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  • Title: A protocol for managing urethral obstruction in male cats without urethral catheterization.
    Author: Cooper ES, Owens TJ, Chew DJ, Buffington CA.
    Journal: J Am Vet Med Assoc; 2010 Dec 01; 237(11):1261-6. PubMed ID: 21118011.
    Abstract:
    OBJECTIVE: To determine efficacy of a protocol for managing urethral obstruction (UO) in male cats without urethral catheterization. DESIGN: Clinical trial. ANIMALS: 15 male cats with UO in which conventional treatment had been declined. PROCEDURES: Laboratory testing and abdominal radiography were performed, and cats with severe metabolic derangements or urinary calculi were excluded. Treatment included administration of acepromazine (0.25 mg, IM, or 2.5 mg, PO, q 8 h), buprenorphine (0.075 mg, PO, q 8 h), and medetomidine (0.1 mg, IM, q 24 h) and decompressive cystocentesis and SC administration of fluids as needed. Cats were placed in a quiet, dark environment to minimize stress. Treatment success was defined as spontaneous urination within 72 hours and subsequent discharge from the hospital. RESULTS: Treatment was successful in 11 of the 15 cats. In the remaining 4 cats, treatment was considered to have failed because of development of uroabdomen (n=3) or hemoabdomen (1). Cats in which treatment failed had significantly higher serum creatinine concentrations than did cats in which treatment was successful. Necropsy was performed on 3 cats in which treatment had failed. All 3 had severe inflammatory disease of the urinary bladder, but none had evidence of bladder rupture. CONCLUSIONS AND CLINICAL RELEVANCE: Results suggested that in male cats, a combination of pharmacological treatment, decompressive cystocentesis, and a low-stress environment may allow for resolution of UO without the need for urethral catheterization. This low-cost protocol could serve as an alternative to euthanasia when financial constraints prevent more extensive treatment.
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