Clinical Analysis of Ureteroscopic Holmium:YAG Laser Lithotripsy for Ureteral Calculi(350 Cases Report)

Objective To discuss the clinical effects of ureteroscopic holmium: YAG laser lithotripsy for ureteral stones.Method From May 2009 to June 2011,there were 350 patients with ureteral calculi underwent ureteroscopic holmium: YAG laser lithotripsy.Results There were 321 cases(91.7%) got one stage clearance.The mean operation time was 48.6(20~115) min;and the postoperative hospital stay was 5.2(4~7) days.The ureteral stones shifted to the pelvis in 18 cases,which were treated by ESWL 1 to 4 weeks later following DJ tubes insertion in 16 cases,and by soft ureteroscopic holmium: YAG laser lithotripsy in the other 2 cases.Another 11 cases conversed to open surgery because of the ureteral tortuosity or stenosis.There were 6 cases of ureteral mucosa damage and 4 cases of ureteral perforation.During the 3 months follow-up,339 cases were found all got stone clearance.So the stone clearance rate of this group was 96.9%.Conclusion It is an ideal treatment for ureteral calculi of ureteroscopic holmium: YAG laser lithotripsy with advantages of safety,high efficacy,minimal invasion,less complications and quick rehabilitation.