Endocarditis is a very uncommon disease in the horse. It is caused by bacterial infection of the endocardium resulting in damage to the valves, although vegemay also be found on the chordae tendineae or on the surface of the ventricular lumen.
Endocarditis can result from poor aseptic technique with intravenous injecbut there is usually no apparent predisposing factor and the source of the infection is seldom established. Horses of any age may be affected, although it is most commonly found in foals, or in middle-aged or older horses. The condition most commonly affects the aortic valve and MV, with the TV and pulmonary valve being affected rarely. The aortic valve is affected more often in adult horses, suggesting that underlying valvular degeneration may predispose to the condition. However, because endocarditis is so uncommon, it is difficult to make valid statements about predisposing factors.
6.6.1 Clinical signs
6.6.2 Diagnostic aids