Resumen

ZULUAGA, D. A et al. SEDATION AND ANALGESIA WITH XYLAZINE BOLUS AND MORPHINE IN CONTINUOUS INFUSION IN A MARE STANDING SUBJECTED TO OVARIECTOMY: CASE REPORT. Rev. Med. Vet. Zoot. [online]. 2012, vol.59, n.3, pp.176-185. ISSN 0120-2952.

Anesthesia is always a procedure that leads many risks in the quirurgical act. A common procedure in horses is to make standing surgeries to decrease the general anesthesia risks. For standing anesthetic procedures in horses there have been used combinations of xilazine bolus and local anesthesia; however, irregular analgesia and marked ataxia are frequent complications. In this clinical case it was evaluate a protocol of xilazine bolus 0,6 mg/kg I.V. and a constant rate infusion of morphine 30 µg/kg/h I.V., with local anesthesia for the extraction of a granulosa cell tumor in one mare. In general, during the surgical procedure it was observed good analgesia, moderate sedation and slight ataxia, without cardiovascular or respiratory problems which favored the surgical procedure; it was observed only a short period without intestinal motility that returned to normality spontaneously. The mare recovered fully from the surgical procedure and presented evidence of estrus twice within one year after the intervention. The anesthetic and surgical procedures used in this case were appropriate and lead recovery of the normal reproductive behavior of this mare.

Palabras clave : anesthesia; analgesia; morphine; xylazine; ovariectomy.

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