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: sulfa (sulfonamide antibiotics) / vancomycin attending: chief complaint: mitral regurgitation major surgical or invasive procedure: mitral valve repair (32mm st. ) history of present illness: this 64 year old white male with no significant history, aside from arthroscopic knee surgery, sought care for several months of progressive dyspnea. he was found to be in atrial fibrillation and underwent evaluation which revealed 4+ mitral regurgitation with torn chordae and clean coronaries. he was transferred to for definitive care. past medical history: lt knee arthroscopy t&a as child social history: retired commercial pilot rare etoh use remote pipe smoker family history: noncontributory physical exam: admission: awake, alert, nad neuro: intact lungs: clear cro: af 106, gr 3/6 sem at apex ext: no cce pertinent results: 06:10am blood wbc-11.9* rbc-2.98* hgb-9.6* hct-26.9* mcv-90 mch-32.1* mchc-35.6* rdw-13.9 plt ct-113* 06:10am blood pt-17.8* inr(pt)-1.6* 07:10am blood pt-16.2* inr(pt)-1.4* 03:09am blood pt-18.4* ptt-36.5* inr(pt)-1.7* 11:58am blood pt-16.7* ptt-35.6* inr(pt)-1.5* 06:10am blood glucose-108* urean-12 creat-1.0 na-134 k-4.3 cl-96 hco3-31 angap-11 echocardiography report , tte (complete) done at 4:01:39 pm final referring physician information , r. , division of cardiothorac , status: inpatient dob: age (years): 64 m hgt (in): 71 bp (mm hg): 127/78 wgt (lb): 212 hr (bpm): 111 bsa (m2): 2.16 m2 indication: preoperative assessment. icd-9 codes: 427.89, 424.0, 424.2 test information date/time: at 16:01 interpret md: , md test type: tte (complete) 3d imaging. son: , rdcs doppler: full doppler and color doppler test location: west echo lab contrast: none tech quality: adequate tape #: 2009w006-0:51 machine: vivid echocardiographic measurements results measurements normal range left atrium - long axis dimension: *6.3 cm <= 4.0 cm left atrium - four chamber length: *7.0 cm <= 5.2 cm right atrium - four chamber length: *6.4 cm <= 5.0 cm left ventricle - septal wall thickness: *1.3 cm 0.6 - 1.1 cm left ventricle - inferolateral thickness: *1.2 cm 0.6 - 1.1 cm left ventricle - diastolic dimension: *6.0 cm <= 5.6 cm left ventricle - systolic dimension: 3.7 cm left ventricle - fractional shortening: 0.38 >= 0.29 left ventricle - ejection fraction: 60% to 65% >= 55% left ventricle - lateral peak e': 0.17 m/s > 0.08 m/s left ventricle - septal peak e': 0.10 m/s > 0.08 m/s left ventricle - ratio e/e': 13 < 15 aorta - sinus level: 3.3 cm <= 3.6 cm aorta - ascending: 3.4 cm <= 3.4 cm aorta - arch: *3.1 cm <= 3.0 cm aortic valve - peak velocity: 1.5 m/sec <= 2.0 m/sec mitral valve - e wave: 1.8 m/sec mitral valve - a wave: 0.0 m/sec mitral valve - e wave deceleration time: 157 ms 140-250 ms tr gradient (+ ra = pasp): *56 mm hg <= 25 mm hg findings multiplanar reconstructions were generated and confirmed on an independent workstation. left atrium: marked la enlargement. right atrium/interatrial septum: moderately dilated ra. no asd by 2d or color doppler. left ventricle: mild symmetric lvh with normal cavity size and regional/global systolic function (lvef>55%). no resting lvot gradient. no vsd. right ventricle: normal rv chamber size and free wall motion. aorta: normal aortic diameter at the sinus level. normal ascending aorta diameter. mildly dilated aortic arch. no 2d or doppler evidence of distal arch coarctation. aortic valve: mildly thickened aortic valve leaflets (3). no as. no ar. mitral valve: mildly thickened mitral valve leaflets. moderate/severe mvp. moderate thickening of mitral valve chordae. torn mitral chordae. no ms. moderate to severe (3+) mr. tricuspid valve: mildly thickened tricuspid valve leaflets. mild tr. moderate pa systolic hypertension. pulmonic valve/pulmonary artery: no ps. pericardium: no pericardial effusion. conclusions the left atrium is markedly dilated. the right atrium is moderately dilated. no atrial septal defect is seen by 2d or color doppler. there is mild symmetric left ventricular hypertrophy with normal cavity size and regional/global systolic function (lvef>55%). there is no ventricular septal defect. right ventricular chamber size and free wall motion are normal. the aortic arch is mildly dilated. the aortic valve leaflets (3) are mildly thickened but aortic stenosis is not present. no aortic regurgitation is seen. the mitral valve leaflets are mildly thickened. there is moderate/severe