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Kidney Int. 2014 Feb;85(2):471-7. doi: 10.1038/ki.2013.464. Epub 2013 Nov 27.

A randomized controlled trial comparing intravesical to extravesical ureteroneocystostomy in living donor kidney transplantation recipients.

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  • 1Division of Transplant Surgery, Department of Surgery, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.
  • 2Division of Nephrology, Department of Internal Medicine, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.


Urological complications after kidney transplantation are mostly related to the ureteroneocystostomy leading to significant morbidity, mortality, and high costs. The most commonly used techniques for the ureteroneocystostomy are the intravesical and the extravesical anastomosis. No evidence in favor of one of these two anastomoses exists. Our aim was to determine the technique with the best outcome regarding urological complications in a prospective randomized controlled trial (Netherlands Trial Register NTR2320). We randomized 200 consecutive recipients of a living donor kidney for either an intravesical or an extravesical anastomosis. The primary outcome was defined as placement of a percutaneous nephrostomy. No significant differences were found in the number of percutaneous nephrostomy placements or ureter reinterventions between both groups. Nevertheless, significantly fewer urinary tract infections occurred in the group with an extravesical anastomosis. In addition, this anastomosis was performed significantly faster compared with the intravesical anastomosis. Thus, extravesical ureteroneocystostomy was associated with significantly fewer urinary tract infections and might be preferable because of its surgical simplicity.

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