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  • Title: Effect of general anesthesia on plasma cardiac troponin I concentrations in healthy horses.
    Author: Slack J, Boston R, Driessen B, Reef V.
    Journal: J Vet Cardiol; 2011 Sep; 13(3):163-9. PubMed ID: 21821476.
    Abstract:
    OBJECTIVE: To evaluate the effect of general anesthesia on plasma cTnI concentrations in horses. ANIMALS, MATERIALS AND METHODS: Thirty-two horses undergoing general anesthesia and either elective surgery or MRI without surgery were prospectively studied. Twenty-nine horses (22 surgical, 7 imaging) completed the study. Plasma cTnI concentrations were determined prior to anesthesia and at 6, 12 and 24 h following discontinuation of the inhalant anesthetic. RESULTS: All horses had cTnI values within the reference range at all time points. Six horses (21%) developed detectable cTnI 6 or 12 h following anesthesia. Risk factors for detectable cTnI include increasing age and dorsal recumbency. Horses with detectable cTnI had significantly lower mean and diastolic arterial blood pressures than those without detectable cTnI. CONCLUSION: Uncomplicated general anesthesia with or without surgery does not result in cardiac troponin I elevations above the reference range in the first 24 h postoperatively.
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