Korean J Urol.
1989 Jun;30(3):372-377.
Pulsed Dye Laser Fragmentation of Ureteral Calculi under Ureteroscopy
- Affiliations
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- 1Hallym University, Seoul, Korea.
Abstract
- From April to October, 1988, 34 patients with ureteral calculi more than O.5 cm or smaller but impacted ureteral stone underwent pulsed dye laser lithotripsy under ureteroscopy. The results were as follows : 1. The locations of stone were upper ureter in 9(26.5%), mid ureter in 8(23.5%), lower ureter in 11(32.4%), and UVJ in 6(17.6%). 2. The success rates according to location were 66.7% in upper ureter, 87.5% in mid ureter, 91% in lower ureter, and 100% in UVJ and the average success rate was 85.3%. 3. The success rates according to stone size were 83% in 0.3-0.5 cm, 90% in 0.5-1.0 cm, and 75% in 1.0-2.3 cm. 4. The average procedure time was about 85 minutes, with a range of 30 to 120 minutes and the average hospitalization after laser therapy was about 3 days, with a range of 1 to 6 days. 5. There were 5 cases (14.8%) of failure due to upward migration of stone in 3 cases, ureteral injury in 1 case and ureteral stricture in 1 case. 6. Complications occurred in 10 patients (29.5 %), almost by ureteroscopy but laser induced complication was not found. Therefore, we confirm that laser lithotripsy is a safe and effective method for treatment of ureteral stone.
