In a two year period from March 1983, 157 patients with upper urinary tract stones were managed primarily by endoscopy. Of 90 patients with renal stones, extraction was achieved in 91% of patients with complete extraction in 76%. Of the remaining patients with ureteric stones, successful extraction was achieved in 75%. Ten patients required open surgery which was for failed extraction in 9. Morbidity is low with a mean hospital stay of 4.7 days for patients with kidney stones, and of 3.7 days for patients undergoing extraction of ureteric stones
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