EXTRACORPOREAL SHOCK WAVE LITHOTRIPSY AS MONOTHERAPY FOR STONES IN SOLITARY KIDNEY

Abstract

Objective To evaluate extracorporeal shock wave lithotripsy (ESWL) as a monotherapy for urolithiasis in patients with solitary kidney and to determine the factors that may affect its results. Patients and Methods Using the Dornier MFL 5000 lithotriptor, 106 patients with solitary kidney (80 men and 26 women) were treated for stone disease. The mean age ( SD) was 44.5 11.1 years (ranging from 18 to 70 years). The causes of monorenia were nephrectomy, the presence of a contralateral non-functioning kidney or a congenital solitary kidney (56.6%, 39.6% and 3.8%, respectively). The mean stone length was 13 5 mm and the mean width was 10 3 mm. Pre-treatment stenting was done in 14 patients to relieve anuria before ESWL. The follow-up data were recorded at 3 months. The statistical analysis was performed using chi-square test to detect the different factors that may affect the stone-free rate. Results The overall stone-free rate was 84.9%. Sixteen patients (15.1%) were not cleared of stones, including 12 (11.3%) with insignificant gravel o