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: history of present illness: mr. is a 51-year-old male who presents for coronary artery bypass graft and aortic valve replacement. he was referred to us from where he was seen in because of new onset of chest pain. however, his cardiac history dates back over 20 years when he had an episode of aortic valve endocarditis following dental work without prophylaxis. he was felt to have a bicuspid aortic valve and was treated with a prolonged period of intravenous antibiotics. during some of this time, he has been loss to follow up but not presented back in with acute sharp substernal chest pain that was intermittent but became persistent and prompted emergent medical attention. this was felt to be anginal-type pain as it was relieved with nitroglycerin, aspirin, and nitroglycerin paste. as part of his cardiac workup, he had a stress test that showed moderate anteroseptal apical inferior and inferoapical defects with a significant redistribution. he also had a cardiac catheterization that demonstrated a 70% to 80% stenosis in the proximal left anterior descending artery. he was also found to have 4+ aortic insufficiency and a dilated aortic root. his ejection fraction on cardiac catheterization was approximately 40%. past medical history: 1. hypertension. 2. endocarditis in . 3. hypercholesterolemia. 4. back pain. 5. insomnia. medications on admission: 1. aspirin 325 mg p.o. q.d. 2. lipitor. 3. zestril 5 mg p.o. q.d. allergies: he has no known drug allergies. physical examination on presentation: on physical examination his pulse was 75, respiratory rate was 10, blood pressure was 195/73. his weight was 95.4 kg. in general, he was a well-nourished anxious-appearing male of poor general hygiene. his head, eyes, ears, nose, and throat revealed he was edentulous. he has normal buccal mucosa. pupils were equal, round and reactive to light. extraocular movements were intact. neck was without jugular venous distention. there was no thyromegaly. chest was clear to auscultation bilaterally. there was a question of a pulsation at the suprasternal notch. the heart had a regular first heart sound and second heart sound, with a diastolic murmur that radiated bilaterally to his neck. the abdomen was obese, soft, nontender, and nondistended, with normal active bowel sounds, and no hepatosplenomegaly. extremities were without cyanosis, clubbing or edema and were warm and well perfused. neurologically, he was grossly intact. hospital course: the patient was admitted through same-day surgery, and on was taken to the operating room where he had a coronary artery bypass graft times one and aortic valve replacement. his grafts were left internal mammary artery to left anterior descending artery and #25 le pericardial valve. the patient's procedure itself was unremarkable. postoperatively, he was taken intubated to the cardiac surgery intensive care unit. he had a 4-day intensive care unit stay that was complicated initially a pressor requirement with neo-synephrine followed by fluid mobilization and respiratory distress requiring intravenous nitroglycerin and aggressive lasix dosing. in addition, he developed atrial fibrillation and was treated with amiodarone. finally, he was kept in the intensive care unit for observation of withdrawal, as it appeared that he was a heavy drinker. he was prophylaxed against withdrawal with ativan, and we never did see signs of pending delirium tremens. by the afternoon of the fourth postoperative day, he was transferred to the floor in stable condition. that evening, he nearly signed out against medical advice from the hospital. after an extensive discussion with him we convinced him to remain until we believed that it was safe for him to be discharged home. on the fifth postoperative day, , the patient was cleared by physical therapy to be discharged home. he was saturating adequately well on room air, and his wound appeared clean, dry, and intact. for this reason, we felt that it was then safe for him to be discharged home and the proper arrangements were made. medications on discharge: (the patient was discharged on the following medications) 1. amiodarone 400 mg p.o. q.d. 2. lopressor 50 mg p.o. b.i.d. 3. enteric-coated aspirin 325 mg p.o. q.d. 4. colace 100 mg p.o. b.i.d. 5. zestril 5 mg p.o. q.d. 6. lasix 20 mg p.o. b.i.d. (times seven days). 7. potassium chloride 20 meq p.o. b.i.d. (times seven days). 8. percocet 5/325 one to two tablets p.o. q.4-6h. p.r.n. discharge diagnoses: 1. aortic insufficiency. 2. coronary artery disease. 3. now status post coronary artery bypass graft times one with aortic valve replacement. 4. hypertension; partially controlled. 5. hyperlipidemia. , m.d. dictated by: medquist36 procedure: single internal mammary-coronary artery bypass extracorporeal circulation auxiliary to open heart surgery open and other replacement of aortic valve with tissue graft diagnoses: coronary atherosclerosis of native coronary artery pure hypercholesterolemia unspecified essential hypertension aortic valve disorders 

Answer: The patient is high likely exposed to