Extracorporeal Shock Wave Lithotripsy Experience with Domestic SDS-5000 in 173 Patients with 195 Urinary Calculi

Kim, Won Ho; Jeun, Byung Kyu; Oh, Kyung Jun

Abstract

PURPOSE: This study was performed to evaluate the success rate, failure causes, complications, safety and effectiveness of extracorporeal shock wave lithotripsy(SWL) with domestic SDS-5000 lithotriptor for the treatment of urinary calculi.
MATERIALS AND METHODS
SWL monotherapy using the Domestic SDS-5000 lithotripter was performed in 195 urinary stones from 173 patients between 9 years and 74 years old from March 1998 to February 1999. Distribution of stones, location and size of stones, session, success rate, causes of failure and complications of SWL were reviewed.
RESULTS
Of 195 cases, 88(45.1%) had renal, and 107(54.9%) ureteral stones. Of these cases 44.6% had stones smaller than 0.9cm, 33.3% from 1 to 1.9cm, 15.9% from 2 to 2.9cm, and 4% larger than 3cm. The overall success rate of complete SWL was 91.3% with 90.1% in 5-9mm, 96.9% in 10-19mm, 90.3% in 20-29mm and 62.5% over 30mm stone size. There were no significant complications. The cases of transient gross hematuria were developed in 11.3%, renal colic in 8.7%, steinstrasse in 2.0% and fever in 1.0%. These complications were controlled with conservative treatment or repeated session of shock wave lithotripsy, Double - J stent insertion.
CONCLUSIONS
SWL with Domestic SDS-5000 lithotriptor is considered to be a safe and efficient outpatient procedure for the initial treatment of urinary stone.