Comparação de duas técnicas analgésicas no transoperatório de mastectomia unilateral em cadela - relato de caso

Abstract

The mastectomy surgery consists of a relevant anesthetic casuistry at the university veterinary hospital (HVU), being common mainly in female dogs with advanced age. The surgery has a curative objective, where the mammary chains and adjacent lymph nodes are removed, as it is a highly invasive procedure with a high algic stimulus, it is performed in two stages, for greater patient comfort in the postoperative period, due to extensive retraction of skin. The present work aims to report the case of a canine, submitted to two unilateral mastectomy surgeries and intraoperative evaluation of the nociceptive stimulus. The patient received two different analgesic treatments in each surgery; in the first surgery, analgesia was performed using continuous infusion of fentanyl, lidocaine and ketamine; in the second surgery analgesia was performed using the tumescent anesthesia technique with a 0.16% lidocaine solution. In both procedures we obtained adequate analgesia for the procedure and without relevant alteration between the evaluated parameters, however the surgery that used tumescent anesthesia had greater hemodynamic stability and lower opioid requirement in the immediate postoperative period. Being considered the tumescent with the best benefit to the patient.