Simultaneous cystometry and uroflowmetry (micturition study) for evaluation of the caudal part of the urinary tract in dogs: studies of the technique.
A procedure similar to one used for urodynamic evaluation of persons was adapted for simultaneous cystometry and uroflowmetry in dogs. Percutaneous transabdominal urinary bladder catheterizations were used for bladder infusion and cystometry, so that urine flow during voiding would not be altered by urethra instrumentation. The technique was evaluated twice in each of 12 healthy dogs (6 males and 6 females). Studies of individual dogs were performed 1 week apart. Comparisons were made between xylazine and oxymorphone for sedation to accomplish the procedure. Although the 2 drugs provided adequate sedation, oxymorphone was unsatisfactory because it interfered with micturition, whereas xylazine generally did not. Adverse consequences of the procedure occurred infrequently and were minor. According to results of urinalyses, hematuria or pyuria, or both, appeared during the week after the procedure was done in a few dogs, and staphylococcal bacteriuria was induced in 4 dogs. Fluid leakage from urinary bladders was not demonstrated by abdominal paracentesis immediately after each procedure or by contrast radiography performed the day after the 2nd study for each animal. Micturition studies were concluded to be reasonably safe to do, especially when performed by experienced individuals. The studies were judged to have considerable potential value as a means to evaluate lower urinary tract function in dogs.
D000758:Anesthesia / Q000662:veterinary; D000818:Animals; D002404:Catheterization / Q000009:adverse effects / Q000662:veterinary*; D004285:Dogs / Q000502:physiology*; D001743:Urinary Bladder / Q000502:physiology*; D014552:Urinary Tract Infections / Q000209:etiology / Q000662:veterinary