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: allergies: no known allergies / adverse drug reactions attending: chief complaint: history of aortic stenosis. she has been followed by echo by her pcp. remains asymptomatic major surgical or invasive procedure: 1. aortic valve replacement with a size 21 - magna tissue valve. 2. coronary artery bypass graft x1 saphenous vein graft to ramus artery. 3. endoscopic harvesting of the long saphenous vein. history of present illness: the patient is a 79 year old female with a history of aortic stenosis. she has been followed by echo by her pcp. remains asymptomatic, caring for her grandchildren and carrying grocery bags without limitation. echo reveals severe as with 0.8-1.0 cm2, worsening from 1.2cm2 in . she is referred for surgical evaluation past medical history: hypertension hypercholesterolemia diabetes mellitus -type ii mild ble varicosities tubal ligation r cataract social history: race: last dental exam: none recently lives with: husband occupation: retired housekeeper- chb tobacco: chewed tobacco- quit 10 yrs.ago etoh: none family history: non-contributory, parents died of "old age" physical exam: pulse: 64 resp: o2 sat: b/p right: 178/85 left: 178/81 height: weight: general: skin: dry intact heent: perrla eomi anicteric sclera;op with dentures ( has some prosthetic teeth missing from plate) neck: supple full rom chest: lungs clear bilaterally heart: rrr irregular murmur : 3/6 sem- radiates to carotids abdomen: soft non-distended non-tender bowel sounds + ; no hsm extremities: warm , well-perfused edema trace edema b/l ; lealed lac. anterior rle varicosities: none small/minor varicosities bles neuro: grossly intact x; mae 5.5 strengths; nonfocal exam pulses: femoral right: 2+ left: 1+ dp right: 1+ left: 1+ pt : 1+ left: 1+ radial right: 2+ left: 2+ carotid bruit right: left: radiation of cardiac murmur to carotids pertinent results: 09:42am blood wbc-8.0 rbc-2.95* hgb-9.1* hct-26.9* mcv-91 mch-30.9 mchc-33.8 rdw-14.4 plt ct-168 10:17am blood wbc-8.7 rbc-2.60*# hgb-8.2*# hct-23.0*# mcv-89 mch-31.6 mchc-35.7* rdw-12.4 plt ct-112* 09:42am blood plt ct-168 09:42am blood pt-12.1 inr(pt)-1.0 10:17am blood plt ct-112* 10:17am blood pt-14.6* ptt-36.0* inr(pt)-1.2* 10:17am blood fibrino-144* 09:42am blood glucose-154* urean-17 creat-0.7 na-138 k-4.0 cl-99 hco3-32 angap-11 11:37am blood urean-9 creat-0.6 na-141 k-3.7 cl-109* hco3-25 angap-11 09:42am blood mg-2.2 09:00am blood heparin dependent antibodies- negative echocardiogram findings right atrium/interatrial septum: no asd by 2d or color doppler. left ventricle: mild symmetric lvh. normal lv cavity size. normal regional lv systolic function. overall normal lvef (>55%). right ventricle: normal rv chamber size and free wall motion. aorta: mildly dilated descending aorta. simple atheroma in descending aorta. aortic valve: severely thickened/deformed aortic valve leaflets. severe as (area 0.8-1.0cm2). trace ar. mitral valve: mildly thickened mitral valve leaflets. mild (1+) mr. tricuspid valve: normal tricuspid valve leaflets. mild tr. pulmonic valve/pulmonary artery: normal pulmonic valve leaflets. physiologic (normal) pr. general comments: a tee was performed in the location listed above. i certify i was present in compliance with hcfa regulations. the patient was under general anesthesia throughout the procedure. no tee related complications. regional left ventricular wall motion: conclusions prebypass no atrial septal defect is seen by 2d or color doppler. there is mild symmetric left ventricular hypertrophy. the left ventricular cavity size is normal. regional left ventricular wall motion is normal. overall left ventricular systolic function is normal (lvef>55%). right ventricular chamber size and free wall motion are normal. the descending thoracic aorta is mildly dilated. there are simple atheroma in the descending thoracic aorta. the aortic valve leaflets are severely thickened/deformed. there is severe aortic valve stenosis (valve area 0.8-1.0cm2). trace aortic regurgitation is seen. the mitral valve leaflets are mildly thickened. mild (1+) mitral regurgitation is seen. postbypass biventricular systolic function is preserved. there a well seated, well functioning bioprosthesis in the aortic position. no ai is visualized. the mr is now trace. the remaining study is unchanged from prebypass. brief hospital course: admitted same day surgery and was taken to the operating room for aortic valve replacement and coronary artery bypass graft surgery. see operative report for further details. she received cefazolin for perioperative antibiotics. postoperatively she was transferred to the intensive care unit for post operative management. in first twenty four hours she was weaned from sedation, awoke neurologically intact and was extubated without complications. she went into atrial fibrillation that was treated with betablockers and amiodarone. she has been in sinus rhythm for greater than 24 hours prior to discharge. coumadin was started for anticoagulation with goal inr 2-2.5 for atrial fibrillation. physical therapy worked with her on strength and mobility. she was ready for discharge to rehab on post operative day 5 to rehab at healthcare center at . medications on admission: glyburide 2.5mg daily hctz 25 mg daily lisinopril 40 mg daily ranitidine 150 simvastatin 40 mg daily asa 81 mg daily mvi daily zetia 10 mg daily discharge disposition: extended care facility: healthcare center at discharge diagnosis: aortic stenosis-s/p avr coronary artery disease-s/p cabg post-operative atrial fibrillation-now sinus rhythm pmh: hypertension, hypercholesterolemia, diabetes mellitus -type ii mild ble varicosities psh:tubal ligation, right cataract excision discharge condition: alert and oriented x3 nonfocal ambulating with assistance incisional pain managed with percocet incisions: sternal - healing well, no erythema or drainage leg edema- none discharge instructions: please shower daily including washing incisions gently with mild soap, no baths or swimming until cleared by surgeon. look at your incisions daily for redness or drainage please no lotions, cream, powder, or ointments to incisions each morning you should weigh yourself and then in the evening take your temperature, these should be written down on the chart no driving for approximately one month and while taking narcotics, will be discussed at follow up appointment with surgeon when you will be able to drive no lifting more than 10 pounds for 10 weeks please call with any questions or concerns females: please wear bra to reduce pulling on incision, avoid rubbing on lower edge **please call cardiac surgery office with any questions or concerns . answering service will contact on call person during off hours** labs: pt/inr for coumadin ?????? indication atrial fibrillation goal inr 2.0-2.5 first draw to be dosed by rehab physician followup instructions: you are scheduled for the following appointments surgeon: dr on at 1:30pm cardiologist:none primary care dr. on at 10:30am **please call cardiac surgery office with any questions or concerns . answering service will contact on call person during off hours** labs: pt/inr for coumadin ?????? indication atrial fibrillation goal inr 2.0-2.5 first draw to be dosed by rehab physician please check pt/inr monday and wednesday and friday for 2 weeks and prn and then may decrease to twice a week please arrange coumadin follow prior to discharge from rehab md procedure: extracorporeal circulation auxiliary to open heart surgery (aorto)coronary bypass of one coronary artery open and other replacement of aortic valve with tissue graft diagnoses: coronary atherosclerosis of native coronary artery pure hypercholesterolemia unspecified essential hypertension diabetes mellitus without mention of complication, type ii or unspecified type, not stated as uncontrolled cardiac complications, not elsewhere classified atrial fibrillation aortic valve disorders personal history of tobacco use 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 asymptomatic varicose veins tubal ligation status 

Answer: The patient is high likely exposed to