Acute Prosthetic Aortic Valve Thrombosis Presenting as Acute Myocardial Infarction

Cesar E. Mendoza MD, Alexandre C. Ferreira MD, Eduardo de Marchena MD
 

Myocardial infarction (MI) due to coronary artery embolization is a rare and potentially lethal complication of prosthetic heart valve thrombosis. A 58-year-old man in whom the aortic valve was replaced with a bileaflet mechanical valve presented with an acute anterior MI. Valvular dysfunction was detected by physical examination, and confirmed by two-dimensional echocardiography and cinefluoroscopy. Coronary angiography disclosed embolization of the left anterior descending artery.

Thrombotic encroachment of one of the prosthetic valve leaflets was found at reoperation. Failure to achieve adequate anticoagulation was likely due to an interaction between warfarin and herbal products. These findings have significant implications regarding the diagnosis and treatment of acute MI in patients with left-sided prosthetic heart valves, and emphasizes the importance of appropriate anticoagulation in this setting.
 
Untitled Document
Registered Users
Click here to view the file in pdf format or click here to logout from the site

Subscribers

You must be a subscriber and registered with the site to view these files. If you are a subscriber but have not yet registered with the site please click here.


Not yet subscribed?
Click here to subscribe using our simple online system