mitral valve prolapse (predominantly the posterior leaflet). there is moderate thickening of the mitral valve chordae. torn mitral chordae are present with prolapse through the mitral valve in systole. moderate to severe (3+) mitral regurgitation is seen. the tricuspid valve leaflets are mildly thickened. there is moderate pulmonary artery systolic hypertension. there is no pericardial effusion. impression: mitral valve prolapse with moderate to severe mitral regurgitation. preserved biventricular systolic function. moderate pulmonary hypertension. electronically signed by , md, interpreting physician 16:28 brief hospital course: he was transferred to the cvicu in stable condition and heparin was begun for atrial fibrillation. dental clearance was obtained and mitral valve repair and annuloplasty with a 32mm st. saddle ring was performed on . see operative note for details. attempts at dccv prebypass resulted in vf and the institution of urgent bypass. amiodarone was administered postoperatively. a maze procedure was not undertaken due to the dilated atrium. his lvef was 25-30% after surgery by tee. he weaned from bypass on epinephrine, neosynephrine ansd propofol. he transferred back to the cvicu where milrinone was begun due to low ci with elevated svr despite adequate volume resuscitation. his index rose, epinephrine was stopped and he remained stable. he was weaned from the ventilator and extubated easily. the milrinone and neosynephrine were weaned and beta blockde was resumed with good ventricular rate control. diuretics were administered and coumadin resumed. following transfer to the floor he was ambulated, pt worked with him for strength and mobility and medications were titrated for maximum bebefit. he was discharged home having been instructed to medications, restrictions and followup care. arrangements were made for dr. to follow and manage his coumadin. medications on admission: lopressor 50mg asa 325mg/d discharge medications: 1. metoprolol tartrate 25 mg tablet sig: 0.5 tablet po bid (2 times a day). disp:*30 tablet(s)* refills:*2* 2. influen tr-split vac (pf) 45 mcg/0.5 ml syringe sig: one (1) ml intramuscular asdir (as directed). 3. ranitidine hcl 150 mg tablet sig: one (1) tablet po bid (2 times a day). disp:*60 tablet(s)* refills:*2* 4. aspirin 81 mg tablet, delayed release (e.c.) sig: one (1) tablet, delayed release (e.c.) po daily (daily). tablet, delayed release (e.c.)(s) 5. furosemide 40 mg tablet sig: one (1) tablet po once a day for 7 days. disp:*7 tablet(s)* refills:*0* 6. potassium chloride 20 meq tab sust.rel. particle/crystal sig: one (1) tab sust.rel. particle/crystal po once a day for 7 days. disp:*7 tab sust.rel. particle/crystal(s)* refills:*0* 7. warfarin 2.5 mg tablet sig: as ordered tablet po once a day: inr 2.5-3. disp:*100 tablet(s)* refills:*2* 8. amiodarone 200 mg tablet sig: two (2) tablet po bid (2 times a day): 2 tablets twice daily for 10 days then 1 tablet twice daily. disp:*120 tablet(s)* refills:*2* 9. hydromorphone 2 mg tablet sig: 1-2 tablets po every 4-6 hours as needed for 2 weeks. disp:*50 tablet(s)* refills:*0* 10. acetaminophen 325 mg tablet sig: two (2) tablet po q4h (every 4 hours) as needed. 11. outpatient lab work please check inr on and results called to dr. discharge disposition: home with service facility: vna discharge diagnosis: mitral regurgitation chronic atrial fibrillation discharge condition: good discharge instructions: shower daily, no baths or swimming no lotions, creams or powders to incisions no driving for 4 weeks and off all narcotics no lifting more than 10 pounds for 10 weeks report any redness of, or drainage from incisions report any fever greater than 100.5 report any weight gain greater than 2 pounds a day or 5 pounds a week take all medications as directed call the office if you have any questions or concerns dr. will follow your inr and coumadin dosing. followup instructions: dr. in 4 weeks (call heart center ) dr. (cardiology) in weeks () dr. (primary care) in 2 weeks please call to scedule appointments procedure: extracorporeal circulation auxiliary to open heart surgery open heart valvuloplasty of mitral valve without replacement operations on chordae tendineae diagnoses: mitral valve disorders congestive heart failure, unspecified atrial fibrillation atrial flutter long-term (current) use of anticoagulants rupture of chordae tendineae 

Answer: The patient is high likely exposed to