Initial Clinical Trials of Urinary Stones with Dornier Lithotriptor MPL 9000

Ahn, Tei Young; Kim, Choung Soo; Ahn, Han Jong

Abstract

Extracorporeal shock wave lithotripsy was performed in 231 patients for 13 months with Dornier MPL 9000 lithotriptor. The 231 patients had renal ( 48.9%) or ureteral (51.1%) stones varying from 0.6 to 4.4cm (mean 1.2cm) in size. Among 231 patients, 184 patients (79.7%) completed the treatment with 1 session and the number of treatment sessions increased in larger stones and in situ impacted ureteral stones, with an average of 1.3 sessions. The success rate (rate free of calculi plus that of clinically insignificant residual fragments) was 98.3 %. No general or regional anesthesia was required but parental analgesics were required in 22.9% of the treatment sessions. There were no significant complications in any patient. Therefore, extracorporeal shock wave lithotripsy with Dornier MPL 9000 lithotriptor is considered to be a safe and efficient procedure for initial treatment of urinary stones.