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 67-year-old male has a known history of coronary artery disease. he is status post left anterior descending artery percutaneous transluminal coronary angioplasty and subsequent repeat ptca and atherectomy in for exertional angina. since then he has been essentially asymptomatic though his level of activity has been slightly decreased secondary to low back pain. a routine cardiac evaluation in revealed exercise induced ischemia and he underwent cardiac catheterization on at which revealed a tight distal left main stenosis involving the ostium of the lad and the circumflex. he had no significant right coronary artery disease. he had preserved left ventricular function and he was admitted for a coronary artery bypass graft. past medical history: significant for history of coronary artery disease status post left anterior descending artery percutaneous transluminal coronary angioplasty and atherectomy, status post appendectomy, tonsillectomy, history of calf claudication and rest pain at night. allergies: he has no known allergies. medications on admission: aspirin 325 mg p.o. q. day and lipitor. social history: he does not smoke cigarettes. he drinks alcohol occasionally. lives at home with his wife. review of systems: as above. physical examination: he is well-developed, well-nourished white male in no apparent distress. vital signs stable, afebrile. heent examination: normocephalic, atraumatic. extraocular movements intact. oropharynx benign. neck was supple. full range of motion. no lymphadenopathy or thyromegaly. carotids 2+ and equal bilaterally without bruits. lungs were clear to auscultation and percussion. cardiovascular examination: regular rate and rhythm, normal s1, s2 with no murmurs, rubs or gallops. the abdomen was soft and non-tender with positive bowel sounds. no masses or hepatosplenomegaly. extremities were without clubbing, cyanosis or edema. neuro examination was nonfocal. hospital course: on he underwent an off-cab times three with left internal mammary artery to the left anterior descending artery, reverse saphenous vein graft to om-2 and diagonal one. he was transferred to the csiu in stable condition. he had a stable postoperative night. he was extubated. on postoperative day one he was transferred to the floor in stable condition. on postoperative day three he had his chest tubes discontinued. he also had some nausea and vomiting, was not obstructed and this eventually resolved. he also ___________ to rapid atrial fibrillation which converted easily on beta blockers and amiodarone. on postoperative day five he was discharged to home in stable condition and had his echocardial pacing discontinued. labs on discharge: white count 11,300, hematocrit 30.1, platelet count 299,000. sodium 143, potassium 4.1, chloride 106, co2 30, bun 17, creatinine 1.0, blood sugar 100. medications on discharge: lasix 20 mg p.o. b.i.d. times ten days, kcl 20 meq p.o. b.i.d. times ten days, colace 100 mg p.o. b.i.d., ecotrin 325 mg p.o. q. day, plavix 75 mg p.o. q. day, amiodarone 400 mg p.o. b.i.d. times one week and then 400 mg p.o. q. day times one week and then 200 mg p.o. q. day times two weeks, percocet one to two p.o. q. 4-6h. p.r.n. pain, lipitor 40 mg p.o. q. day, lopressor 50 mg p.o. b.i.d. follow up: he will be seen by dr. in one to two weeks and dr. in four weeks. , m.d. dictated by: medquist36 procedure: single internal mammary-coronary artery bypass (aorto)coronary bypass of two coronary arteries monitoring of cardiac output by other technique diagnoses: coronary atherosclerosis of native coronary artery cardiac complications, not elsewhere classified atrial fibrillation peripheral vascular disease, unspecified percutaneous transluminal coronary angioplasty status paralytic ileus 

Answer: The patient is high likely exposed to