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 46-year-old male who presented to the emergency department with complaints of chest pain. his chest pain work up included ekg and a chest x-ray, which were consistent with acute myocardial infarction and chest x-ray demonstrated a wide mediastinum. the patient was in the process of getting a ct angio to rule out dissecting aorta, when he acutely decompensated with pulmonary edema on the ct scanner. the patient was intubated and was taken to the cardiac catheterization lab for a suspected possible coronary syndrome. on cardiac catheterization, a large ascending aortic dissection was detected with the dissection extending into the aortic valve and causing 4+ aortic insufficiency. at that time, the patient was booked for emergent or for repair of his aortic dissection. past medical history: hypertension. medications on admission: none. allergies: no known drug allergies. physical examination: the patient is sedated, intubated. heent - atraumatic, normocephalic. neck is supple, midline with no masses or lymphadenopathy. the chest is clear to auscultation bilaterally. cardiovascular is tachycardiac, normal s1 and s2, no murmurs, rubs or gallops noted. abdomen is soft, nontender, nondistended with no masses or organomegaly. extremities are warm, noncyanotic, nonedematous. neuro is sedated. hospital course: the patient was taken emergently to the operating room and had a repair of his type a aortic dissection with a #26 gelweave as well as re-distention of the aortic valve. operative findings included the fact that the dissection extending into the aortic valve and nearly involve the left main coronary artery. for full details of the operation, please see the previously dictated operative note. postoperatively, the patient was transported to the csru and had appropriate care to maintain blood pressure less than 140 systolic. the patient was awoken from sedation and seemed to move all extremities. he was re-sedated and eventually weaned off ventilation. subsequent to this the patient had an essentially unremarkable postoperative course. his hypertension was controlled with oral hypotensives and the patient's activity was advanced as tolerated. ultimately, the patient was discharged on postoperative day six, tolerating a regular diet, adequate pain control on p.o. pain meds and having no further symptoms of chest pain. a ct angio scan was obtained on , which did demonstrate continued aortic dissection distal to the interposition graft, partially involved the innominate artery. there was also a small pericardial effusion noted. discharge condition: stable. disposition: home with vna. medications: 1. lopressor 100 mg b.i.d. 2. lasix 20 mg b.i.d. x2 weeks. 3. potassium chloride 20 meq b.i.d. x2 weeks. 4. aspirin 325 mg q.d. 5. zantac 150 mg b.i.d. 6. percocet 5/325 one to two tablets q4 hours p.r.n. 7. iron complex 150 mg q.d. 8. vitamin c 500 mg b.i.d. instructions: the patient is to continue ambulation and pulmonary toilette. vna is to come in for cardiopulmonary checks as well as assessment of the wound. the patient should continue with the cardiac diet. no heavy lifting with a 10 pound weight limit, no driving. the patient should follow up with his primary care provider 4 weeks. the patient should follow up with dr. in 4 weeks. the patient should follow up with the wound clinic in 2 weeks for wound check. the patient will ultimately need follow up ct scans, initially at 3, 6 and 12 months and subsequently 1 to 2 years after that. , m.d. dictated by: medquist36 procedure: continuous invasive mechanical ventilation for less than 96 consecutive hours extracorporeal circulation auxiliary to open heart surgery injection or infusion of platelet inhibitor coronary arteriography using a single catheter insertion of endotracheal tube resection of vessel with replacement, thoracic vessels angiocardiography of right heart structures suture of artery right heart cardiac catheterization open heart valvuloplasty of aortic valve without replacement diagnoses: pure hypercholesterolemia congestive heart failure, unspecified unspecified essential hypertension aortic valve disorders acute respiratory failure cardiogenic shock acute myocardial infarction of unspecified site, initial episode of care dissection of aorta, thoracic 

Answer: The patient is high likely exposed to