[Percutaneous nephrostomy in children].

In the authors department in the course of six years 38 percutaneous nephrostomis were performed. The most frequent indication was renal failure and infection of the urinary pathways in obstruction of the ureter. Puncture of the hollow renal system was performed in the majority of patients under ultrasonographic control from a posterolateral approach and dilatation of the nephrostomic canal under intermittent X-ray control. After dilatation into the renal pelvis a nephrostomic catheter was inserted. The success rate of the procedure was 95%. In two patients percutaneous nephrostomy failed and was repeated after a certain time interval.