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 68 year-old female with new onset of atrial fibrillation who was found to have severe mitral regurgitation and markedly dilated left ventricular. coronary catheterization showed normal coronary arteries and has converted to normal sinus rhythm on amiodarone. the patient was scheduled for mitral valve replacement due to her severe mitral regurgitation. past medical history: significant for right mastectomy with chemotherapy in the and she has had a craniotomy in the remote past i believe in the . the patient denies history of diabetes mellitus or hypertension. preoperative medications: dilantin, phenobarbital, aspirin and amiodarone. physical examination on admission: essentially unremarkable with the exception of a loud systolic ejection murmur. hospital course: the patient was taken to the operating room on where she underwent a mitral valve replacement with a #31 carbomedics mechanical mitral valve. postoperatively was transported to the cardiac surgery recovery unit where she remained on an intravenous amiodarone drip as well as intravenous neo-synephrine drip for some hypotension. she was initially atrially paced at 100 due to significant bradycardia, which was junctional at times. on postoperative day one her intravenous amiodarone was converted to oral amiodarone at 200 mg per day, which was a decrease dose from the normal loading dose, because of her bradycardia and her underlying rhythm. she was intermittently av paced over the course of the next 24 to 48 hours due to hypotension and low cardiac index with low sco2s in her native rhythm. the patient was ultimately transferred out of the intensive care unit to the telemetry floor on postoperative day three. at this time she was still atrially paced, however, her underlying rhythm was normal sinus rhythm with a rate about 60 a minute and her blood pressure was stable in her underlying rhythm. on postoperative day four her pacing was discontinued and she had remained in sinus rhythm in the 70s with a stable blood pressure. she had begin to progress with physical therapy and ambulation and was started on coumadin for her mechanical mitral valve. the patient continued to progress slowly with cardiac rehabilitation and physical therapy due to complaints of generalized weakness, however, she remained hemodynamically stable throughout the next few days. today postoperative day six the patient remained stable and she is ready to be discharged home. physical examination on discharge: temperature 98.5. pulse 82, normal sinus rhythm. respiratory rate 18. blood pressure 98/54. her oxygen saturation is 99% on 2 liters per minute nasal cannula. her weight today is 60.8 kilograms, which is up slightly from her preoperative weight of 55.7. most recent laboratory values are from today , which revealed a white blood cell count of 7.5000, hematocrit 34.6, platelet count 210,000, sodium 139, potassium 4.3, chloride 105, co2 27, bun 8, creatinine 0.5, glucose 127. her pt today is 17.8 with an inr of 2.2. neurologically the patient is grossly intact. her pulmonary examination is unremarkable. her lungs are clear to auscultation bilaterally, although somewhat diminished at bilateral bases. coronary examination is regular rate and rhythm. her abdomen is benign. her sternum is stable. her incision is clean, dry and intact. her extremities are warm and well profuse with trace peripheral edema. the patient did have intermittent episodes of postoperative atrial fibrillation, however, has remained in normal sinus rhythm now for approximately 48 hours. discharge medications: coumadin, the patient has received 2 mg of coumadin on and and 3 mg of coumadin on and . her target inr is 3.0 for a mechanical mitral valve and her coumadin dosing will be followed by her primary care physician's office. his name is dr. . his telephone number is and his office was notified today of her coumadin dose as well as serial pt/inr ranges. other medications include aspirin 81 mg po q.d., lasix 20 mg po b.i.d. times one week, potassium chloride 20 milliequivalents po b.i.d. times one week, colace 100 mg po b.i.d., zantac 150 mg po b.i.d., amiodarone 200 mg po q.d., dilantin 100 mg po b.i.d., phenobarbital 30 mg q.a.m. and q.h.s., phenobarbital 15 mg po q evening with dinner. lopressor 12.5 mg po b.i.d. condition on discharge: stable. discharge diagnoses: 1. mitral regurgitation status post mitral valve replacement. 2. atrial fibrillation. follow up: the patient is to follow up with dr. in three to four weeks. the patient is to follow up with her primary care physician . in one to two weeks as well as contact his office for coumadin dosing. , m.d. dictated by: medquist36 procedure: extracorporeal circulation auxiliary to open heart surgery combined right and left heart cardiac catheterization coronary arteriography using two catheters angiocardiography of left heart structures open and other replacement of mitral valve diagnoses: other primary cardiomyopathies mitral valve disorders cardiac complications, not elsewhere classified atrial fibrillation personal history of malignant neoplasm of breast other convulsions other specified cardiac dysrhythmias personal history of malignant melanoma of skin 

Answer: The patient is high likely exposed to