title: Echocardiography in assessing mitral valve motion in 3 horses with atrial fibrillation.
abstract: Echocardiography is a  non-invasive, safe means of assessing intracardiac structures and their motion. In the normal motion of the mitral valve there is anterior motion noted during atrial systole. In 3 horses with atrial fibrillation the mitral valve motion had no anterior motion to correspond with atrial contractions. Quinidine returned the electrocardiogram of one horse to a sinus rhythm after which echocardiography demonstrated the reappearance of the anterior motion of the mitral valve.
mesh_terms: D000818:Animals; D001281:Atrial Fibrillation / Q000175:diagnosis / Q000662:veterinary*; D004452:Echocardiography / Q000662:veterinary*; D005260:Female; D006734:Horse Diseases / Q000175:diagnosis*; D006736:Horses; D008297:Male; D008943:Mitral Valve / Q000503:physiopathology*