腎切石術の予後について

Abstract

During the last ten years, 193 renal parenchymal operations were performed for renal calculi at Osaka and Ehime University Hospitals. To evaluate the short-term postoperative course, 57 cases were reviewed for operative procedure, renal function, urinary tract infection and residual stones. To evaluate the long-term prognosis of nephrolithotomy, 108 patients for whom over five years had elapsed postoperatively, were entered in this study. The follow-up rate of these patients remained 53. 1%. Renal calculi were detected on the operated side including possible residual stones in 44.3%; 13.5% of the stones were larger than 5 mm and accompanied by urinary tract infection. Twenty-two cases were treated by partial nephrectomy. At the follow-up examination of 9 patients done more than five years postoperatively, 6 patients were found to have stones in the operated kidney, 3 of whom had stones larger than 5 mm in diameter.