Prevalence of clinical signs and factors impacting expression of myosin heavy chain myopathy in Quarter Horse-related breeds with the MYH1 E321G mutation.

Stephanie J ValbergAbigail E SchultzCarrie J Finno Rebecca R BelloneShayne S Hughes

Published in: Journal of veterinary internal medicine (2022)

Approximately 20% of My/N QH develop rapid atrophy. Atrophy is more common (80%) in homozygous My/My QH and less likely to resolve. Inciting causes such as vaccination and infection are inapparent in over half of cases.

Keyphrases

binding protein
poor prognosis
risk factors
late onset
hypertrophic cardiomyopathy
heart failure
genetic diversity
atrial fibrillation