Heart & Cardiovascular Problems

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Aortic Rupture Cited in O’Connor Event Horse Death

According to a statement released on the U.S. Eventing Association (USEA) Web site, preliminary necropsy findings on the horse Tigger Too, a 17-year-old gelding, show that he passed away from an acute abdominal aortic rupture. Final necropsy result

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Anatomy and Physiology: Complete Series

Learn how your horse’s anatomy works with our complete anatomy and physiology guide, including basic terminology, skin, forelimbs, hindlimbs, feet/hooves, head and neck, tendons/ligaments, muscles, digestive, cardiovascular and reproductive systems.

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Treating Irregular Heartbeats

Chances are you know someone with a heart murmur–you might even have one yourself. Usually it’s discovered at birth, and most often it’s nothing to worry about. The heart is fine; it just makes a sound associated with blood flow. The same can be

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Hennessy Dead of Apparent Heart Failure

Coolmore Stud?s talented stallion Hennessy reportedly died of apparent heart failure Aug. 9 at Haras La Mission in Argentina. The 14-year-old son of Storm Cat out of Island Kitty, by Hawaii, had shuttled to Argentina for the Southern Hemisphere

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Echocardiographs and Pulmonary Arterial Pressures

Researchers have found that echocardiographic measurements of the pulmonary artery, aorta, and heart chambers gave a valid estimate of pulmonary artery pressures (PAP) in horses. The ability to measure PAP is key to diagnosing and following

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Aging and the Aortic Valve

Researchers from the United Kingdom report there is a decrease in contractile function of the horse’s aortic valve with age, resulting in aortic valve disease.

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World Cup Winner Electrocutionist Dead

Dubai World Cup winner Electrocutionist died of an apparent heart attack Saturday, several days after an abnormality was detected in the 5-year-old horse’s heart.


Dubai-based Godolphin Racing Inc. owned Electrocutionist, considered a to

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Australian Toxic Feed Case Decided

An Australian court awarded $71,000 in damages after a Sydney area family?s Thoroughbred mare died and three other show horses were permanently retired due to heart conditions resulting from contaminated feed, the Sydney Morning

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Helping Horses Worldwide

As a responsible horse owner, you make management decisions that affect the current well-being of your horse and his future vitality.

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Treatment of Equine Heart Arrhythmia

Human defibrillators are being used successfully to treat horses with irregular heartbeats (fibrillation). Kim McGurrin, DVM, a graduate student at the University of Guelph’s College of Veterinary Medicine, developed a procedure as part of her

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Sudden Death: Untimely End

Sometimes horses die suddenly when they aren’t involved in athletic competition. You walk out to stall or paddock one morning and your good trail horse or companion animal is lying dead, even though it had appeared normal and healthy when you fed the

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Do Horses Have Heart Attacks?

I read about horses dying of “heart attacks,” but I’ve had veterinarians tell me there’s no such thing as a horse having a heart attack. What are people talking about when they say a horse died of a heart attack?

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Impact of Valvular Heart Disease on Performance

Results of a four-year prospective study designed to determine the influence of training and heart size on atrioventricular (AV) valvular regurgitation (backflow of blood from the lower to the upper heart chambers) in Thoroughbred racehorses, an

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