title: Comparison of anti-reflux mechanism between Double-J-Stent and standart Double-J-Stent use for risk of BK nephropathy and urinary tract Infection in kidney transplantation.
abstract: OBJECTIVE
  There are studies that show that double J stenting (DJS) increase BK nephropathy (BKN) 4 fold. DJS may cause vesicoureteral reflux (VUR) with normal bladder contraction. The aim of this study is to comparison risk of BKN, urinary tract infections (UTI) and postoperative urologic complications with the use DJS with anti-reflux device (ARD-DJS) and standart double J stent (St-DJS). Matherial and methods: Ninety patients (male/female: 50/40) that had undergone kidney transplantations in Diyarbakır Training and Research Hospital and Dicle University, Faculty of Medicine Hospital between January 2012 and April 2015 were enrolled in the study. Demographic data, immunosuppression protocols, presence of rejection, graft loss, postoperative urologic complications, UTI, plasma BK levels of the patients were evaluated retrospectively.
  
  
  RESULTS
  Median and IQR follow up time for ARD-DJS and St-DJS patients were 14 (12-18) months and 25 (16-30) months respectively. Five cases (5.5%) had BK viremia (P=0.025). All 5 cases with BK viremia were St-DJS users.
  
  
  CONCLUSIONS
  As a result for postoperative UTI and postoperative urinary complication risk there were no statistically significant difference between ARD-DJS use and St-DJS use during ureteral anastomosis. BKN univariate analysis were significantly less than those st-DJS used. Risc factors were evaluated. But results were not statistically significant in the logistic regression analysis. We think that to demonstrate this benefit, we need randomized controlled studies with more patients and longer follow up.
authors.affiliation: Diyarbakir Education and Research Hospital, Transplantation Center Diyarbakir, Turkey.
authors.forename: Nurettin
authors.initials: N
authors.lastname: Ay
authors.affiliation: Department of General Surgery, Dicle University Education and Research Hospital Diyarbakir, Turkey.
authors.forename: Mehmet Veysi
authors.initials: MV
authors.lastname: Bahadır
authors.affiliation: Department of Nephrology, Diyarbakır Gazi Yaşargil Education and Research Hospital Diyarbakır, Turkey.
authors.forename: Melih
authors.initials: M
authors.lastname: Anıl
authors.affiliation: Diyarbakir Education and Research Hospital, Transplantation Center Diyarbakir, Turkey.
authors.forename: Vahhac
authors.initials: V
authors.lastname: Alp
authors.affiliation: Department of Infectious Disease, Diyarbakır Gazi Yaşargil Training and Research Hospital Diyarbakır, Turkey.
authors.forename: Şafak
authors.initials: Ş
authors.lastname: Kaya
authors.affiliation: Department of Cardiovascular Surgery, Diyarbakır Gazi Yaşargil Education and Research Hospital Diyarbakır, Turkey.
authors.forename: Utkan
authors.initials: U
authors.lastname: Sevük
authors.affiliation: Department of General Surgery, Dicle University Education and Research Hospital Diyarbakir, Turkey.
authors.forename: Mesut
authors.initials: M
authors.lastname: Gül
authors.affiliation: Department of Nephrology, Diyarbakır Gazi Yaşargil Education and Research Hospital Diyarbakır, Turkey.
authors.forename: Ramazan
authors.initials: R
authors.lastname: Danış
keywords: BK nephropathy; Double J stenting; anti-reflux device