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: the patient is an 84 year old male with a past medical history of hypertension, hypercholesterolemia, known coronary artery disease, and aortic stenosis, status post a coronary artery bypass graft in , secondary to three vessel disease, who presented with increased shortness of breath and dyspnea on exertion times several months. he denied paroxysmal nocturnal dyspnea. there was increased orthopnea and peripheral edema. he denied chest pain or palpitations. the patient had an echocardiogram in , which was done as part of aortic stenosis screening, which revealed mild left ventricular hypertrophy, ejection fraction of 60%, with transvalvular mean pressure of 65 and aortic valve area of 0.45. repeat echocardiogram on , revealed dilated left atrium and right atrium, ejection fraction of 55%, mean gradient of 92 and a valve area of 0.5 centimeter squared. due to these symptoms and aortic stenosis, the patient was referred for cardiac catheterization, which he underwent on , which revealed an aortic valve gradient of 35.8 and a valve area of 0.64. additionally, the catheterization revealed his native three vessel disease and additionally an occlusion of the left anterior descending distal to the touchdown of his saphenous vein graft and an 80% stenosis in the proximal obtuse marginal three. the patient was admitted to the ccu for observation and diuresis, as well as workup for possible redo coronary artery bypass graft/aortic valve replacement. past medical history: 1. hypertension. 2. hypercholesterolemia. 3. prior tobacco use. 4. hyperlipidemia. 5. coronary artery disease. 6. hyperhomocystinemia. 7. chronic atrial fibrillation. 8. prior e. coli bacteremia. 9. peptic ulcer disease. 10. claustrophobia. 11. hemorrhoids. 12. hard of hearing. 13. anemia. 14. arthritis. past surgical history: 1. status post lumbar laminectomy complicated by urinary retention which is now resolved in . 2. status post bilateral hernia repair. 3. coronary artery bypass graft. allergies: no known drug allergies. medications on admission: 1. captopril 12.5 mg three times a day. 2. zantac 150 mg twice a day. 3. lopressor 25 mg twice a day. 4. lipitor 20 mg once daily. 5. coumadin 6 mg monday, wednesday and friday and 4 mg other days. 6. folic acid 1 mg once daily. 7. tylenol 650 mg q4hours. physical examination: on admission, heart rate was 76, blood pressure 149/85, oxygen saturation 99% in room air. in general, the patient was in no acute distress. the oropharynx was moist. elevated jugular venous pressure to the angle of the jaw. the lungs were clear to auscultation bilaterally. cardiovascular was regular rate and rhythm, normal s1 and s2, no s3 and no s4. there was a ii/vi crescendo decrescendo murmur at the right upper sternal border. the extremities showed chronic venous stasis changes. the abdomen was soft, nontender, nondistended. laboratory data: electrocardiogram showed atrial fibrillation with a rate of 70 beats per minute, normal axis, slightly long q-tc, peaked t waves in ii, iii, v2, v3 and v4, upsloping st elevation in v2. cardiac catheterization , showed worsening native disease, patent grafts with an occluded left anterior descending distal to the touchdown of the saphenous vein graft, 80% stenosis in the proximal obtuse marginal three, two serial 90% stenoses in the obtuse marginal two proximal to the saphenous vein graft touchdown. hemodynamics showed wedge 35/30, cardiac output 3.8, cardiac index 2.0, svr 18/32. chest x-ray from , showed mild congestive heart failure. sodium 140, potassium 4.8, chloride 107, bicarbonate 24, blood urea nitrogen 36, creatinine 1.5 with baseline 1.1 to 1.3, glucose 64. white blood cell count 6.3, hematocrit 30.9, platelet count 195,000. inr 3.4, partial thromboplastin time 45.2. hospital course: 1. congestive heart failure - the patient had a preserved ejection fraction but it was felt his severe aortic stenosis was leading to his dyspnea on exertion and his congestive heart failure by evidence of his elevated wedge on catheterization. the patient had swan-ganz catheter in and he was diuresed with intravenous lasix with a goal of a pulmonary artery diastolic of about 28 mmhg. during his stay in the ccu, the patient diuresed greater than five liters negative with resolution of his lower extremity edema. although his pulmonary artery diastolic number never reached 20, it was felt based on the resolution of his edema and the evidence of hemoconcentration on his laboratory values that the patient had been adequately diuresed. the patient was therefore changed to p.o. lasix and transferred to the regular cardiac floor. 2. aortic stenosis - in terms of the patient's critical aortic stenosis leading to his congestive heart failure, a ct surgery consultation was obtained for the question of aortic valve replacement. the patient was unsure if he wanted to proceed with this option understanding that it would be a long road and that he was not the best surgical candidate. after much discussion with the patient and his family, the patient opted to defer the decision, to return home for the holidays and to decide as an outpatient whether or not to proceed with aortic valve replacement. at the time of his discharge, the patient was leaning towards not opting for the surgery understanding that he would likely have continued problems with shortness of breath, fluid overload. 3. ischemia - the patient had no chest pain while he was in the hospital, however, he did have worsening coronary artery disease by evidence of his catheterization and, if he had opted for the aortic valve replacement, he would likely also undergo a redo coronary artery bypass graft. in the meantime, the patient was continued on his cardiac regimen of captopril, lopressor, statin and an aspirin. 4. rhythm - the patient with chronic atrial fibrillation. his coumadin was held initially for his cardiac catheterization and he was therefore post catheterization maintained on a heparin drip until the decision regarding cardiothoracic surgery was made. once the decision was made that he would not be undergoing the surgery during this hospitalization, coumadin was restarted with a goal inr of greater than 2.0. early in his hospital course, the patient was well rate controlled, however, later in his course, he started having heart rates above 100. his beta blocker was titrated up with good effect. the patient did have one thirteen beat run of nonsustained ventricular tachycardia which was asymptomatic. 5. anemia - the patient received one unit of packed red blood cells and started on iron replacement for iron deficiency anemia. 6. gastrointestinal - the patient had some hemorrhoidal bleeding while on the heparin drip treated with local care. he was continued on h2 blocker for peptic ulcer disease. discharge status: the patient was discharged home with services and instructed to weigh himself every morning and to call his medical doctor if it is greater than three pounds and to adhere to a two gram sodium diet. final diagnoses: 1. congestive heart failure secondary to aortic stenosis. 2. aortic stenosis. 3. coronary artery disease. 4. atrial fibrillation. 5. peptic ulcer disease. 6. hemorrhoids. 7. iron deficiency anemia. medications on discharge: 1. aspirin 325 mg one once daily. 2. folic acid 1 mg one once daily. 3. lipitor 20 mg once daily. 4. ranitidine 150 mg p.o. twice a day. 5. senna one tablet twice a day. 6. vitamin c 250 mg three times a day. 7. iron sulfate 325 mg one tablet three times a day. 8. lasix 20 mg one p.o. once daily. 9. lopressor 100 mg twice a day. 10. lisinopril 5 mg once daily. 11. coumadin 6 mg once daily monday, wednesday and friday and 4 mg once daily tuesday, thursday, saturday and sunday. , m.d. dictated by: medquist36 procedure: combined right and left heart cardiac catheterization coronary arteriography using two catheters combined right and left heart angiocardiography transfusion of packed cells diagnoses: coronary atherosclerosis of native coronary artery pure hypercholesterolemia congestive heart failure, unspecified unspecified essential hypertension atrial fibrillation aortic valve disorders other chronic pulmonary heart diseases long-term (current) use of anticoagulants other complications due to other cardiac device, implant, and graft 

Answer: The patient is high likely exposed to