title: Impact of ureteral stenting on urological complications after kidney transplantation surgery: a single-center experience.
abstract: BACKGROUND
  Urological complications such as ureteral strictures and ureteral leakage can affect the outcome of kidney transplantation by increasing morbidity and mortality, including graft loss. Controversy still exists regarding the role of stents in renal transplantation. The aim of this study was to evaluate the role of ureteral stenting in kidney transplantation.
  
  
  METHODS
  We performed a retrospective study on a series of 798 consecutive renal transplants performed in our center between January 1, 2004, and December 31, 2011. Ureteral stents were used in 152 cases (19.1%) of the total (stent group) and were removed 2 weeks postoperatively. Donor and recipient age, sex, type of ureteroneocystostomy, stent and non-stent patients, cold and warm ischemia time, and urological complications were analyzed.
  
  
  RESULTS
  The overall incidence of urological complications was 7.8% (62 cases). Ureteral stenosis (3.1%) and ureteral leakage (2.4%) were the most common complications; 39.7% (25 cases) of complications were recorded in the first month after transplantation. Major urological complication rate was 3.3% in the stent group compared with 8.8% in the non-stent group (P = .04). However, stent use was associated with the increase of urinary tract infections rate in the stent group (51.3%) compared with the non-stent group (17.9%) (P = .03).
  
  
  CONCLUSIONS
  In our study, the use of ureteral stents significantly decreased urological complications in kidney transplant recipients but increased the risk for development of urinary tract infections.
authors.affiliation: Center for Uronephrology and Renal Transplantation, Fundeni Clinical Institute, Bucharest, Romania.
authors.forename: M
authors.initials: M
authors.lastname: Harza
authors.affiliation: Center for Uronephrology and Renal Transplantation, Fundeni Clinical Institute, Bucharest, Romania. Electronic address: drc_baston@yahoo.com.
authors.forename: C
authors.initials: C
authors.lastname: Baston
authors.affiliation: Center for Uronephrology and Renal Transplantation, Fundeni Clinical Institute, Bucharest, Romania.
authors.forename: A
authors.initials: A
authors.lastname: Preda
authors.affiliation: Center for Uronephrology and Renal Transplantation, Fundeni Clinical Institute, Bucharest, Romania.
authors.forename: V
authors.initials: V
authors.lastname: Olaru
authors.affiliation: Center of Internal Medicine-Nephrology, Fundeni Clinical Institute, Bucharest, Romania.
authors.forename: G
authors.initials: G
authors.lastname: Ismail
authors.affiliation: Center for Uronephrology and Renal Transplantation, Fundeni Clinical Institute, Bucharest, Romania.
authors.forename: L
authors.initials: L
authors.lastname: Domnisor
authors.affiliation: Center for Uronephrology and Renal Transplantation, Fundeni Clinical Institute, Bucharest, Romania.
authors.forename: D
authors.initials: D
authors.lastname: Daia
authors.affiliation: Center for Uronephrology and Renal Transplantation, Fundeni Clinical Institute, Bucharest, Romania.
authors.forename: I
authors.initials: I
authors.lastname: Mitroi
authors.affiliation: Clinical Center of Radiology, Medical Imaging and Nuclear Medicine, Central Clinical Military Emergency Hospital, Bucharest, Romania.
authors.forename: M O
authors.initials: MO
authors.lastname: Baston
authors.affiliation: Center for Uronephrology and Renal Transplantation, Fundeni Clinical Institute, Bucharest, Romania.
authors.forename: I
authors.initials: I
authors.lastname: Sinescu
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D015994:Incidence; D016030:Kidney Transplantation / Q000009:adverse effects*; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D012189:Retrospective Studies; D012383:Romania / Q000453:epidemiology; D015607:Stents; D066027:Transplant Recipients; D014513:Ureter / Q000601:surgery*; D014517:Ureteral Obstruction / Q000453:epidemiology / Q000209:etiology* / Q000601:surgery