Animals (May 2025)

Can Acute Neurological Disease Cause Cardiomyopathy in Horses?

  • Valentina Vitale,
  • Ana Velloso Álvarez,
  • María de la Cuesta-Torrado,
  • Patricia Neira-Egea,
  • Marie Vandecandelaere,
  • Elizabeth Tee,
  • Marina Gimeno,
  • Gaby van Galen

DOI
https://doi.org/10.3390/ani15101447
Journal volume & issue
Vol. 15, no. 10
p. 1447

Abstract

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In human medicine, neurological diseases have been associated with transient cardiac abnormalities. In horses, myocardial disease is rarely diagnosed and has been associated with a wide variety of causes. The aim of this article is to describe three horses with no previous cardiac disease, which all developed severe cardiomyopathy following neurological disease. A 5-year-old Shetland pony stallion was diagnosed with cardiomyopathy with arrhythmias following an episode of seizures caused by an accidental intra-arterial xylazine injection. A 20-year-old crossbred mare was hospitalised for an open fracture of the left maxillary bone with copious epistaxis from both nostrils and developed acute cardiomyopathy with arrhythmias following a venous air embolism. Both had elevated troponin concentrations. Multifocal areas of haemorrhages and coagulative necrosis within the myocardium were found at the post-mortem examination of a 4-year-old thoroughbred gelding who died shortly after suffering acute brain injury following a backward fall. Based on this report, we suggest that myocardial injury can also occur in horses following neurological disease. Equine patients with acute neurological disease may benefit from cardiac monitoring; otherwise, patients with unspecific or mild symptoms of cardiomyopathy are likely to remain unidentified. The prognosis associated with this type of cardiac disease remains to be defined.

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