Consider the following medical report that includes the patient's historical health records. Use it to predict the disease that the patient is high likely exposed to. 

 Medical Report: allergies: aspirin attending: addendum: will stop plavix while on coumadin, to restart plavix after coumadin is discontinued, spoke with np at tcu to update discharge medications discharge disposition: extended care facility: tcu - md procedure: single internal mammary-coronary artery bypass extracorporeal circulation auxiliary to open heart surgery combined right and left heart cardiac catheterization coronary arteriography using two catheters angiocardiography of left heart structures atrial cardioversion open and other replacement of aortic valve with tissue graft other surgical extraction of tooth diagnoses: coronary atherosclerosis of native coronary artery pure hypercholesterolemia urinary tract infection, site not specified congestive heart failure, unspecified unspecified essential hypertension unspecified acquired hypothyroidism cardiac complications, not elsewhere classified atrial fibrillation aortic valve disorders cardiac pacemaker in situ dental caries, unspecified 

Answer: The patient is high likely exposed to