[The effect of extracorporeal shock-wave lithotripsy on renal function]

Using the method of phase scintigraphy, the authors examined 48 patients who were treated by means of extracorporeal shock-wave lithotripsy. The authors proved at the 5% of significance that the development or deterioration of renal functions does not depend on the localization of the concrement and the number of shock-waves needed for disintegration. The authors confirmed the significant effect of the size of concrement on the lesion of renal function--all stones larger than 30 mm lead in 100% to a varying deviation, as compared with the examination made before extracorporeal shock-wave lithotripsy. Obesity has also a significant effect on the development or deterioration of lesions of renal function. From the total number of patients where after lithotripsy a lesion of renal function developed or deteriorated 70.6% were obese! After 24 months in two patients deterioration of the condition, as compared with the initial state, was proved.