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 an 81 year old gentleman who reports having chest discomfort for the past four years with recent increase in frequency. he had a stress test, which was positive and he was referred to for cardiac catheterization and subsequently a coronary artery bypass grafting. past medical history: hypertension. demyelinating polyneuropathy. sciatica. decreased vision in his left eye due to retinal problems. status post hernia repair. allergies: inderal which causes claustrophobia and asthma. preoperative medications: 1. verapamil 240 mg p.o. q a.m. and 120 mg p.o. q p.m. 2. hydrochlorothiazide 25 mg p.o. q. day. 3. trileptal 300 mg p.o. twice a day. 4. ditropan xl 10 mg p.o. q. day. 5. lisinopril 10 mg p.o. twice a day. 6. aspirin 162 mg p.o. twice a day. hospital course: the patient was admitted to on for a cardiac catheterization. cardiac catheterization showed an ejection fraction of 65 percent. a 70 to 90 percent left anterior descending lesion; 90 percent first diagonal lesion; 50 percent obtuse marginal one lesion and 80 percent right coronary artery lesion. the patient was referred to dr. for coronary artery bypass grafting. the patient's cardiac catheterization was on . the patient was discharged to home after his cardiac catheterization and was readmitted on for his surgery. he was taken to the operating room for coronary artery bypass grafting times four; left internal mammary artery to left anterior descending; saphenous vein graft to first diagonal; saphenous vein graft to second diagonal and saphenous vein graft to right coronary artery. total cardiopulmonary bypass time was 87 minutes. cross clamp time was 69 minutes. the patient was transferred to the intensive care unit in stable condition on neo-synephrine and propofol. the patient initially had moderate amount of tube drainage and was treated with packed red blood cells. he was weaned and extubated from mechanical ventilation on his first postoperative evening. on postoperative day number one, the patient intermittently required some neo-synephrine. he remained in the intensive care unit for some pulmonary toilette as well as some hypotension. by the evening of postoperative day number one, the patient had been started on lopressor and became hypertensive. the patient was started on neo-synephrine. the patient had some intermittent wheezing and congestive cough and required some pulmonary toilette and some nebulizer treatment. on postoperative day number two, the patient's chest tubes and pacing wires and foley catheter were removed without incident. on postoperative day number three, the patient was transferred from the intensive care unit to the regular part of the hospital, where he began working with physical therapy. it was determined that the patient would benefit from a stay at short term rehabilitation. over the next couple of days, the patient continued on diuretics and beta blockers. by postoperative day number five, the patient was cleared for discharge to rehabilitation. condition on discharge: temperature 98.2; blood pressure 100/60; pulse 80 and regular. oxygen saturation 95 percent on room air. the patient's weight was 100.3 kg; preoperatively, the patient weighed 94.8 kg. neurologically, the patient was awake, alert, grossly intact, oriented times three. respiratory: breath sounds were decreased at bilateral bases. heart is regular rate and rhythm. abdomen is soft, nontender, nondistended. extremities: warm and well perfused. the patient has 1 plus pedal edema bilaterally. sternal and leg incisions are clean, dry and intact without any erythema or drainage. discharge medications: 1. lasix 20 mg p.o. twice a day times seven days. 2. potassium chloride 20 meq p.o. twice a day times seven days. 3. colace 100 mg p.o. twice a day. 4. zantac 150 mg p.o. twice a day. 5. trileptal 300 mg p.o. twice a day. 6. detrol xl 5 mg p.o. twice a day. 7. lopressor 100 mg p.o. twice a day. discharge diagnoses: coronary artery disease. hypertension. demyelinating polyneuropathy. disposition: the patient is to be discharged to rehabilitation in stable condition. he is to follow up with dr. in one to two weeks. he is to follow-up with dr. in one to two weeks. he is to follow-up with dr. in three to four weeks. , m.d. procedure: (aorto)coronary bypass of three coronary arteries single internal mammary-coronary artery bypass extracorporeal circulation auxiliary to open heart surgery diagnoses: coronary atherosclerosis of native coronary artery unspecified essential hypertension other and unspecified angina pectoris chronic inflammatory demyelinating polyneuritis 

Answer: The patient is high likely exposed to