Clinical Evaluation of Total Intravenous Anesthesia Using a Combination of Propofol and Medetomidine Following Anesthesia Induction with Medetomidine, Guaifenesin and Propofol for Castration in Thoroughbred Horses

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概要

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• Seven Thoroughbred horses were castrated under total intravenous anesthesia (TIVA) using propofol and medetomidine. After premedication with medetomidine (5.0 μg/kg, intravenously), anesthesia was induced with guaifenesin (100 mg/kg, intravenously) and propofol (3.0 mg/kg, intravenously) and maintained with constant rate infusions of medetomidine (0.05 μg/kg/min) and propofol (0.1 mg/kg/min). Quality of induction was judged excellent to good. Three horses showed insufficient anesthesia and received additional anesthetic. Arterial blood pressure changed within acceptable range in all horses. Decrease in respiratory rate and hypercapnia was observed in all horses. Three horses showed apnea in a short time. Recovery from anesthesia was calm and smooth in all horses. The TIVA-regimen used in this study provides clinically effective anesthesia for castration in horses. However, assisted ventilation should be considered to minimize respiratory depression.

著者

• OHTA Minoru

  Racehorse Clinic, Ritto Training Center, Japan Racing Association (JRA)

• OKU Kazuomi

  Racehorse Clinic, Ritto Training Center, Japan Racing Association (JRA)

• KAKIZAKI Masashi

  Racehorse Clinic, Miho Training Center, Japan Racing Association

• ONO Keiichi

  Racehorse Clinic, Miho Training Center, Japan Racing Association

• Ohta Minoru

  Racehorse Clinic Ritto Training Center Japan Racing Association (jra)

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• Clinical Evaluation of Total Intravenous Anesthesia Using a Combination of Propofol and Medetomidine Following Anesthesia Induction with Medetomidine, Guaifenesin and Propofol for Castration in Thoroughbred Horses
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