Neuromyotonia in a horse.

This article describes the clinical and electromyographic findings of neuromyotonia in a 19-month-old male crossbred Quarter Horse that presented with stiffness and muscle asymmetry in the hind limbs as well as sacrococcygeal, paravertebral, and gluteal myokymia. An electromyographic study showed spontaneous continuous muscle fiber activity with high-frequency discharges, fibrillations, positive sharp waves, fasciculation potentials, and complex repetitive discharges. Histological examination of the gluteal muscle showed a mixed neurogenic and myopathic pattern. The findings are consistent with neuromyotonia. © 2018 The Authors. Journal of Veterinary Internal Medicine published by Wiley Periodicals, Inc. on behalf of the American College of Veterinary Internal Medicine.

Citation

Luiza Stachewski Zakia, Mariana Isa Pocci Palumbo, Raffaella Bertoni Cavalcanti Teixeira, Luiz Antônio Lima Resende, Mauro Pereira Soares, José Paes de Oliveira-Filho, Rogério Martins Amorim, Alexandre Secorun Borges. Neuromyotonia in a horse. Journal of veterinary internal medicine. 2019 Jan;33(1):287-291

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PMID: 30511761

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