Elective Treatment of Ureteral Stones with Extracorporeal Shock Wave Lithotripsy

Abstract

Extracorporeal shock wave lithotripsy was used as an elective treatment in 128 ureteral stones. Of the 108 with adequate follow-up, 88% were successfully disintegrated. Ureteral catheters proved to be particularly useful for more precise stone localization and as a mechanical means to push the calculi inside the renal cavities or to create a fluid interface around them, in order to increase the efficiency of the shock waves. When ureteral catheters were used a success rate of 95.5% was observed, as opposed to 82.8% when stents were not used (p < 0.05).