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Subcutaneous Ureteral Bypass

For more information on ureteral obstruction and other options see here

  • Definitive treatment for ureteral obstruction in cats; also suitable for some dogs.
    • Cats are more prone to stricture (obstruction due to scar tissue) with ureteral stones; such stricture can obstruct a stent
  • Nephrostomy tube connected to a cystostomy tube – functions as another ureter


  • Subcutaneous port
  • Enables urinalysis/culture from affected kidney
  • Enables pyelogram/contrast studies
  • Flush system every 3 months to reduce risk of obstruction by blood clot or any calculi that may be forming
  • Unilateral or bilateral as needed

  • Bypass markedly reduces  the major risks of stricture (scar tissue obstruction) and leakage associated with primary surgery to remove the obstruction.

Please schedule an appointment with our board-certified surgeon, Dr. Jeff Christiansen at the clinic of your choice, to evaluate your pet and to discuss ureteral stenting to improve your pet's or patient's length and quality of life.

If you have additional questions, please feel free to e-mail Dr. Christiansen directly.

For further information on the SUB, see Norfolk Vet Products