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A 5-year-old castrated male Nigerian Dwarf goat was referred to the Oregon State University Veterinary Teaching Hospital with a history of recurrent urethral obstruction. The goat had undergone a perineal urethrostomy 1.5 years earlier for
Perineal urethrostomy is predominantly performed in male cats to bypass the distal portion of the urethra and create a permanent opening between the pelvic urethra and perineal skin. Primary indications for PU include recurrent distal urethral
Perineal urethrostomy is performed in male cats to relieve and prevent recurrence of urethral obstruction. A surgeon creates an opening from the pelvic portion of the urethra to the perineal skin and amputates the penile portion of the urethra
Summary
It has been reported that the prevalence of bacterial urinary tract infection (UTI) increases after perineal urethrostomy in male cats. Perineal urethrostomy, using a surgical technique preserving striated urethral sphincter function, was performed on 2 groups of cats. The first group consisted of healthy castrated cats. The second group of cats had recurrent or persistent urethral obstruction. All cats had normal urethral sphincter function after surgery, as measured by urethral pressure profilometry and electromyography. Long-term periodic urinalysis and bacterial culturing of urine was performed on all cats. Twenty-two percent of the previously obstructed cats had recurrent bacterial UTI, compared with none of the healthy cats. On the basis of these findings, we suggest that perineal urethrostomy per se does not predispose cats to bacterial UTI, but surgical alteration of the urethral meatus combined with an underlying uropathy may increase the prevalence of ascending bacterial UTI after surgery.
crystalluria. Hematology was unremarkable, biochemistry showed stress hyperglycemia (232 mg/dL; reference range, 70 to 140 mg/dL). The cat was taken to surgery for a perineal urethrostomy. A sterile Tomcat catheter was passed into the urinary bladder with some
seen on the contrast urethrocystogram, a perineal urethrostomy was planned during the same anesthetic episode with the intention of excising the tear along with the distal portion of the urethra. Figure 2 Retrograde contrast urethrocystogram (A) and
proportion of long-term success (< 36 months survival) and a higher risk of complications. 15 , 23 , 24 , 27 , 30 – 32 Perineal urethrostomy carries a mean survival time of 34 months, and an approximately 52% success rate with the most common complication
preoperatively with trimethoprim-sulfamethoxazole (30 mg/kg [13.6 mg/lb], PO, q 12 h) and phenylbutazone (2.2 mg/kg [1 mg/lb], PO, q 12 h). For a temporary perineal urethrostomy, the stallion was sedated with detomidine (0.03 mg/kg [0.014 mg/lb], IV, once), and
. ABBREVIATIONS PAUC Percutaneous antegrade urethral catheterization PU Perineal urethrostomy a. 0.035-inch Weasel Wire, Infiniti Medical LLC, Menlo Park, Calif. References 1. Williams JM . Surgical management of blocked cats. Which approach
