Infusão contínua de fentanil, cetamina e fentanil associado à cetamina para analgesia trans-operatória em gatas anestesiadas com sevofluorano e submetidas a ovariossalpingohisterectomia eletiva

Abstract

This study aimed to evaluate the cardiorespiratory parameters in cats undergoing elective ovariohysterectomy, using fentanyl, ketamine and the combination of both drugs adjunct to general anesthesia. 24, healthy, mixed breed cats, classified as ASA I, originating from the HOVET - UFMT were used. The animals were randomly divided into 3 groups, which were administered in a bolus dose of fentanyl (1.8 mg/kg) in group 1 (GI), ketamine (0.6 mg /kg ) in group 2 (GII), and fentanyl (1.8 mg / kg) associated with ketamine (0.6 mg / kg) in group 3 (GIII). Anesthesia was induced with propofol, and initiated a continuous infusion of fentanyl (GI, 3mg/kg/h), ketamine (GII, 0.6 mg/kg/h) and association of fentanyl and ketamine (GIII, 3μg/kg/he 0.6 mg/kg/h, respectively), maintenance of anesthesia was performed with sevoflurane concentration in 1.5v% 200ml/kg/min diluted in 100% O2. The following variables (heart rate, respiratory rate, oxyhemoglobin saturation, end tidal concentration of carbon dioxide, mean arterial pressure and temperature) every 10 minutes from the trans - anesthetic period were evaluated. Parametric data were statistically analyzed using one-way ANOVA followed by Tukey ( p < 0.05). There was no statistically significant difference between group, the doses used in this study proved safe and effective.