RESUMO.A pesquisa foi desenvolvida no Hospital Veterinário, do Departamento de Medicina Veterinária da Universidade Federal Rural de Pernambuco, onde foram utilizadas 15 gatas hígidas, com idade entre um e três anos, com peso que variou entre três e quatro quilos distribuídas em três grupos e submetidas à ovary salpingohisterectomia. Os animais foram pré-medicados com acepromazina 2%, 0,05 mg/kg. O cloridrato de cetamina 50 mg/ml, 10 mg/kg e diazepam 5mg/ml, 0,5 mg/kg, foram utilizados para a indução anestésica e a manutenção foi feita utilizando-se o cloridrato de cetamina na dose de 4 mg/kg. Em seguida, foram submetidas a anestesia epidural sacrococcígea utilizando-se apenas clonidina na dose de 20 μg/kg ou xilazina na dose 2 mg/kg ou solução salina (placebo) 1 ml/3,5 kg. Os animais foram avaliados quanto aos parâmetros hemodinâmicos, respiratórios e temperatura corporal, além da avaliação do potencial analgésico e intensidade do bloqueio alcançado a partir da mensuração de glicose, lactato e cortisol, desde o período pré-anestésico até o término da cirurgia Palavras chave: anestesiologia, gatos, veterináriaComparison of alpha-2-adrenoreceptors in the epidural anesthesia sacrococcigea of cats undergoing ovariohysterectomy ABSTRACT. The research was carried out at the Veterinary Hospital, the Department of Veterinary Medicine of Rural Federal University of Pernambuco, where they were used 15 cats undergoing ovariosalpingohisterectomy, participated and aged between one and three years, with weight that ranged between three and four pounds, divided into three groups, submitted to ovariosalpingohisterectomy. The animals were pre-medicated with acepromazine 2%, 0.05 mg/kg. The Ketamine hydrochloride 50 mg/ml, 10 mg/kg and diazepam 5 mg/ml, 0.5 mg/kg, were used for anesthetic induction and maintenance was performed using the ketamine hydrochloride at a dose of 4 mg/kg. Then, they were subjected to epidural anesthesia the sacrococcygeal using only clonidine in dose of 20 μg/kg or xylazine at the dose 2 mg/kg or saline (placebo) 1 ml/3.5-kg. The animals were assessed in relation to hemodynamic parameters, respiratory and body temperature, in addition to the evaluation of the analgesic potential and intensity was reached from the measurement glucose, lactate and cortisol levels, since the pre-anesthetic until the end of the surgery.
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