Surgical indication of dilatations in the renal cavity system

The authors report on the results of examining 20 patients with dilatation of the pelvic cavity associated with developmental anomalies of the kidney. The results are evaluated from the point of view of the indication and the selected type of the operation. The importance of diuretic urography and renography is pointed out in demonstrating the obstruction. Beside isotope gamma camera examinations, the renal function was assessed through determination of the acidifying and concentrating ability of the kidney. The intraoperative pressure measurement in the pelvic cavity is a valuable aid in selecting the adequate type of operation. Finally, the indications of reconstructive operations were outlined.