Exercise-Associated Sudden Death Working Group

A HISA pilot program released results from a study of advanced cardiac monitoring of Thoroughbreds that shows atrial fibrillation (AF)--traditionally considered a benign, performance-limiting condition--can worsen during exercise, cause a more severe arrhythmia that leads to sudden death, according to a press release from HISA on Thursday. The group said that electrocardiogram data from affected horses that displayed AF both at rest and under exertion, underscores the need for early detection and highlighs the potential of integrating routine cardiac screening into pre-training and pre-race evaluations. During the first six months...

Edited Press Release Funding for a pair of research studies has been announced by the Horseracing Integrity and Safety Authority (HISA)'s Exercise-Associated Sudden Death (EASD) Working Group. The group was formed in October of 2023 to advance research initiatives and collaborate with industry leaders on the critical issue of exercise-associated sudden death. The Working Group is made up of veterinarians and equine researchers focused on the scientific understanding and prevention of sudden, unexpected fatalities occurring during or closely following exercise in Thoroughbred racehorses. "The EASD Working Group is working diligently...