Addition the magnesium sulfate in the management the pain in dogs subjected to ovariohysterectomy

Abstract

Goal. The objective of this research was to determine the efficacy of magnesium sulfate as an adjunct to analgesia in bitches undergoing abdominal cavity surgery. Materials and methods. In the present investigation, thirty female dogs underwent elective OVH through the midline, which were randomly distributed and single-blinded into two groups. Group 1: 15 patients were medicated in the postoperative period with magnesium sulfate (25 mg/Kg), cephalexin (25 mg/Kg) and meloxican (0.2 mg/Kg). In group 2, magnesium sulfate was replaced by 0.9% saline solution at a dose of 0.25 ml/Kg. Once the surgical act was over, the patients were transferred to the recovery room, where the estimation of the pain using the Melbourne scale, at 2-, 4-, 6- and 8-hours post-surgery. Results. The maximum pain score level for both groups occurred in the immediate postoperative period, group 1 presented a mild pain level, group 2, moderate pain, finding significant statistical differences in both groups, the pain decreased as the treatment progressed. weather. Heart rate values ​​in group 1 remained within range values, while group 2 showed an increase of 26% in the first two hours. Conclusions. With the results obtained in the present investigative work, it was possible to establish that the addition of magnesium sulfate significantly reduces the level of pain in bitches subjected to elective OVH.