In this episode of Current Vet, Dr. Lottie talks about equine
atypical myopathy, how sycamore toxins disrupt muscle energy
metabolism, why the condition is an EMERGENCY, the key clinical
signs to recognise and how to manage affected horses and their
co-grazers.
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Timeline:
00:00 Intro
00:45 Case
02:32 Aetiology & Pathogenesis
05:29 Clinical Signs
09:40 Diagnosis
15:11 Treatment
20:15 Prevention
22:02 Key Points
23:45 Outro
References
Żuraw, A. et al. (2016) ‘Equine atypical myopathy caused by
hypoglycin A intoxication associated with ingestion of sycamore
maple tree seeds’, Equine Veterinary Journal, 48(4), pp. 418–421.
Available at: https://doi.org/10.1111/evj.12460.
Votion, D.M. et al. (2019) ‘Potential new sources of
hypoglycin A poisoning for equids kept at pasture in spring: a
field pilot study’, Veterinary Record, 184(24), pp. 740–740.
Available at: https://doi.org/10.1136/vr.104424.
van GALEN, G. et al. (2012) ‘European outbreaks of atypical
myopathy in grazing horses (2006–2009): Determination of
indicators for risk and prognostic factors’, Equine Veterinary
Journal, 44(5), pp. 621–625. Available at:
https://doi.org/10.1111/j.2042-3306.2012.00555.x.
Sander, J. et al. (2016) ‘Rapid diagnosis of hypoglycin A
intoxication in atypical myopathy of horses’, Journal of
Veterinary Diagnostic Investigation, 28(2), pp. 98–104. Available
at: https://doi.org/10.1177/1040638715624736.
Fabius, L.S. and Westermann, C.M. (2018) ‘Evidence-based
therapy for atypical myopathy in horses’, Equine Veterinary
Education, 30(11), pp. 616–622. Available at:
https://doi.org/10.1111/eve.12734.
Current Vet is an educational podcast intended for veterinary
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All content provided in this podcast and its associated materials
is for educational and informational purposes only. It is not
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Any clinical cases discussed in this podcast are fictional, and
are designed to reflect typical or likely clinical scenarios for
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