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: past medical history: his past medical history is significant for hypertension, aortic stenosis and mild obesity. past surgical history: significant for a left open reduction and internal fixation of an ankle. medications on admission: effexor 37.5 mg q.o.d., verapamil 180 mg p.o. q.d., zestoretic 20/12.5 p.o. q.d., calcium p.o. q.d., miacalcin p.o. q.d., vitamin c q.d., garlic q.d., fish oil q.d. and multivitamin q.d. allergies: she had no known drug allergies. family history: significant for mother deceased at 79, father deceased at 80. social history: she is an office manager. she smoked 1.5 packs per day times 40 years and quit nine months ago. she lives with her husband. she drinks 2 glasses of wine per day. she does not use cocaine. physical examination: physical examination is significant for being alert and oriented times three. her lungs are clear to auscultation. her heart has a iv/vi holosystolic murmur with radiation to the neck. her abdomen is soft, nontender, nondistended. she has no costovertebral angle tenderness. the extremities had no cyanosis, clubbing or edema. her cranial nerves are intact ii through xii, nonfocal examination. excellent strength in all four extremities. ho course: mrs. was taken to the operating room on with a diagnosis of aortic stenosis and underwent an aortic valve replacement with a . mechanical valve. this was done by dr. and assisted by dr. , md, and tepperow and . she came out into the recovery room on propofol 30 and eo 1. th was admitted to the cardiac surgery recovery unit and had an uneventful day on postoperative day #1. he was transferred to r2 on . of note, on , the patient did have a cardiac arrest. however, this was shortlived and the patient was found immediately in her room to have a heart rate in the 30s with a blood pressure of approximately 90 pace was actually at that time but she had poor capture. dr. was at the patient's bedside at the time. a dopa drip was started with some improvement in the patient's blood pressure. however, she continues to have asystole and then went back into a rhythm. the patient was taken emergently to the electrophysiology laboratory where a temporary transvenous wire was placed with ventricular capture. the patient was then returned to the cardiac surgery recovery unit and was being depaced, 100%, blood pressure of 130 in stable condition. the director of the cardiac surgery recovery unit, dr. was notified and was aware of all events surrounding the patient's care. on postoperative day #2, , the patient was stable and was deemed ventricularly paced at a rate of 96 with a blood pressure of 117/52 on no drips at that time. on , the patient was taken to the electrophysiology laboratory for transvenous screw and temporary pacer. at that time, a vvi sigma sgr 303 pacemaker was placed with a bipolar connector (is-1vi). during the hv measurement, the patient was noted to have complete heartblock with a block below the bundle of his. the placement of a permanent pacemaker was delayed until her fever had come down. the patient was transferred from the cardiac surgery recovery unit to far 2 on . her pacer was interrogated on . at this time she was on intravenous heparin for her valve and this was continued. she was on vancomycin and levofloxacin at this time for this pacemaker. she was transfused on postoperative day # for a hematocrit of 18 which came up to 24. this was done without complications. she was taken back on to the electrophysiology laboratory for the placement of a dual chamber rate-responsive pacemaker, model #sdr303b. the bipolar connector was model #4092 and the second bipolar connector was is-1 vi, model 5076. the mode was set at a mode of ddi with the lower rate of 55 ppm and paced av at 420 milliseconds, serial # , manufactured by . on postoperative day #7, the patient received another 2 units of blood for anemia. her heparin was continued and based on inr, it is not yet therapeutic. her antibiotics were continued and her lopressor was also continued. the plan was for discharge upon stabilization of her inr. the following days of her hospitalization were significant for a physical therapy evaluation, deeming her steady in gait and stable for discharge. on postoperative day #10 her temperature maximum was 100.1 and she continued to have edema in her lower extremities. she was continued on her diuretics, and her lopressor dose was increased. on , she was deemed stable for discharge. her inr was 2.6. she was discharged with a dose of 2.5 mg of coumadin for with for blood draw the following day. she had instructions and her primary care physician was aware to accept a phone call from her on monday to dose her coumadin appropriately, based on her mechanical aortic valve. discharge diagnosis: 1. improved critical aortic stenosis 2. hypertension 3. placement of a permanent pacemaker, aortic valve replacement 4. infection of unknown origin 5. obesity 6. depression discharge medications: 1. lasix 20 mg p.o. b.i.d. times two weeks 2. potassium 20 mg b.i.d. times two weeks 3. aspirin 81 mg, enteric coated one tablet p.o. q.d. 4. coumadin 2.5 mg p.o. times one on with rigorous follow up starting tomorrow with blood draw with and a phone call to her physician who will be expecting this phone call tomorrow afternoon with the result of her inr with meticulous follow up after that point for her valve. , m.d. dictated by: medquist36 procedure: extracorporeal circulation auxiliary to open heart surgery intraoperative cardiac pacemaker initial insertion of dual-chamber device initial insertion of transvenous leads [electrodes] into atrium and ventricle open and other replacement of aortic valve insertion of temporary transvenous pacemaker system diagnoses: coronary atherosclerosis of native coronary artery unspecified essential hypertension cardiac complications, not elsewhere classified aortic valve disorders atrioventricular block, complete cardiac arrest surgical operation with implant of artificial internal device causing abnormal patient reaction, or later complication,without mention of misadventure at time of operation obesity, unspecified accidents occurring in residential institution 

Answer: The patient is high likely exposed to