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: ms. is an 82-year-old female with a history of congestive heart failure and moderate to severe symptomatic mitral regurgitation secondary to failed posterior leaflet, now presenting with worsening shortness of breath. her most recent admission to the hospital was in for dyspnea. at the time, the patient was diuresed, and her symptoms improved. at the same time, the patient underwent cardiac catheterization which, on , demonstrated no angiographically significant coronary artery disease. in addition, there was mild inferoapical hypokinesis with an estimated left ventricular ejection fraction of 50%. an echocardiogram performed at the time showed mildly thickened mitral valve leaflets with moderate to severe mitral valve prolapse with partial mitral leaflet flail. severe eccentric anteriorly directed 4+ mitral regurgitation was seen. compared with a prior report, mitral regurgitation appeared more severe. the patient consequently presented to the cardiac surgeon for a possible surgical solution. past medical history: 1. mitral regurgitation (secondary to failed posterior leaflet) 2. congestive heart failure 3. coronary artery disease 4. possible myocardial infarction in 5. mild pulmonary hypertension past surgical history: 1. status post cholecystectomy 2. appendectomy medications: 1. aspirin 81 mg by mouth once daily 2. accupril 5 mg by mouth once daily allergies: no known drug allergies. family history: history of parkinson's disease in the family. physical examination: afebrile, heart rate 67, blood pressure 132/68, respiratory rate 20. general: elderly female, in no apparent distress. skin within normal limits. head, eyes, ears, nose and throat: upper and lower dentures present, no jugular venous distention, no bruits. neck: full range of motion. chest: clear to auscultation bilaterally. cardiac examination: regular rate and rhythm, iv/vi systolic ejection murmur at the left sternal border. abdomen: bowel sounds present, soft, nontender, nondistended. extremities: mild edema, pulses present bilaterally in upper and lower extremities. varicosities: none. neurologically grossly intact. laboratory data: hematocrit 35.3, white blood cell count 5.3, platelets 437. inr 1.2, ptt 29. glucose 82, bun 16, creatinine 0.9, sodium 134, potassium 4.0. alt 13, ast 22, alkaline phosphatase 49, total bilirubin 0.5. electrocardiogram: sinus rhythm with occasional ventricular ectopy. hospital course: the patient was admitted to the cardiac surgery service. given worsening symptomatic mitral regurgitation, the decision was made to provide a surgical solution. on , the patient underwent mitral valve repair with 26 mm ring annuloplasty. the patient tolerated the procedure well. there were no complications. postoperative ejection fraction was estimated at 30 to 35%. please see the full operative report for details. the patient was then transferred to the intensive care unit in stable condition. she remained intubated. she was extubated on postoperative day one, which she tolerated well. the patient was weaned off of inotropic support. aggressive pulmonary toilet was initiated. the patient was maintained on the amiodarone drip. she was making adequate urine. she was diuresed appropriately. the patient continued to do well. her chest tubes and foley catheter were removed on postoperative day two. the patient remained afebrile, with a stable hematocrit. however, she was transfused with one unit of red blood cells on postoperative day three for a hematocrit of 23.1. the patient also experienced an episode of rapid atrial fibrillation with heart rate in the 140s. she was treated with lopressor and amiodarone boluses. she converted spontaneously on postoperative day three. physical therapy was consulted, which followed the patient during her hospitalization and recommended a rehabilitation center after discharge. the patient was transferred to the floor on postoperative day four in stable condition. she was continued on intravenous heparin and also coumadin. the central line was removed. her urine grew pansensitive enterococcus. the patient experienced another episode of atrial fibrillation on postoperative day seven. her lopressor was increased, her pacing wires were removed. she converted to sinus rhythm within 24 hours. the patient was discharged to a rehabilitation facility on . condition on discharge: good. discharge disposition: rehabilitation facility. discharge diagnosis: 1. mitral regurgitation status post mitral valve repair 2. atrial fibrillation 3. congestive heart failure 4. coronary artery disease discharge medications: 1. coumadin, dose to be adjusted to the goal inr of 2.0 to 2.5 for atrial fibrillation 2. lopressor 50 mg by mouth twice a day 3. reglan 10 mg by mouth three times a day 4. amiodarone 400 mg by mouth once daily for 30 days 5. aspirin 81 mg by mouth once daily 6. percocet one to two tablets by mouth every four to six hours as needed for pain 7. colace 100 mg by mouth twice a day as needed for constipation 8. milk of magnesia as needed 9. lasix 20 mg by mouth twice a day for seven days 10. potassium chloride 20 meq by mouth twice a day for seven days discharge instructions: 1. coumadin dose to be adjusted to the inr goal of 2.0 to 2.5. 2. follow up with dr. , her cardiac surgeon, in approximately four weeks. 3. follow up with dr. , cardiology, in two to three weeks. 4. follow up with dr. , her primary care physician, one to two weeks. , m.d. dictated by: medquist36 procedure: extracorporeal circulation auxiliary to open heart surgery diagnostic ultrasound of heart open heart valvuloplasty of mitral valve without replacement diagnoses: coronary atherosclerosis of native coronary artery mitral valve disorders congestive heart failure, unspecified cardiac complications, not elsewhere classified atrial fibrillation rupture of chordae tendineae 

Answer: The patient is high likely exposed to