The diagnosis and management of atrial fibrillation in the horse
M Kimberly J McGurrin
Health Sciences Centre, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
Abstract: Atrial fibrillation is the most common performance-limiting arrhythmia in the horse. Detailed cardiovascular evaluation will help guide prognosis and treatment. Many affected horses have lone atrial fibrillation (no predisposing cardiac abnormalities). These horses have a good prognosis for return to performance if sinus rhythm can be restored. The main therapeutic option continues to be quinidine, which has been used for over 60 years. Transvenous electrical cardioversion has proven to be a successful alternative. Other therapeutic options are being explored, but are currently limited.
Keywords: atrial fibrillation, quinidine, cardioversion, ECG, arrhythmia, TVEC
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