Comparação da anestesia epidural com detomidina e/ou meperidina em cadelas submetidas a ovariossalpingohisterectomia.

Abstract

Ovariosalpingohisterectomy is an elective or therapeutic surgical procedure, with the pain control being the veterinarian's commitment. In the experiment, the objective of this study was to compare the efficacy of α-2 agonist drugs in isolation or associated with epidural opioids to perform OSH. Sixteen SRD bitches were selected in two groups (GLD and GLDM), with a mean weight of 14 kg, and age between 1 and 7 years. Considered suitable only after clinical examination and hemogram. The preanesthetic induction occurred with acetramazine 0.2% (0.05mg / kg / IM) followed 20 minutes later by anesthetic induction with Propofol 1% (5mg / kg / IV) and animals submitted at the same time to epidural anesthesia. Isofluorane was standardized in the anesthetic rescue of the animals that demonstrated pain. Previously, in M0, the baseline respiratory rate (HR), heart rate (HR) and patient temperature were measured. In the transoperative period, HR, RR and blood pressure were measured in M1 (Dense skin), M2 (Dieresis of the Alba line), M3 (Right ovary traction), M4 (Left ovary traction), M5, M6 (Muscle raffia), M7 (subcutaneous raffia and skin). Both protocols received a volume of epidural anesthesia in the proportion of 1mL / 4Kg and had the surgical procedure performed by the same surgeon. In the GLD group, epidural anesthesia with lidocaine (2% with vasoconstrictor) was used associated with Detomidine 1% (0.01mg / kg). The GLDM group received the same protocol plus 5% Meperidine (4mg / kg). The results of the experiment demonstrated the impossibility of performing surgical doses at these doses in both protocols used, and further studies are required about the dose and drugs used in this way. The GLD group with 8 animals was surgically successful in 4 animals (50%). The GLDM group achieved surgical success in 3 animals (37.5%).