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 retired gentleman had known severe calcific aortic stenosis with an aortic valve area of approximately 0.6 cm2 and aortic root dilatation. he was referred to dr. for aortic valve replacement and aortic root replacement. cardiac catheterization took place on prior to admission which showed a heavily calcified aortic valve that could not be crossed with guide wires. the patient also had severe biventricular diastolic function as well as depressed cardiac output. he echocardiogram on showed a calcific aortic stenosis with an aortic valve area of 0.6 cm2 with a peak gradient of 60. the aortic root was measured at 4.8 cm. the patient had a depressed left ventricular function with an ejection fraction of 30%, and pulmonary hypertension, as well as moderate mitral regurgitation. past medical history: 1. bilateral cataract surgeries. 2. status post lumbar disc operation in . 3. nephrolithiasis. 4. sinusitis. 5. aortic stenosis. 6. congestive heart failure. 7. ..................... 8. osteoarthritis. 9. gout. medications on admission: (medications prior to admission included) 1. lasix. 2. potassium. 3. celebrex. 4. nexium. allergies: the patient had no known drug allergies. physical examination on presentation: on physical examination, the patient's blood pressure was 108/72 and heart rate was 72 in sinus rhythm. he had increased jugular venous pulsation. his peripheral pulses were palpable. he had no bruits. his chest was clear. he had an aortic systolic murmur and an apical systolic murmur. his liver was up 1 cm and nontender. no peripheral edema. pertinent laboratory values on presentation: preoperative laboratory results revealed white blood cell count was 4.8 and hematocrit was 45.9. white blood cell count was 4.8 and platelet count was 154,000. sodium was 140, potassium was 4.4, chloride was 105, bicarbonate was 27, blood urea nitrogen was 16, creatinine was 1.3. inr was 1.2. additional preoperative laboratory work revealed alt was 19, ast was 27, alkaline phosphatase was 70, and total bilirubin was 0.6. pertinent radiology/imaging: cardiac catheterization on showed no significant coronary artery obstruction, severe aortic stenosis, pulmonary hypertension, and biventricular diastolic dysfunction. preoperative electrocardiogram revealed a sinus rhythm with atrial ectopy and a long p-r interval, as well as some st-t wave abnormalities in multiple leads, with a question of left ventricular hypertrophy. a preoperative chest x-ray showed a slightly enlarged heart and a small 5-mm lung nodule in the right posterior lung field. there was no other evidence of acute cardiopulmonary disease. ho course: on , the patient underwent aortic valve replacement with a 29-mm - pericardial tissue valve as well as a supracoronary ascending aortic graft with 30-mm weave by dr. . the patient was transferred to the cardiothoracic intensive care unit on a milrinone drip at 0.25 mcg/kg per minute and a levophed drip at 0.05 mcg/kg per minute in stable condition. on postoperative day one, the patient remained on the milrinone drip at 0.25. blood pressure was 120/60, in a sinus rhythm at 80, with a cardiac index of 2.4. the lungs were clear bilaterally. postoperative laboratories revealed white blood cell count was 6, hematocrit was 33, and platelet count was 160,000. sodium was 139, potassium was 4.5, chloride was 108, bicarbonate was 22, blood urea nitrogen was 20, creatinine was 1, and blood glucose was 110. the patient was extubated. milrinone was weaned down to 0.125. the patient started lasix diuresis. later that evening, milrinone was discontinued. chest tube output was significant enough not to pull the chest tubes on postoperative day. on postoperative day two, the patient remained in a sinus rhythm with a stable hematocrit of 31.7. blood urea nitrogen was 23 and creatinine was 1. lopressor was increased. blood pressure was 119/57. his diet was advanced. chest physical therapy began. the lungs were clear. heart was regular in rate and rhythm, and the sternum was stable. on postoperative day three, the patient was continued on lopressor and lasix as well as aspirin, zantac, and colace. the patient was in a sinus rhythm with a stable hematocrit. the examination was benign. the foley catheter was removed. the patient was saturating 96% on 2 liters nasal cannula. the patient was transferred out to the floor on . the patient was seen by physical therapy on the floor. the patient was alert and oriented. the patient was switched over to oral pain medications. on , on postoperative day four, the patient did well overnight. the chest tubes were removed as were pacing wires. the patient was out of bed with physical therapy. discharge planning was begun. the patient remained in a sinus rhythm with a good blood pressure of 120/80 and was saturating 95% on room air. the physical examination was benign. the incisions were healing nicely. the patient continued to work with physical therapy. on postoperative day five, the patient was discharged to home with services with the following discharge diagnoses. discharge diagnoses: 1. status post aortic valve replacement and supracoronary ascending aortic arch graft. 2. aortic stenosis. 3. nephrolithiasis. 4. gout. 5. congestive heart failure. 6. status post bilateral cataract surgeries. 7. status post lumbar disc operation. 8. recent sinusitis. 9. gastroesophageal reflux disease. medications on discharge: (discharge medications were as follows) 1. lopressor 25 mg p.o. twice per day. 2. lasix 20 mg p.o. twice per day (times seven days). 3. potassium chloride 20 meq p.o. twice per day (times seven days). 4. enteric-coated aspirin 325 mg p.o. once per day. 5. percocet one to two tablets p.o. q.4-6h. as needed (for pain). 6. colace 100 mg p.o. twice per day. 7. nexium. 8. celebrex. discharge status: the patient was discharged to home with services on . condition at discharge: the patient was discharged in stable condition. , m.d. dictated by: medquist36 procedure: extracorporeal circulation auxiliary to open heart surgery open and other replacement of aortic valve resection of vessel with replacement, aorta, abdominal diagnoses: esophageal reflux congestive heart failure, unspecified unspecified essential hypertension gout, unspecified aortic valve disorders abdominal aneurysm without mention of rupture 

Answer: The patient is high likely exposed to