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  • Title: Meta-analysis of Early Versus Late Ureteric Stent Removal After Kidney Transplantation.
    Author: Cai JF, Wang W, Hao W, Sun ZJ, Su LL, Li X, Zheng X, Zhang XD.
    Journal: Transplant Proc; 2018 Dec; 50(10):3411-3415. PubMed ID: 30577214.
    Abstract:
    BACKGROUND: Ureteral stents have been widely used in kidney transplantation to prevent postoperative ureter-related complications such as ureteral stricture, ureteral obstruction, and ureteral leakage; however, a longer indwelling ureteral stent time corresponds to a greater risk of complications such as urinary tract infections. Currently, transplantation centers have not yet reached an agreement on the time to remove ureteral stents. Several randomized controlled trials (RCTs) have evaluated the optimal removal time for ureteral stents. OBJECTIVE: This meta-analysis was designed to evaluate and discuss the optimal removal time for ureteral stents after kidney transplantation. METHOD: We used key words to search PubMed, Embase, and Cochrane Library and retrieve published articles. A total of 568 kidney transplantation patients from 5 RCTs were included in this meta-analysis. We collected information regarding postoperative complications related to indwelling stents, such as ureteral stricture, ureteral obstruction, ureteral leakage, and urinary tract infection, and evaluated whether early removal of ureteral stents (≤7 days) was superior to late removal (≥14 days). RESULTS: A significant difference was observed in the incidence of urinary tract infection between the early removal group and the late removal group (risk ratio [RR] = 0.43, 95% confidence interval [CI] [0.32, 0.59], P < .01). No significant between-group difference was observed in the incidence of major urological complications (MUCs) (RR = 1.87, 95% CI [0.45, 7.70], P > .05). CONCLUSION: Early removal of ureteral stents of transplanted kidneys after kidney transplantation (≤7 days) did not significantly increase the incidence of postoperative MUCs (ureteral stricture, ureteral obstruction, and ureteral leakage) relative to late removal (≥14 days). Early removal may significantly reduce the incidence of postoperative urinary tract infection relative to late removal.
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