Feline urinary diversion procedures (Proceedings)
Urine diversion techniques are performed to temporarily or permanently divert urine from its normal anatomic course from the kidney through the ureter to the bladder and finally through the urethra. Veterinarians are most familiar with temporary urine diversion (urethral catheters) that are often used to stabilize animals that are sick as a result of metabolic changes associated with urinary tract obstruction. Temporary diversion (peritoneal drainage) may also be used as a bridge to more definitive surgical procedures such as repair of a ruptured urinary bladder.
Permanent urinary diversion is performed as a surgical procedure to redirect or reconstruct portions of the urinary tract that have been damaged by trauma or neoplastic involvement or for palliation of recurring urethral obstruction. Most permanent procedures performed in animals have been to circumvent areas of the urethra prone to obstruction with calculi or mucus plugs.
Temporary DiversionA. Urethral
1. Useful for maintaining patency of urethra in obstructed animals, measurement of urine production in animals with renal disease, and as stents to allow uroepithelium to migrate over tears or lacerations to the urethra.
2. Soft rubber or silicone preferable to polypropylene and should be connected to a "closed" urinary system.
3. We do NOT routinely administer antibiotics to animals with indwelling catheters (selection for hospital/resistant pathogens) BUT we do urine culture and sensitivity when we remove the catheters.
B. Prepubic urinary diversion
1. Identical procedure to "feeding tube gastrostomy" tube placement but using the bladder.