Maropitant or ketamine to control of pain in bitches undergoing ovariohysterectomy

Abstract

Pain control is directly related to the patient's well-being and postoperative recovery. This study aimed to evaluate the analgesic effect of Maropitant citrate (GM) and Ketamine (GC), in bolus, followed by continuous infusion, in bitches undergoing ovariohysterectomy, that was evaluated through pain scales and physiological parameters. The animals in the CG had a higher heart rate (FC) in intraoperative period (p=0.022). In the same period, 7 animals of the GM presented hypotension (PAS < 90 mmHg). The VAS sedation scale showed a significant difference between the groups (P = 0.004) with the GM presenting a mean score of 0.30 ± 0.50 and the CG 0.14 ± 0.35. The DIVAS, Glasgow and Melbourne pain scales did not show relevant significance between groups (P > 0.05). The questionnaires delivered and completed by the tutors showed, among themselves, a significant difference in relation to changes in behavior in general (P = 0.03) and when eating (P = 0.01), both lower values in GM, also presented lower values in the item “refusal to eat” (P = 0.02). Both drugs proved to be effective in the recommended procedure and route. The use of maropitant as an analgesic adjuvant can present, in addition to effective analgesia, an early return of appetite.