[Use of stent-nephrostomy in the treatment of renal transplant urologic complications by percutaneous surgical techniques].

Ureteral complications including stricture of the ureter and necrosis of the ureter with urinoma are the most frequent urological complications after renal transplantation. About 1-12% of recipients suffer from these complications. Percutaneous techniques allow correction of ureteral complications by less traumatic than open surgical operations and sufficiently effective method. Ureteral complications were registered in 20 cases (3.6%) out of 561 renal transplantations carried out in our institute from 1990 to 1995. Only in 5 cases open surgical correction was necessary, 15 patients after percutaneous nephrostomy underwent bougienage and/or balloon dilatation of ureter with further antegrade stenting. In all percutaneous operations special stent-nephrostoma developed in our department was used. Use of the stent-nephrostoma with its further transformation into the ureteral stent has some substantial advantages versus routine stent procedure.