Studies on the function of the renal pelvis and ureter. X. A comparative study of cutaneous ureterostomy and nephrostomy

Abstract

Postoperative alteration of renal and ureteral functions and incidence of postoperative pyelonephritis were examined both on 57 cases in which cutaneous ureterostomy was performed and on 57 cases in which nephrostomy was performed.The results obtained are as follows:1) Postoperative alteration of renal functionIn 50 cases with cutaneous ureterostomy performed, postoperative aggravation of renal function was noted in 14 of 24 cases which showed normal renal function preoperatively, while in the group which showed impaired renal function its improvement was seen in 7 cases and aggravation in 6 cases.In 16 cases with nephrostomy performed, renal function was impaired postoperatively in 1 of 3 cases which showed normal renal function preoperatively. In the cases in which renal function had already impaired, its postoperative improvement was seen in 6 cases and aggravation in 2 cases.2) Incidence of postoperative pyelonephritisIn cutaneous ureterostomy acute pyelonephritis occurred in 48% of the cases, while in nephrostomy it occurred in 37%.3) Ureteral function in cutaneous ureterostomyThe function of the ureter, which was performed cutaneous ureterostomy, was examined with electroureterography and urometry.Ureteral peristalsis was preserved only in one case of the 10 cases examined, and irregular infrequent peristalsis was seen in 4 cases. In 5 cases, no peristalsis was observed in the postoperative period.