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: past medical history: 1. tetralogy of fallot. 2. hypertension. 3. atrial fibrillation. 4. cva with no residual in . 5. pfo. 6. v-tach arrest in . 7. hyperlipidemia. past surgical history: 1. repair of tetralogy of fallot in at the age of 18 months. 2. status post blalock shunt at the age of 8 in . 3. status post pacer and aicd placement in . 4. status post renal stent. 5. status post urethroplasty. medications at home prior to admission: aspirin 81 mg p.o. once daily, lisinopril 2.5 mg p.o. once daily, atenolol 25 mg p.o. once daily, folate 1 tablet p.o. once daily, zocor 40 mg p.o. once daily, benadryl 25 mg p.o. once daily, ambien p.r.n., ativan p.r.n., nicotine patch daily, and coumadin (his last dose was prior to his admission). allergies: he has no known drug allergies. social history: he does use half a pack of cigarettes a day and 2 drinks per day. physical examination on admission: his temperature was 99.4, with a heart rate of 77 (in sinus rhythm), blood pressure was 116/78, respiratory rate was 20, saturating 98% on room air. he was awake, in no apparent distress. the lungs were clear bilaterally. he had a grade holosystolic murmur with good heart sounds. a well-healed sternotomy. his abdomen was soft, flat, and nontender. he had 2+ bilateral carotid, femoral, popliteal, and dp pulses and was moving all extremities with sensation intact. procedure: extracorporeal circulation auxiliary to open heart surgery diagnostic ultrasound of heart (aorto)coronary bypass of one coronary artery transfusion of packed cells repair of blood vessel with tissue patch graft open and other replacement of pulmonary valve with tissue graft other and unspecified repair of unspecified septal defect of heart diagnoses: coronary atherosclerosis of native coronary artery unspecified essential hypertension atrial fibrillation other and unspecified hyperlipidemia ostium secundum type atrial septal defect long-term (current) use of anticoagulants automatic implantable cardiac defibrillator in situ stenosis of pulmonary valve, congenital 

Answer: The patient is high likely exposed to