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 74-year-old female who has a known history of aortic stenosis and mitral regurgitation, as well as hypercholesterolemia and hypothyroidism who is admitted with a syncopal episode. the patient syncopized at the dentist and was found to have a heart rate in the 200s and a blood pressure of 80. she was transferred to the , where she had a regular supraventricular tachycardia at approximately 180 beats per minute, which broke briefly with vagal maneuvers, and then recurred. she was given adenosine and lopressor without effect and then spontaneously converted to normal sinus rhythm, had a stable pulse and blood pressure. during these episodes she denied chest pain, shortness of breath, abdominal pain, nausea, vomiting, diarrhea, bright red blood per rectum, melena or dysuria. past medical history: 1. mitral stenosis and mitral regurgitation. 2. aortic stenosis. 3. hypercholesterolemia. 4. hypothyroidism on replacement. 5. macular degeneration. allergies: none. medications on admission: 1. synthroid 0.088 mg po q.d. 2. lipitor 10 mg po q.d. social history: the patient lives with her husband in . no tobacco history, no alcohol history. physical examination: temperature 95.0. blood pressure 110/70. pulse 70. respirations 20. oxygen saturation 96% on room air. in general, this is an elderly woman in no acute distress. her head, eyes, ears, nose and throat are unremarkable. her neck shows no elevation and jugular venous pulsation. her lungs have crackles a third of the way up at the bases bilaterally. her heart is regular with a normal s1, s2. a 3/6 systolic crescendo-decrescendo murmur is heard at the right upper sternal border. a holosystolic murmur is audible at the apex with a diastolic component. her abdomen has normal bowel sounds, is soft, nontender, nondistended. no masses are palpable. her extremities reveal no cyanosis, clubbing or edema. neurologically, she is alert and oriented times three. her cranial nerves are grossly intact. her strength is in the upper and lower extremities. her sensation is intact. laboratory data: admission laboratories are significant for a white blood cell count of 9.1 (differential: 75% polys, 17% lymphocytes). potassium 4.1, bun 20, creatinine 1.0. chest x-ray showed congestive heart failure, no consolidations and no effusions. electrocardiogram: regular supraventricular tachycardia with right axis deviation, diffuse st depressions. hospital course: this is a 74-year-old woman with known aortic stenosis and mitral regurgitation and mitral stenosis who presented with syncope in the setting of a supraventricular tachycardia and hypotension. 1. cardiovascular: the patient was initially evaluated for a myocardial infarction. she had an enzyme leak with a peak troponin of 16.3, and a peak ck of 145 with an mb of 16 for an index of 11%. she therefore was taken to the coronary catheterization laboratory where she was found to have clean coronary arteries. however, the patient was found to have severe mitral regurgitation and moderate aortic stenosis (aortic valve gradient 10 mmhg, aortic valve area 0.9 square cm, mitral valve gradient 19 mmhg, mitral valve area not calculated). during the catheterization, hemodynamic testing revealed improved cardiac output with dobutamine. the patient was transferred to the cardiac intensive care unit on dobutamine and nitroglycerin. these medications were quickly weaned off as the dobutamine was found to put the patient back into supraventricular tachycardia. once she was weaned off these medications, she was transferred again to the floor. the patient was evaluated by the cardiac surgery team. it was felt that double valve replacement surgery on this frail 74-year-old woman would present an intraoperative mortality risk of up to 30% given the extensive aortic calcification seen during the cardiac catheterization. it was therefore recommended that the patient be managed medically and that surgery be reserved only as a last ditch effort if medical management should fail. the patient was started on amiodarone, lopressor, and an ace inhibitor. she was taken for an electrophysiology study in an attempt to possibly ablate a arrhythmia focus. on further consideration, as the patient was known to not tolerate her supraventricular tachycardia, it was felt that a better approach would be to insert a pacemaker and then ablate the patient's av node, thereby, ablating any possible tachycardic foci. the pacemaker was inserted, however, the procedure was complicated by hemopericardium, secondary to a right ventricular leak. the patient was transferred back to the coronary care unit, where she was found to have tamponade physiology. a pericardial drain was placed. the following day, the pericardial drain was withdrawn after a repeat echocardiogram showed no re-accumulation of the hemopericardium. on the following day, another repeat echocardiogram was also clear. after further consultation with the electrophysiology team, it was decided that the patient would be discharged home on medical management to follow-up in the electrophysiology device clinic and av nodule ablation would be considered at a later time. the patient was also started on oral lasix q.d. for a gentle diuresis. she is to follow-up in the electrophysiology clinic the week after discharge. the patient was discharged home on of heart's monitor to monitor her qt interval during the amiodarone load. the results of this monitor will be interpreted by her electrophysiologist, dr. . 2. infectious disease: the patient was noted to have an elevated white blood cell count and hypothermia during her admission. she also had diarrhea. the diarrhea was negative for c. difficile. the white blood cell count normalized on its own. there is no consolidation on chest x-ray and the patient had no clinical symptoms of infection. urinalysis and culture were also negative. 3. endocrine: the patient's hypothyroidism was maintained on her usual dose of synthroid. her tsh and t4 were within normal limits. 4. communication: the patient lives at home with her husband, who is demented, however, friends of the family are extremely involved in the patient's care. the can be reached at area code , or area code . 5. code status: full. condition of discharge: the patient is discharged in stable condition. follow-up: she is to follow-up in the electrophysiology clinic next week with dr. . av nodule ablation will be considered at a later date. discharge diagnoses: 1. syncope. 2. supraventricular tachycardia. 3. mitral regurgitation. 4. aortic stenosis. 5. status post pacer placement. discharge medications: 1. lasix 20 mg po q.d. 2. amiodarone 400 mg po q.d. 3. lisinopril 10 mg po q.d. 4. synthroid 0.088 mg po q.d. 5. atenolol 12.5 mg po q.d. , m.d. dictated by: medquist36 procedure: combined right and left heart cardiac catheterization coronary arteriography using two catheters angiocardiography of left heart structures pericardiocentesis catheter based invasive electrophysiologic testing initial insertion of dual-chamber device initial insertion of transvenous leads [electrodes] into atrium and ventricle diagnoses: anemia, unspecified unspecified acquired hypothyroidism atrial fibrillation accidental puncture or laceration during a procedure, not elsewhere classified rheumatic heart failure (congestive) other specified cardiac dysrhythmias mitral valve insufficiency and aortic valve stenosis syncope and collapse hemopericardium 

Answer: The patient is high likely exposed to