[Local chemolysis of occluding uric acid calculi].

Between 1984 and 1986 nineteen patients (20 renal units) were admitted with obstructing uric acid calculi. Seventy-eight percent of all patients with urolithiasis were treated endourologically: 8 kidneys were infected, 8 kidneys were non-functioning and 3 kidneys caused a status colicus. Sodium bicarbonate was used for percutaneous irrigation and all 20 kidneys were cleared within 4 to 18 days. The technique is a valuable adjunct to the ESWL.