Peer-reviewed veterinary case report
Third-Degree Atrioventricular Block and Collapse Associated with Eosinophilic Myocarditis in a Horse.
- Journal:
- Journal of veterinary internal medicine
- Year:
- 2017
- Authors:
- Luethy, D et al.
- Affiliation:
- Department of Clinical Studies-New Bolton Center · United States
- Species:
- horse
Plain-English summary
A horse experienced a serious heart issue called third-degree atrioventricular block, which caused it to collapse while resting. After the horse died, a thorough examination revealed it had a rare type of heart inflammation known as eosinophilic myocarditis, which had not been reported in horses before. Despite many tests, the exact cause of this heart condition could not be determined. Unfortunately, the treatment options were limited due to the rarity of the condition, and the horse did not survive.
Abstract
Third-degree atrioventricular block (AVB) and primary inflammatory myocarditis are uncommon findings in horses. The horse of this report presented for collapse at rest and was found to have multiple cardiac arrhythmias, most notably 3rd-degree AVB. The horse was subsequently diagnosed with eosinophilic myocarditis on necropsy, a rare form of myocarditis not previously reported in horses. Despite extensive testing, an etiologic agent could not be identified, illustrating the difficulty in identifying a specific cause of myocarditis in horses.
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Search related cases →Original publication: https://pubmed.ncbi.nlm.nih.gov/28295606/