title: [Ureteral stricture following renal transplantation: risk factors and surgical management].
abstract: OBJECTIVE
  To evaluate the prevalence and the risk factors of the ureteral stricture following renal transplantation and outcomes of surgical managements.
  
  
  METHODS
  By a retrospective analysis, we assessed 1 293 patients who underwent renal transplantation between January 2001 and December 2013 at our center. The patients with ureteral stricture had undergone surgical management which included neoureterocystostomy, ureteral anastomosis with the native ureter and endoscopic therapy.
  
  
  RESULTS
  Ureteral stricture following renal transplantation was diagnosed in 17 cases (1.3%) including 6 males and 11 females. The mean age of the patients at the time of surgery was 44 (29 to 64) years. The median interval between ureteral stricture obstruction and kidney transplantation was 4 (1 to 120) months. The ureteral stricture was significantly correlated with multiple renal arteries, donor age and delayed graft function. The effective rate of surgical management was 65.75%.
  
  
  CONCLUSIONS
  The incidence of ureteral stricture as a urologic complication after renal transplantation is low. The advanced techniques that preserve the ureteric blood supply should be applied. The surgical managements have respective advantages and disadvantages. The neoureterocystostomy shows best outcome, while ureteral anastomosis with the native ureter has poor outcome.
authors.affiliation: Department of Urology, Peking University Third Hospital, Beijing 100191, China.
authors.forename: Lei
authors.initials: L
authors.lastname: Liu
authors.affiliation: Department of Urology, Peking University Third Hospital, Beijing 100191, China.
authors.forename: Lu-lin
authors.initials: LL
authors.lastname: Ma
authors.affiliation: Department of Urology, Peking University Third Hospital, Beijing 100191, China.
authors.forename: Lei
authors.initials: L
authors.lastname: Zhao
authors.affiliation: Department of Urology, Peking University Third Hospital, Beijing 100191, China.
authors.forename: Hong-xian
authors.initials: HX
authors.lastname: Zhang
authors.affiliation: Department of Urology, Peking University Third Hospital, Beijing 100191, China.
authors.forename: Xiao-fei
authors.initials: XF
authors.lastname: Hou
mesh_terms: D000328:Adult; D003251:Constriction, Pathologic; D051799:Delayed Graft Function; D005260:Female; D006801:Humans; D015994:Incidence; D016030:Kidney Transplantation / Q000009:adverse effects*; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D012307:Risk Factors; D014513:Ureter / Q000473:pathology; D014525:Urethral Stricture / Q000453:epidemiology*