Cardiovascular causes of exercise intolerance

The Veterinary Clinics of North America. Equine Practice
L A Mitten

Abstract

Exercise intolerance, due to cardiovascular disease in horses, may be caused by cardiac arrhythmias, valvular regurgitation, congenital abnormalities, myocardial dysfunction, pericardial disease, and vascular thrombosis. The most common cardiovascular cause of exercise intolerance in horses is atrial fibrillation. Cardiovascular abnormalities such as cardiac arrhythmias or murmurs, however, are common in athletic horses and are not always associated with exercise intolerance. Use of an electrocardiography (during rest and exercise) and echocardiography may be necessary to better determine the significance of the cardiovascular abnormality.

Citations

Jan 30, 2010·The Journal of Veterinary Medical Science·Enrica ZuccaElisabetta Ferro
Nov 18, 2011·Journal of the American Veterinary Medical Association·Amy M SantonastasoJoann Slack

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