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: she had 1-short run of atrial fibrillation on the day after cardioversion, but returned spontaneously to sinus rhythm. she was started on amiodarone 400 mg t.i.d. and with subsequent taper as listed in her discharge medications. her beta-blockade was switched to atenolol 75 mg once a day, and she had a short course of aggressive diuresis with iv lasix. she was ready for discharge to rehab in stable condition on with the following changes in her medication: lopressor was discontinued. she was started on atenolol 75 mg once a day, amiodarone 400 mg p.o. t.i.d. for 7 days, followed by 400 mg p.o. b.i.d. for 7 days, followed by 400 mg once a day for 7 days, and then 200 mg once a day ongoing. she was to continue lasix 80 mg iv b.i.d. for 3 days, followed by lasix 80 mg p.o. b.i.d. standing. , m.d. procedure: insertion of intercostal catheter for drainage extracorporeal circulation auxiliary to open heart surgery intraoperative cardiac pacemaker atrial cardioversion open and other replacement of aortic valve with tissue graft open and other replacement of mitral valve with tissue graft monitoring of cardiac output by other technique transfusion of packed cells diagnoses: coronary atherosclerosis of native coronary artery esophageal reflux unspecified essential hypertension diabetes mellitus without mention of complication, type ii or unspecified type, not stated as uncontrolled cardiac complications, not elsewhere classified gout, unspecified atrial fibrillation percutaneous transluminal coronary angioplasty status rheumatic heart failure (congestive) surgical operation with implant of artificial internal device causing abnormal patient reaction, or later complication,without mention of misadventure at time of operation other psoriasis mitral valve stenosis and aortic valve stenosis 

Answer: The patient is high likely exposed to