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 -year-old patient with known aortic stenosis with increasing dyspnea on exertion referred to dr. for replacement of her aortic valve. past medical history: 1. hypertension. 2. hypercholesterolemia. 3. remote tobacco. 4. known aortic stenosis. 5. status post hysterectomy. 6. history of arm surgery. 7. plate in left hip. allergies: no known drug allergies. preoperative medications: 1. ibuprofen 200 mg po tid. 2. effexor xl 75 mg po bid. 3. ecotrin 325 mg po 4x a week. 4. lasix 30 mg po five days a week. 5. lasix 40 mg wednesday and sunday. 6. digoxin 0.125 mg po q day. 7. lipitor 20 mg po q day. 8. vitamin e. 9. ......... 325 mg q day. 10. toprol xl 25 mg q day. preoperative laboratory data: white blood cell count 8.5, hematocrit 43, platelet count 256. sodium 141, potassium 4.3, chloride 99, bicarb 33, bun 24, creatinine 1.2. patient was admitted to on for cardiac catheterization. cardiac catheterization showed a normal ejection fraction, 80% left main disease, 90% ostial rca disease, aortic valve area is 0.6 cm squared with a peak gradient of 60. it was decided that the patient would be appropriate for cardiac surgery. cardiac surgery consult was obtained. pulmonary medicine consult was obtained due to patient's history of dyspnea on exertion to evaluate for patient's operative risks. pulmonary function tests showed mild restrictive disease and the pulmonary consult felt that there was no contraindication for surgery. the patient was taken to the operating room on with dr. for an avr and cabg x3. the aortic valve was replaced with a 21 mm pericardial - valve; cabg x3: saphenous vein graft to left anterior descending artery, saphenous vein graft to om, and saphenous vein graft to right coronary artery. please see operative note for further details. the patient was transferred to the intensive care unit in stable condition on neo-synephrine infusion for maintaining blood pressure. patient initially required significant volume resuscitations, maintained adequate cardiac output, and the patient remained intubated on the first postoperative night. the patient was weaned and extubated for mechanical ventilation on postoperative day one without difficulty. chest tubes were removed on postoperative day #2. on postoperative day #2, the patient was started on amiodarone infusion for pac's for atrial fibrillation prophylaxis. patient began working with physical therapy. patient was kept in the intensive care unit for aggressive pulmonary toilet. on postoperative day #5, patient had a chest x-ray which showed pleural effusion. patient underwent thoracentesis for the right pleural effusion, which drained about 200 cc of serosanguinous fluid with mild improvement in chest x-ray appearance. the patient tolerated the procedure well. on postoperative day #6, patient continued to have episodes of paroxysmal atrial fibrillation. patient was continued on amiodarone and lopressor. patient's pacing wires were removed on postoperative day #6. patient tolerated the procedure well. patient continued to require pulmonary toilet and intermittent aggressive diuresis. with aggressive diuresis, patient developed elevated creatinine. the patient was working with physical therapy. on postoperative day #10, the patient developed rapid atrial fibrillation that required administration of iv lopressor for rate control. the patient continued on the amiodarone. on postoperative day #12, it was decided to obtain an echocardiogram due to patient's continued volume overload, atrial fibrillation, and rising creatinine. the echocardiogram showed an ejection fraction of 60% and mild left ventricular hypertrophy, 1+ mitral regurgitation, and + tricuspid regurgitation. trivial pericardia effusion, no wall motion abnormality. it was decided that with patient's continued paroxysmal atrial fibrillation, patient should be anticoagulated. this was discussed with dr. and dr. , and the risks and benefits of anticoagulation were discussed amongst the team, and it was decided the patient would benefit with a goal inr of 2. the patient was started on heparin infusion. amiodarone was continued, and patient was given coumadin. on postoperative day #14, , patient had been prepared for discharge to rehabilitation, however, the patient again developed an episode of rapid atrial fibrillation, which required administration of iv lopressor and subsequently converted to sinus rhythm. the patient continued on heparin infusion, remained hemodynamically stable. patient is to be discharged to rehabilitation facility in stable condition. condition on discharge: pulse 90 sinus rhythm, blood pressure 110/58, on room air oxygen saturation 95%. patient is awake, alert, and oriented times three. cardiovascular: regular, rate, and rhythm, no rub and no murmur. extremities are warm and well perfused. lower extremities with 1+ pitting edema. lungs are clear to auscultation bilaterally, decreased at the posterior bases. abdomen is soft, nontender, nondistended. patient was tolerating a regular diet, having bowel movements. the sternal incision is clean, dry, and intact. there is no erythema or drainage. the lower extremity vein harvest site is clean and dry with no erythema or drainage. discharge medications: 1. colace 100 mg po bid. 2. effexor 75 mg po bid. 3. lipitor 20 mg po q day. 4. amiodarone 400 mg po q day. 5. protonix 40 mg po q day. 6. lopressor 25 mg po tid. 7. lasix 20 mg po q day. 8. potassium chloride 20 meq po q day. 9. aspirin 162 mg po q day. 10. coumadin 2 mg on . inr should be checked on for titration of inr of goal of 2.0. remainder of this discharge summary will be dictated upon patient's discharge. , m.d. dictated by: medquist36 procedure: (aorto)coronary bypass of three coronary arteries extracorporeal circulation auxiliary to open heart surgery combined right and left heart cardiac catheterization coronary arteriography using two catheters open and other replacement of aortic valve with tissue graft diagnoses: coronary atherosclerosis of native coronary artery unspecified pleural effusion unspecified essential hypertension cardiac complications, not elsewhere classified atrial fibrillation aortic valve disorders surgical operation with anastomosis, bypass, or graft, with natural or artificial tissues used as implant causing abnormal patient reaction, or later complication, without mention of misadventure at time of operation 

Answer: The patient is high likely exposed to