Clinical Experience of Extracorporeal Shock Wave Lithotripsy (ESWL) Using Dornier MPL 9200X Lithotriptor

Kim, Hong Seok; Kim, Young Gon

Abstract

PURPOSE: We analysed the therapeutic results of 2,585 cases (2,456 patients) of urinary calculi, treated by extracorporeal shock wave lithotripsy (ESWL), using a Dornier MPL 9200X lithotriptor.
MATERIALS AND METHODS
The records of all the patients, in whom urinary calculi were treated by ESWL, between October, 1997 and October, 2002, were retrospectively reviewed. The patients were defined as successful if there was no concrement on the X-ray (plain film) or residual fragments RESULTS
The average number of treatments per session and mean number of shocks per treatment were 1.3 and 1477.9, respectively. As auxiliary procedures, a nephrostomy was performed in 87 cases (3.4%) and a double J stent in 42 (1.6%). The overall success rate 4 weeks after the last session was 97.7%. The success rates according to the stone location were 94.2% in the kidney and 99.0% in the ureter. The success rates according to stone size were 99.3, 99.3, 90.8, 86.1 and 72.2%, for below 10, 10-19, 20-29, 30-39 and over 40mm, respectively. The complications were gross hematuria, renal colic, steinstrasse and fever in 2,158 (83.4%), in 771 (29.8), in 53 (2.1%) and fever in 16 cases (0.6%), respectively, which were successfully controlled by conservative treatment.
CONCLUSIONS
We considered ESWL has become a highly effective and minimally invasive treatment modality as the 1st therapeutic option for urinary stones.