Dissociative e anesthesia and balanced anesthesia in cats (Felis catus) submitted ovariohysterectomy

Abstract

Felines present peculiarities, among them the recognizement of pain is a big challenge for the clinical and surgical routine of veterinary medicine, as well the metabolism of some drugs in their bodies. This study’s objective was to evaluate and compare the efficiency of two anesthetic protocols: association of dexmedetomidine-dextrocetamine-methadone and the continuous infusion of alfentanil and dexmedetomidine midazolam-methadone and continuous infusion of fentanyl, during procedures of ovariohysterectomy on cats. The parametric cardiorespiratory, oxycapnometric variants, response to nociceptive stimuli, latency period, anesthetic plane quality and possible side effects were evaluated. Both protocols can be recommended to perform the ovariohysterectomy surgery on cats since they don’t significantly alter the physiological responses from the animals. The exploratory analysis of this experiment based itself on verifications of the presuppositions of the experimental model, the results where explained and analised using parametric variants, ANOVA of repeated means, and Tukey’s and Shapiro-Wilk’s tests.