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: this is a 55-year-old gentleman, with known coronary artery disease, who underwent a four-vessel coronary artery bypass four years ago, who presented on with complaints of crescendo angina over the past week. the patient's cardiac enzymes were negative for myocardial infarction. the patient was transferred to for cardiac catheterization. past medical history: 1. status post mi years ago. 2. status post cabg in with all vein grafts. 3. status post pci with stent in . 4. hypertension. 5. hypercholesterolemia. 6. gerd. allergies: rocephin which gives him a rash. preoperative medication: 1. lotrel , 1 tablet po qd. 2. atenolol 50 mg po qd. 3. zocor 20 mg po bid. 4. enteric-coated aspirin 325 mg po qd 5. protonix 40 mg po qd. 6. imdur 15 mg po qd. 7. plavix 75 mg po qd. admission physical exam: pulse 60, regular rate and rhythm, blood pressure 161/81, respiratory rate 16, room air oxygen saturation 97%. the patient is alert and oriented x 3 without jvd. no carotid bruits. no thyromegaly. heart - s1, s2, no s3 or s4. muffled heart tones. lungs are clear to auscultation. abdomen is soft, nontender, nondistended, positive bowel sounds, no hepatosplenomegaly. extremities without clubbing, cyanosis or edema. admission laboratory data: significant for a white blood cell count 6.2, hematocrit 41.6, platelet count 246, potassium 4.3, bun 7, creatinine 0.9. ekg showed sinus rhythm, 66, t wave inversions in v1 and v6. hospital course: the patient was taken to the cardiac catheterization lab on day of admission, , where they found 85% ostial lad lesion proximal to the area previously stented, with a 60% in-stent restenosis, mild proximal circumflex disease, heavily calcified rca with midvessel occlusion. the previous graft to the om was nonoccluded. the vein graft to the pda was nonoccluded and not studied. the patient was referred to cardiac surgery for operative repair of his coronary artery disease. the patient was taken to the operating room on for a redo cabg x 3 with lima to lad, svg to lad, and svg to pda. in the operating room, transesophageal echocardiogram showed an ejection fraction greater than 55% with mild mitral regurgitation prior to the operation, which was reduced to trace mitral regurgitation after revascularization. the patient was transferred to the intensive care unit on a neo-synephrine and propofol infusion. the patient was quickly weaned and extubated from mechanical ventilation. on postoperative day #0, the patient required a moderate amount of volume resuscitation with subsequent blood transfusions. the patient continued to be hypotensive in the intensive care unit requiring neo-synephrine to maintain adequate blood pressure. the patient's chest tubes were removed on postoperative day #2. on the evening of postoperative day #3, while the patient had previously been a-paced for sinus bradycardia, the patient went into atrial fibrillation with rates 150-160 which was controlled with iv and po lopressor. the patient remained hemodynamically stable during this time, and the neo-synephrine had been weaned off. on postoperative day #4, the patient continued to be in atrial fibrillation. the patient was started on amiodarone, and with an initial bolus of 150 mg of iv amiodarone, the patient converted into sinus rhythm. on postoperative day #4, the patient was transferred from the intensive care unit to the floor where he remained stable without any further atrial fibrillation. the patient worked with physical therapy, and by postoperative day #5 was able to complete a level 5 with physical therapy which is ambulating 500' and climbing one flight of stairs while remaining hemodynamically stable and without requiring oxygen. the patient was cleared for discharge to home. condition on discharge: t-max 99, pulse 76, in sinus rhythm, blood pressure 99/53, respiratory rate 16, oxygen saturation 94% on room air. the patient is awake, alert, oriented x 3. neurologically nonfocal. heart is regular rate and rhythm without rub or murmur. lungs are clear bilaterally without wheezes, rhonchi or rales. abdomen is soft, nontender, nondistended, positive bowel sounds. the patient is tolerating a regular diet. extremities are warm, well-perfused, trace to 1+ pitting edema. sternal incision is intact with staples. there is no erythema or drainage. the sternum is stable. the right lower extremity vein harvest site is intact with steri-strips. there is no erythema or drainage. laboratory data: white blood cell count 8.3, hematocrit 26.7, platelet count 235, sodium 133, potassium 4.2, chloride 98, bicarb 28, bun 15, creatinine 1.1, glucose 111. discharge medications: 1. colace 100 mg po bid. 2. lasix 20 mg po bid x 7 days. 3. potassium chloride 20 meq po bid x 7 days. 4. enteric-coated aspirin 325 mg po qd. 5. percocet 5/325, po q 4-6 h prn. 6. lopressor 25 mg po bid. 7. amiodarone 400 mg po qd. 8. protonix 40 mg po qd. 9. simvastatin 20 mg po qd. 10.plavix 75 mg po qd. discharge diagnoses: 1. coronary artery disease. 2. status post coronary artery bypass graft in . 3. status post redo coronary artery bypass graft x 3. 4. postoperative atrial fibrillation. 5. hypertension. 6. hypercholesterolemia. the patient is to be discharged to home with visiting nurse to monitor his heart rate and rhythm. the patient is in stable condition. the patient is to follow-up with dr. in weeks. the patient is to follow-up with dr. in weeks. the patient is to follow-up with dr. in weeks. the patient is to return to far-2 in 2 weeks for staple removal. , m.d. dictated by: medquist36 procedure: extracorporeal circulation auxiliary to open heart surgery coronary arteriography using two catheters (aorto)coronary bypass of two coronary arteries left heart cardiac catheterization diagnostic ultrasound of heart diagnoses: esophageal reflux intermediate coronary syndrome pure hypercholesterolemia unspecified essential hypertension coronary atherosclerosis of autologous vein bypass graft cardiac complications, not elsewhere classified atrial fibrillation other complications due to other cardiac device, implant, and graft 

Answer: The patient is high likely exposed to