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    Should Interventional Radiology or Open Surgery Be the First Choice for the Management of Ureteric Stenosis After Transplantation? Dual-Center Study
    (Elsevier Science Inc, 2017) Simsek, C.; Dogan, S. M.; Piskin, T.; Okut, G.; Cayhan, K.; Aykas, A.; Tatar, E.
    Background. Ureteric stenosis (US) is the most common urologic complication after kidney transplantation. In this dual-center retrospective study we compared the efficacy and safety of open surgery versus interventional radiology for the management of US. Methods. From 2009 to January 2016, US was treated by surgical revision in 22 (7.8%) out of 281 recipients at one center (group 1) and managed by percutaneous nephrostomy with antegrade nephroureteral stenting (PNAS) in 22 (14.2%) out of 155 recipients at the other center (group 2). Results. Three patients in group 1 required reintervention and again were treated with open surgery. With a mean follow-up of 42.1 +/- 38.7 months, graft function improved in all but one patients (95%). Three patients in group 2 were admitted with relapse of US not amenable to 2nd PNAS, and 2 of them were managed with surgery. These 3 and 2 other cases with improved graft function after PNAS lost their grafts and returned to hemodialysis. The remaining 17 patients (77%) still have functioning grafts. There was no statistically significant difference between the efficacy of PNAS and open surgery for the management of post-transplantation US. However; a benefit in favor of open surgery existed for type 2 urinary tract obstruction in terms of decreased reintervention rate and much better protection of the graft function and survival. Conclusions. Both interventional radiology and open surgery have acceptable efficacy rates in the management of ureteric complications after renal transplantation. Open surgery is a better treatment option for type 2 obstruction.