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 man who was found to have a cecal lesion during colonoscopy for anemia. given the lesion which was consistent with adenocarcinoma of the colon, he was scheduled for a right colectomy by dr. . however, this patient does have a significant coronary artery disease history, so his main issue preoperatively was evaluation and cardiac clearance. his cardiac history is significant for a myocardial infarction in for which he subsequently underwent bypass surgery. he did undergo repeat catheterizations, most recently in with stenting of a single artery. echocardiograms in the past revealed an ejection fraction of 50% with an inferior posterior wall motion abnormality. the patient did have significant dyspnea on exertion preoperatively and is only able to walk up one flight of stairs, sometimes not even able to achieve this. he had a holter monitor examination which revealed ventricular ectopy, nonsustained ventricular tachycardia, episodes of av nodal wenckebach for which he underwent an exercise echocardiogram which demonstrated that the patient could only exercise for two minutes and again had premature ventricular contractions, nonsustained ventricular tachycardia, and sinus bradycardia with wenckebach. given all of this, it was felt that the patient had a sick sinus syndrome and av nodal disease with significant chronotropic incompetence, for which he underwent electrophysiology evaluation for pacemaker placement. however, given the fact that he needed a colon resection in the near future, electrophysiology did not want to place a pacemaker in him prior to the resection because of concerns related to infection with the pacemaker. hence, he was managed medically. past medical history: (his past medical history is significant for the following) 1. coronary artery disease, status post coronary artery bypass graft in (saphenous vein graft to obtuse marginal), status post percutaneous transluminal coronary angioplasty stent. 2. sick sinus syndrome. 3. valvular disease. 4. hypertension. 5. insulin-dependent diabetes mellitus. 6. hyperlipidemia. 7. arthritis. 8. carotid artery stenosis of 80% to 90% bilaterally. 9. angina. medications on discharge: his medications on admission included lopressor 25 mg p.o. b.i.d., lisinopril 70 mg p.o. q.d., imdur 30 mg p.o. q.d., plavix 75 mg p.o. q.d., mevacor, prevacid, aspirin, glyburide, probenecid, and folate. allergies: no known drug allergies. social history: no smoking or alcohol. family history: his family history was noncontributory. physical examination on presentation: on physical examination prior to his procedure, he was healthy-appearing. clear to auscultation. his abdomen revealed no masses, tenderness, hernias, or ascites. hospital course: he was given a fleets preparation kit the day prior to surgery and was admitted to the on for a colectomy. on , the patient underwent a right colectomy for right colon cancer by dr. , assisted by dr. . the findings were a right ascending colon mass. there was 100 cc of estimated blood loss, 1 liter of crystalloid was given intraoperatively. the patient had a swan-ganz catheter placed postoperatively in the postanesthesia care unit and was transferred to the intensive care unit for monitoring given concerns over his cardiac status, as well as the fact that intraoperatively the patient had bradycardia to the 30s. he was also hypertensive requiring a nitroglycerin drip for control of his blood pressure. the patient had a 5-day intensive care unit stay. immediately postoperatively, he was on a nitroglycerin drip for control of his blood pressure. he was transfused while in the intensive care unit to maintain hematocrit in the 30 range. he was also ruled out for acute myocardial infarction. he was maintained n.p.o. until return of bowel function was noted with nasogastric tube decompression of his stomach. he received a cardiology consultation while in the intensive care unit for assistance of evaluation of his cardiac status. cardiology recommendations were for beta blockers and conversion to nitroglycerin paste from nitroglycerin, as well as the addition of aspirin and accupril for control of his blood pressure. recommendations were also to maintain hematocrit above 30 and for implantable cardioverter-defibrillator placement in the future. by postoperative day four he was off of his nitroglycerin. on postoperative day four his nasogastric tube was also removed, and by postoperative day five he was transferred to the floor. on the floor he did very well. he was maintained n.p.o. until return of bowel function. he did begin having flatus by postoperative day seven and was begun on p.o. his diet was advanced which he tolerated very well. his foley was removed, and he was screened for rehabilitation. however, on the night between postoperative days seven and eight, he did slip and fall out of bed while attempting to stand up to urinate. he did not sustain and significant injuries from this. by postoperative day eight, given the fact that he was tolerating a regular diet, hemodynamically stable with good urine output with an abdomen that was soft, with an incision that was clean, dry, and intact without any erythema, edema, or induration, it was felt that he was stable for discharge. discharge diagnoses: 1. adenocarcinoma of the cecum, status post right colectomy. 2. coronary artery disease, status post coronary artery bypass graft and multiple stents. 3. sick sinus syndrome with tachy arrhythmias including nonsustained ventricular tachycardia. 4. carotid artery disease. 5. gastroesophageal reflux disease. 6. diabetes. 7. hypertension. 8. hyperlipidemia. 9. arthritis. discharge diet: he diet on discharge was cardiac diet. medications on discharge: 1. hydralazine 10 mg p.o. q.i.d. 2. colace 100 mg p.o. b.i.d. 3. ambien 5 mg p.o. q.h.s. p.r.n. 4. probenecid 500 mg p.o. b.i.d. 5. heparin 5000 units subcutaneous b.i.d. 6. imdur 30 mg p.o. q.d. 7. accupril 40 mg p.o. q.d. 8. aspirin 81 mg p.o. q.d. 9. sliding-scale insulin. 10. metoprolol 25 mg p.o. b.i.d. 11. protonix 40 mg p.o. q.d. 12. tylenol 650 mg p.o. q.4-6h. p.r.n. discharge instructions: (his discharge instructions included the follow) 1. to follow up with his cardiologist and primary care . to follow up with dr. within one week for removal of his staples. , m.d. dictated by: medquist36 d: 21:58 t: 10:31 job#: procedure: combined right and left heart cardiac catheterization coronary arteriography using two catheters angiocardiography of right heart structures open and other right hemicolectomy diagnoses: coronary atherosclerosis of native coronary artery pure hypercholesterolemia unspecified essential hypertension paroxysmal ventricular tachycardia other and unspecified angina pectoris paralytic ileus malignant neoplasm of cecum sinoatrial node dysfunction 

Answer: The patient is high likely exposed to