Clinical applications of domestic modular flexible ureteroscope(Shao Gang ureteroscope) for the treatment of kidney stones
Yu Xiao
Yang Huan
Cui Lei
Li Cong
Peng Ejun
Wu Bolin
Guo Xiaolin
Chen Zhiqiang
Liu Jihong
Ye Zhangqun
Wang Shaogang
Abstract：Objective:Objective:To evaluate the clinical efficacy and advantages of domestic assembled flexible ureteroscope (Shao Gang ureteroscope,Youcare Tech.) for management of renal stones.Methods:From March 2013 to October 2016 in our department,664 patients with renal stones were divided in two groups randomly and treated with imported integrated flexible ureteroscope (IIFU) or domestic assembled flexible ureteroscope (Shao Gang ureteroscope) (DAFU) respectively.IIFU group had 136 cases including 101 males and 35 females,aged 19-68 years (mean 42.3).Calculi were in the upper renal calyx in 15 cases,middle renal calyx in 29 cases,lower renal calyx in 40 cases,and renal pelvis in 52 cases.The diameter of kidney stones was 2.3±0.5 cm.DAFU group had 528 cases including 377 males and 151 females,aged 26-72 years old (mean 36.6 years).Calculi were in the upper renal calyx in 72 cases,middle renal calyx in 63 cases,lower renal calyx in 162 cases,and renal pelvis in 231 cases.The diameter of kidney stones was 2.4±0.5 cm.The general information of two groups had no statistically significant difference.Results:In IIFU group,the operation time was 31-82 min (average 51.7 min).The calculi in 134 cases were found during operation and stone-find rate was 98.5% (134/136).124 cases obtained stone-free status with one session,and 5 cases obtained stone-free status after two sessions.Single session stone-free rate (SFR) was 92.6% (124/134),and overall stone-free rate was 96.3% (129/134).The residual fragments (diameter less than 4 mm) were observed in 5 cases,which were all located in lower calyxes and did not need for further treatment.Six cases had postoperative fever.No severe perioperative complications such as blood transfusion,septic shock,ureteral perforation or avulsion occurred.The patients were discharged from hospital in 2-3 days (average 2.1 days) postoperatively.In DAFU group,the operation time was 27-75 min (average 47.5 min).The calculi in 513 cases were found during operation and stone-find rate was 97.2% (513/528).477 cases obtained stone-free status with one session,and 20 case obtained stone-free status after two sessions.SFR was 93.0% (477/513),and overall stone-free rate was 96.9% (497/513).The residual fragments (diameter less than 4 mm) were observed in 16 cases,which were all located in lower calyxes and did not need for further treatment.There was no statistically signifcant difference between two groups in operation time,stone-find rate,SFR,complications and postoperative hospital stay.However,the cost of purchase and maintenance of domestic assembled flexible ureteroscope was cheaper than imported integrated flexible ureteroscope.Conclusions:Domestic assembled flexible ureteroscope (ShaoGang ureteroscope) in renal stone treatment had a definite effect.Not only the cost of the materials was low,but also the operation had advantages in more convenient,safe and comfortable for doctors.
Keywords：renal stoneassembled flexible ureteroscopeholmium laser lithotripsy
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 89-92 )