; D005260:Female; D006801:Humans; D006869:Hydronephrosis / Q000601:surgery*; D007682:Kidney Pelvis / Q000000981:diagnostic imaging / Q000601:surgery*; D008875:Middle Aged; D011859:Radiography; D014513:Ureter / Q000601:surgery*; D014517:Ureteral Obstruction / Q000601:surgery*; D014546:Urinary Catheterization