1.Department of Urology, the Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China; 2.Department of Urology, The Qingyuan People's Hospital
Abstract：To evaluate the clinical effect and security of ureteral occlusion apparatus applied in the treatment of upper ureteral calculus. Methods: The clinical data of patients with upper ureteral calculus using ureteral occlusion apparatus were retrospectively analyzed. There were 34 males and 16 females with upper ureteral calculi above the 4th lumbar vertebrae. The long diameter of calculus was from 0.7 to 2.8 cm (average 1.4 cm), and the length of calculi and hydronephrosis history was from 3 weeks to 28 months. All patients received Holmium laser lithotripsy with ureteral occlusion apparatus made in China. Briefly, ureteral occlusion apparatus was put through one work channel (Storz or Olympus F9.8 ureteroscope) to block the ureter above the stone, and the laser fiber passed through another one to perform lithotripsy. Results: Laser lithotripsy was performed on all calculi successfully and completely, except one stone (0.7 cm) slipped back to renal pelvis, which returned and was given lithotripsy in the end by changing the body position in operation. The ureteral occlusion apparatus was placed successfully in all cases, without ureteral perforation or severe injury. No fever or hypotension occurred. The calculi were cleared, which was proved by postoperative KUB, during the follow-up period of 2-3 months. The hydronephrosis was vanished or palliatedextinctively. Conclusions: Application of ureteral occlusion apparatus can improve the stone clearance obviously in upper ureteral calculus lithotripsy, decrease the severe complications, and prevent post-operative adverse reactions, which is worthy of popularizing greatly.
