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  • Title: Impact of stents on urological complications and health care expenditure in renal transplant recipients: results of a prospective, randomized clinical trial.
    Author: Tavakoli A, Surange RS, Pearson RC, Parrott NR, Augustine T, Riad HN.
    Journal: J Urol; 2007 Jun; 177(6):2260-4; discussion 2264. PubMed ID: 17509336.
    Abstract:
    PURPOSE: We performed a randomized, prospective trial to compare the incidence of early urological complications and health care expenditures in renal transplant recipients with or without ureteral stenting. MATERIALS AND METHODS: Patients receiving a renal transplant at a single center were randomized preoperatively to undergo Double-J stent or no-stent ureterovesical anastomosis from November 1998 to October 2001. Early urological mechanical complications were recorded, including urinary leakage or obstruction, or urinary tract infections within 3 months of transplantation. Direct health care costs associated with stenting, urological complications and urinary tract infection management were also collected. RESULTS: A total of 201 patients were randomized to a stent (112) and a no-stent (89) group. In the no-stent group 11 patients received a stent due to intraoperative findings and were excluded from study. At 3 months there were significantly more cases of urinary leakage (8.9% vs 0.9%, p <0.008) and ureteral obstruction (7.7 % vs 0%, p <0.004) in the no-stent than in the stent group. Mean time of stent removal was 74.3 days. A significant increase in urinary tract infections was observed when stent was left greater than 30 days after transplantation compared to the rate in the no-stent group (p <0.02). An additional cost of 151 UK pounds per patient was incurred in the no-stent group vs the stent group. CONCLUSIONS: Using a ureteral stent at renal transplantation significantly decreases the early urinary complications of urine leakage and obstruction. However, there is a significant increase in urinary tract infections, primarily beyond 30 days after transplantation. Stent removal within 4 weeks of insertion appears advisable.
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