Preliminary experience in managing renal calyceal calculi with actively deflectable,flexible ureteroscopy
- VernacularTitle:末端可弯型输尿管镜治疗肾盏结石的初步体会
- Author:
Yinghao SUN
;
Linhui WANG
;
Chuanliang XU
;
Xu GAO
;
Xiaofeng GAO
- Publication Type:Journal Article
- Keywords:
Ureteroscopes;
Kidney calculi;
Therapy
- From:
Chinese Journal of Urology
2001;0(11):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the effectiveness of a newly designed flexible,deflectable tip ureteroscope for the management of renal calyceal calculi. Methods We designed an actively deflectable tip, flexible ureteroscope for the treatment of renal calyceal calculi.From 2003 to 2004,25 patients with renal calyces calculi underwent deflectable,flexible ureteroscopic lithotripsy with holmium laser.Of them, 7 had concomitantly upper ureteral calculi.The mean diameter of the renal caliceal calculi was 1.3 cm (range,0.8-2.4 cm);and the mean diameter of the upper ureteral calculi was 0.6 cm (range,0.4-0.9 cm).The disease course ranged from 1 to 38 months with a mean of 17 months.Thirty days after the procedure, KUS showed no remnant fragmented calculi≥0.1 cm,suggesting clearance of the calculi.The completion rate of the procedure, lithotripsy rate and operative complications were analyzed. Results The procedure was successful in all the 25 patients with mean operative time of 28 min (range,19-45 min).The mean lithotripsy time was 11 min (range,5-22 min).No severe complication such as perforation of the ureter occurred during operation.The mean hospital stay was 3 d.The overall stone-free rate at 1 month after treatment was 92%(23/25). Conclusions The flexible,deflectable tip ureteroscope has the advantages of both rigid and flexible ureteroscopes,thus it is safe and effective in lithotripsy, especially for renal calyceal calculi of relatively small size.
