The optimal drainage duration of double J stent after holmium laser lithotripsy under flexible ureteroscopy: A randomized controlled single center study
Zhang Yi1, Yang Sixing1, Song Chao1, Liao Wenbiao1, Liu Lingqi1
1.Department of Urology, Renmin Hospital of Wuhan University, Wuhan 430060, China
Abstract：Objective: To explore the optimal indwelling time of double-J stent after flexible ureteroscopy. Methods: Using randomized controlled methods, 248 patients with kidney stones were selected with the diameter of (12.0±2.15) mm. All patients were preseted double J tube to expand the ureter passively for two weeks. Then the renal stones were treated with flexible ureteroscopy and the F7 double J stent was placed in the ureter postoperatively. In which, 121 patients whose double J stent were removed at 2nd week postoperatively were assigned to experimental group, and 127 patients whose double J stent were removed at 4th week postoperatively were assigned to control group. Computed tomography was done at 2nd week after the double-J stent being removed cystoscopically to assess stone-free rate (SFR). Postoperative complications were recorded. Results: The SFR in the experimental group and control group was 89.26% (108 /121) and 88.19% (112/127) respectively (P>0.05). Gross hematuria, abdomen pain, waist pain, urinary tract infection, irritation sign of bladder were recorded in two groups. There was no significant difference in gross hematuria, abdomen pain as well as waist pain between two groups (P>0.05). The incidence of postoperative complications as urinary tract infection and irritation sign of bladder was statistically higher in the control groups than that in the experimental group (P<0.05). Conclusions: The 4-week indwelling of double J stent may increase the incidence of urinary tract infection and irritation sign of bladder as compared with the 2-week indwelling although the SFR showed no statisticall significant difference.
张义，杨嗣星，宋超，廖文彪，刘凌琪. 软性输尿管镜钬激光碎石术后双J管放置时间的单中心随机对照研究[J]. 微创泌尿外科杂志, 2016, 5(4): 199-202.
Zhang Yi, Yang Sixing, Song Chao, Liao Wenbiao, Liu Lingqi. The optimal drainage duration of double J stent after holmium laser lithotripsy under flexible ureteroscopy: A randomized controlled single center study. JOURNAL OF MINIMALLY INVASIVE UROLOGY, 2016, 5(4): 199-202.
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