"Clinical research on flexible ureteroscope ""one step"" treat impacted upper ureteric calculi"
10.3760/cma.j.issn.1000-6702.2017.05.013
- VernacularTitle:“一步法”输尿管软镜治疗嵌顿性输尿管上段结石的临床分析
- Author:
Yuan LYU
;
Changbao XU
;
Jing MA
;
Xinghua ZHAO
;
Xiaofu WANG
;
Wuxue LI
- Keywords:
Flexible ureteroscope;
Impacted upper ureteric calculi;
Lithotripsy,laser
- From:
Chinese Journal of Urology
2017;38(5):371-374
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the effect of one step flexible ureteroscopic lithotripsy for incarcerated upper ureteral calculi.Methods The clinical data of 80 cases of incarcerated upper ureteral calculi were retrospectively analyzed between August 2015 and September 2016.Theone step flexible ureteroscopic lithotripsy was used in 40 cases (one step group),including 22 male cases and 18 female cases.The average age was (40.0 ± 9.5) years.The maximal stone diameter was (i.8 ± 0.5) cm.The widest width of the ureter above the stone was (2.5 ± 1.1) cm.The CT value of stone was (1 089.0 ± 111.3) HU.Two step method was used in 40 cases (two step group),including 21 male cases and 19 female cases.The average age was (41.0 ± 10.7).The maximal stone diameter was (1.7 ± 0.6)cm.The widest width of the ureter above the stone was (2.3 ± 0.9) cm.The CT value of stone was (1 002.0 ± 97.2) HU.During the one step flexible ureteroscopic lithotripsy,only flexible ureteroscope was used to crush the stone,no matter whether the stone located in the ureter or return to the renal pelvis.During two stepmethod,the rigid ureteroscopy was firstly used for crushing the stone in the ureter.When the stone return to the renal pelvis,the rigid ureteroscopy was change into flexible ureteroscope for continuous crushing the stone.Compared two groups' operating time,2 weeks stone clearance rate and the cases of fever after operation.Results The mean operative time in the one step group was (37.45 ± 11.34) min.The mean operative time in the two step group was (55.07 ± 13.57) min.The difference was statistically significant (P ＜ 0.05).The number of infection 2 cases in one step group and 9 cases in two step group.The difference was statistically significant (P ＜ 0.05).2 weeks stone clearance rate was 87.5％ (35/40) in one step group and 82.5％ (33/40)in two step group.There was no significant difference between two groups.Conclusions Flexible ureteroscope one step method is a safe and effective alternation for incarcerated upper ureteral calculi.
