Accessibility View Close toolbar
Menu

Location

Ureteral Obstruction

The ureter is the tube between the kidney and bladder

Ureter size

  • Canine ureter 1-3 mm internal diameter
  • Feline ureter approximately 0.5 mm internal diameter

Causes of Obstruction

  • Ureteroliths (kidney stones lodged in the ureter)
  • Strictures (scar tissue)
  • Neoplasia (tumor)
  • Extraluminal compression (obstruction caused by something outside of the ureter compressing it)

Consequences of Obstruction

  • Blood flow to the kidney is diminished immediately
  • Permanent damage in less than a week
  • Medical therapy should be attempted for no more than 24 hours
  • if no resolution, need to be more aggressive to save kidney
  • Bilateral obstruction can be fatal within hours to days
    • Inability to eliminate potassium leads to fatal cardiac arrhythmia (irregular heart rhythm)

Options

  • Ureterotomy – cutting into the ureter to remove obstruction
  • Stricture or leakage in 20-40% of cases even in the most experienced hands
  • Ureteronephectomy – removing the kidney and ureter
  • Low short-term complication rate, but poor option long-term
  • 20-40% of pets may develop new stones within 4 months
  • Ureteral stents – recommended treatment for dogs
  • Subcutaneous Ureteral Bypass (SUB) - recommended treatment for cats (and dogs in some cases)

Contact

Superior Veterinary Surgical Solutions


Island Animal Hospital (Merritt Island) - (321) 453-2430

Aloha Pet and Bird Hospital (Indian Harbour Beach) - (321) 777-6444

Maybeck Animal Hospital (West Melbourne) - (321) 723-5911

Animal Specialty and Emergency Hospital - (321) 752-7600

Highlands Animal Hospital - (772) 388-1883

Please ask for Dr. Christiansen specifically to make sure you see me!

Testimonials

Read What Our Clients Say

  • "My Labradoodle, LuLu, needed knee surgery. Her health is my top priority, so I researched Veterinary Surgeons, and Dr. Christiansen was highly recommended to me. My experience with him has been wonderful, and Lulu loves him. His demeanor with her was so compassionate, you could really see how much he cares about animals.

    Lulu is fully recovered from her surgery, yet I still look to Dr. Christiansen as a source of advice and expertise regarding Lulu's well being."
    Debbie Arluck - Palm Bay, Florida