Extracorporeal Shock Wave Lithotripsy with Northgate SD-3 in 202 Patients with 259 Urinary Calculi

Shim, Bong Suck; Park, Young Yo; Kwon, Sung Won

Abstract

During the last 16 months period between October 1988 and December 1989, 202 patients, 259 urinary calculi, have been treated with Northgate SD-3 lithotripter. The calculi were localized with ultrasound, and only sedation with diazepam and meperidine was used intravenously in all patients. The following results were obtained ; 1. 315 sessions had been in 202 patients, average timement was treatment was 67 minutes, and mean number of impulse was 2,251. 2. The location of stone was 42.2% caliceal, 13.1 % pelvic, 37.5 % ureteral and 6.9% branched renal calculi, measuring 5mm to 38mm. 3. The preoperative concomitant procedures were push-back of ureteral stone in 7 cases, ureteral catheter bypass in 5 cases, double-pigtail stent indwelling in 30 cases and percutaneous nephrolithotripsy in 4 cases. 4. The overall success rate (X-ray negative or fragments less than 3mm) at postoperative 2 months, was 82.6 %. 5. Complication occurred in 9.8% of all treatments. Therefore Northgate SD-3 lithotripter is safe and efficient for the treatment of the urinary calculi.