Vesical Calculi

Abstract

Experience of electrohydraulic lithotripsy (URAT I) for bladder stone is presented. The male preponderance among the patients was 91%. The success rate with URAT I was 95%. One patient (1%) died after perforation of the bladder. Stones with diameter 1–3 cm were quickly crushed and evacuated. The operating time was longer for stones smaller than 1 cm. A punch lithotriptor may be preferable for such small concrements. In contrast to some earlier reports, we found that stones larger than 5 cm could be relatively difficult to fragment and evacuate. Cystoscopy one or two months after lithotripsy is advisable in order to evacuate any residual fragments of stone. Such fragments may attach to the mucosa at the operation and consequently be retained at evacuation.