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  • Title: Routine use of indwelling ureteral stents in renal transplantation.
    Author: Nicol DL, P'Ng K, Hardie DR, Wall DR, Hardie IR.
    Journal: J Urol; 1993 Nov; 150(5 Pt 1):1375-9. PubMed ID: 8411403.
    Abstract:
    An extravesical ureteral implantation with the routine use of an internal stent was performed in 358 transplants (351 cadaveric and 7 living related). The 1-year patient and graft survival was 93% and 87%, respectively, with a minimum followup of 2 years. Ureteral complications developed in 9 patients (2.6%), with 3 fistulas, 2 of which resolved spontaneously, and 6 stenoses following stent removal. Nephrostomy drainage and antegrade stenting were initially attempted in all cases of stenosis, and were successful in 4. Revision of the ureteral anastomosis was required in 1 case of fistula and 2 cases of stenosis (0.9%). Extrinsic compression resulted in ureteral obstruction in 3 cases (2 lymphoceles and 1 hematoma), which resolved following drainage. Stent related complications occurred in 8 patients (2.2%), including obstruction due to the stent in 2 cases, breakage during removal in 3 leaving fragments in the upper urinary tract, proximal migration of 2 stents that were retrieved via percutaneous nephrostomy and calculus formation on 1 stent in a patient with hyperparathyroidism, necessitating extracorporeal shock wave lithotripsy for stent removal. In the cases with ureteral or stent related complications 1-year patient and graft survival was 100%. These results suggest that ureteral stents used routinely in renal transplantation are associated with a low incidence of urinary leaks, early postoperative obstruction and subsequent surgery for urological complications. However, a small number of unique problems related to stent use or malfunction may occur. Minimally invasive strategies using percutaneous nephrostomy and antegrade stenting are effective in managing the majority of complications that occur following ureteral stenting in renal transplant recipients.
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