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: the patient is a 73-year-old female with known history of mitral regurgitation which was initially asymptomatic. she was followed with serial echocardiograms, and the last showed an increase in mitral regurgitation. she was referred for evaluation for repair. past medical history: status post catheterization on showing no coronary artery disease and 3+ mitral regurgitation. hypertension. gastroesophageal reflux disease. osteoporosis. status post lumpectomy. allergies: no known drug allergies. medications on admission: .................. 16 mg q.d., prevacid 15 mg q.d., .................. 16 mg q.d., atrovent p.r.n., cod liver oil, vitamin e, folate. family history: positive for stroke and hypertension. social history: she lives at home with husband. she has three drinks q.d. no cigarettes since . hospital course: the patient underwent a mitral valve replacement with a #25 ................ valve on . she was transferred to the csru postoperatively intubated and sedated. she was hemodynamically stable at this point. on postoperative day #1, it was noted that the patient had a large amount of drainage from the chest tube. at this point, she also dropped her systolic blood pressure to the 60s and was started on neo-synephrine to titrate up the blood pressure. she was also atrial paced in the 90s. lab checks revealed irregular coagulation, and she was given 4 and 5 u of platelets. her bleeding eventually subsided in a few hours. she was slowly weaned off the pressors and extubated on the evening . after extubation, it was noted that the patient had some language difficulties and was not moving the left arm. on postoperative day #2 a neurology consult was obtained to assess the left-sided weakness for new stroke. they recommended a ct scan. ct scan revealed low attenuation within the right frontal parietal region with effacement of the sulci which could be consistent with an acute stroke. she was followed by neurology. she was started on aspirin. over the next couple of days, her left-sided weakness gradually decreased. she is not at the point where she can move the left arm and leg, although it is slightly weaker than the right. she feels back to near normal, and her speech is back to baseline. she was transferred out to the regular floor in stable condition on . she continued to do well during her stay on the floor. her pacing wires were discontinued on postoperative day #4. she is ready for discharge to a rehabilitation facility specifically on rehabilitation when a bed is available. addendum: repeat follow-up ct of the head was performed on , which showed no significant interval change involving the small right-sided frontal low attenuation, most likely consistent with a small evolving infarct. discharge medications: aspirin enteric coated 325 mg p.o. q.d., colace 100 mg b.i.d., lasix 20 mg p.o. q.d. x 1 week, lopressor 50 mg b.i.d., percocet tab q.4-6 hours p.r.n., kcl 20 meq q.d., protonix 40 mg q.d., amiodarone 400 mg q.d., ................. 2 puffs q.i.d. fop: primary care physician in two weeks and with dr. in four weeks. , m.d. dictated by: medquist36 procedure: extracorporeal circulation auxiliary to open heart surgery other electric countershock of heart open and other replacement of mitral valve with tissue graft diagnoses: esophageal reflux mitral valve disorders unspecified essential hypertension osteoporosis, unspecified ventricular fibrillation iatrogenic cerebrovascular infarction or hemorrhage 

Answer: The patient is high likely exposed to