Kidney function based on dynamic nephroscintigraphic data in the late period after extracorporeal lithotripsy]

Dynamic nephroscintigraphy (DSG) was performed in 112 patients aged 14 to 76 years who had undergone 1 to 6 sessions of EL for unilateral or bilateral nephrolithiasis. A total of 254 EL sessions on 119 kidneys were performed. DSG was conducted before EL and at least 12 months after elimination of the stone fragments. The improvement of secretory renal function occurred in 68(57%) patients, aggravation was registered in 17(14.3%), unchanged renal function was in 34(28.6%) patients. Out of 17 cases of aggravation EL was responsible for only 3 of them. The others were due to other factors (progressive chronic pyelonephritis, acute pyelonephritis, hematoma, etc.). The conclusion is made that EL is a low-traumatic treatment of urolithiasis which is a method of choice in making decision on therapeutic policy in urolithiasis.