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"A group of the 59 patients (64 kidneys) of renal calculi, operated at our hospital in the past a half and four years from 1976 Jun. to 1980 May, was investigated statistically. 1. In the 64 operations there were 2 nephrectomies (3.1per cent), 12 pyelolithotomies (18.8 percent), 4 nephrolithotomies (6.3 per cent), 16 extended pyelolithotomies (25.0 per cent), 19 extended pyelolithotomies combined with local nephrolithotomies (29.7 per cent), 5 partial nephrectomies (7.8 per cent), and 6 lower pole pyelocalycotomies (9.4 per cent). From our experience the choice of surgery staghorn or multiple stone was indicated lower surgery is the treatment of choice most of the patients and nephrectomy was performed only in a small group. 2. In 62 conservative operations for renal calculi, residual calculi were observed in 6 kidneys (9.7 per cent). 3. In postoperative course, hematuria was discontinued within 3 days. Urine leakage also disappeared within 3 days in pyelolithotomy with closure of renal pelvis, but within 5 days in extended pyelolithotomy without closure of renal pelvis. In some cases, postoperative urinary tract infection was perpetuated by residual stone and preoperative infection."
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