An ethogram of post-anesthetic recovery behaviors in horses: comparison of pre- and post-anesthetic behaviors

Pain management is an important post‐operative concern. Pain scales may rely on the observer's subjective assessment of the level of discomfort and may not correlate with physiologic or pharmacologic measures of pain. The purpose of this study was to develop an objective measure of behavior in...

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Veröffentlicht in:Veterinary anaesthesia and analgesia 2003-04, Vol.30 (2), p.112-112
Hauptverfasser: Seibert, LM, Parthasarathy, V, Trim, CM, Crowell-Davis, SL
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creator Seibert, LM
Parthasarathy, V
Trim, CM
Crowell-Davis, SL
description Pain management is an important post‐operative concern. Pain scales may rely on the observer's subjective assessment of the level of discomfort and may not correlate with physiologic or pharmacologic measures of pain. The purpose of this study was to develop an objective measure of behavior in healthy pain‐free horses recovering from anesthesia that could be used for comparison with the behavior of horses recovering from a surgical procedure. Focal sampling with videotape and observation was done on five healthy horses before anesthesia to establish baselines. Behavioral measures included head turns, tail swishes, eyelid aperture/size, ear position, angle of neck, weight shifts, and ambulation. Physiologic measures included heart rate, respiratory rate, and temperature. The horses were anesthetized for 2 hours with isoflurane, and in the recovery stall, data were collected continuously on videotape from the time of extubation to standing. Focal sampling of 15 minutes was repeated at 1, 2, 4, and 24 hours after the horses returned to their stalls. Video data were analyzed using the Noldus Observer Video Analysis System. A wide variation in behavior was observed between horses in the recovery stall. Observations at 1, 2, and 4 hours revealed change from the up/forward ear position to the down ear position, and a decrease in weight bearing of the hind limb from a baseline of 11–12 minutes out of 15 minutes to 7–9 minutes with an increase in toe pointing. Time spent standing was similar to baseline of 93.8%, and the neck angle was not changed from baseline of 173.5°. Values had returned to baseline at 24 hours. Changes in behavior were induced by anesthesia alone and must be taken into consideration when evaluating analgesic treatments.
doi_str_mv 10.1046/j.1467-2995.2003.00133_28.x
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title An ethogram of post-anesthetic recovery behaviors in horses: comparison of pre- and post-anesthetic behaviors
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