Mitral Valve Regurgitation in two Thoroughbred Stallions

Mitral valve (MV) disease is the most important valvular condition affecting athletic performance in horses.Twenty and 22 years old Thoroughbred Stallions used for breeding had suffered Vacuum Belt from increased respiratory and heart rate, poor performance and incomplete Buddy Stirrups ejaculate release during covering, since three months ago.Cardiac examination projected irregular cardiac rhythm after a halt and an early-mid-systolic murmur.