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: allergies: patient recorded as having no known allergies to drugs attending: chief complaint: asymptomatic, known pulmonic valve regurgitation major surgical or invasive procedure: redo sternotomy, pulmonic valve replacement with 29mm pericardial valve, and closure of patent foramen ovale history of present illness: mr. is a 36-year-old gentleman who underwent a tetralogy of fallot repair 16 years ago who has been followed now for progressive pulmonary pulmonic valve regurgitation as well as progressive right ventricular dilatation. he is currently asymptomatic but given the risk of sudden death due to his dilating right ventricle he has been referred to me for surgical replacement of his pulmonic valve. his cardiac echocardiogram from showed an ejection fraction of 55% and membranous ventricular septal defect, trace aortic insufficiency, a trivial mitral regurgitation, mild tricuspid regurgitation, and severe pulmonic regurgitation. he had dilated right ventricular cavity and it also noted moderate dilation of his sinus at 4.5 cm and a mildly dilated ascending aorta at 3.5 cm. a cardiac mri from showed severe pulmonic regurgitation, mild aortic insufficiency, mild tricuspid regurgitation, mild mitral regurgitation, and an effective forward ejection fraction of 52%, normal right ventricular ejection fraction of 55%, and oddly enough noted normal diameters of the ascending and descending aorta in comparison to the echocardiogram, which showed a dilated sinus. past medical history: tetralogy of fallot statuspost repair at at age 19, palpitations, right bundle-branch block, gi bleed related to a nonsteroidal antiinflammatory use as a teenager, and recent right ankle sprain which he tells me required surgery. social history: occupation: glass technician last dental exam: dental clearance in office lives with: wife : african american tobacco: denies etoh: rare/social family history: no premature coronary artery disease physical exam: pulse: 60 resp: 12 o2 sat: 100% b/p left: 105/69 height: 5'" weight:235 lbs general: african american male in no acute distress skin: dry intact heent: perrla eomi neck: supple full rom chest: lungs clear bilaterally heart: rrr irregular murmur ii/vidiastolic murmur abdomen: soft non-distended non-tender bowel sounds + extremities: warm , well-perfused edema varicosities: none neuro: grossly intact pulses: femoral right: 2+ left: 2+ dp right: 2+ left: 2+ pt : 2+ left: 2+ radial right: 2+ left: 2+ carotid bruit right: - left:- old, well-healed mediastinal incision pertinent results: intraop tee - prebypass: the left ventricular ejection fraction is mildly depressed. lvef 45-50%. there is a bidirectional shunt across the interatrial septum at rest. a small secundum atrial septal defect is present. the right ventricular cavity is moderately dilated with moderate global free wall hypokinesis. the ascending aorta is mildly dilated. there are three aortic valve leaflets. there is no aortic valve stenosis. mild (1+) aortic regurgitation is seen. mild (1+) mitral regurgitation is seen. severe pulmonic regurgitation is seen. diastolic flow reversal seen in the pulmonary artery. post-bypass: the rv function is moderately depressed on low dose epinephrine infusion (0.02 mcg/kg/min). lvef 45-50%. there is no shunt visualized across the interatrial septum status post asd repair. the pulmonary valve bioprothesis can be visualized, is well-seated, and is opening appropriately without paravalvular leak. there is no diastolic flow reversal in the pulmonary artery. all other pre-bypass findings are unchanged. aorta is intact post decannulation. all post bypass findings discussed with surgical team. brief hospital course: mr. was admitted and underwent redo sternotomy, pulmonic valve replacement with closure of a patent foramen ovale. for surgical details, please see operative note. following the operation, he was brought to the cvicu for invasive monitoring. within 24 hours, he awoke neurologically intact and was extubated without incident. he maintained stable hemodynamics and transferred to the sdu on postoperative day one. his pacing wires and chest tube was removed withpout sequele. pt worked with patient. cleared for home. lasix x 7 days. bb. medications on admission: atenolol 75 qd discharge medications: 1. metoprolol tartrate 25 mg tablet sig: 0.5 tablet po bid (2 times a day). disp:*30 tablet(s)* refills:*2* 2. furosemide 20 mg tablet sig: one (1) tablet po daily (daily) for 7 days. disp:*7 tablet(s)* refills:*0* 3. potassium chloride 20 meq tab sust.rel. particle/crystal sig: one (1) tab sust.rel. particle/crystal po daily (daily) for 7 days. disp:*7 tab sust.rel. particle/crystal(s)* refills:*0* 4. docusate sodium 100 mg capsule sig: one (1) capsule po bid (2 times a day). disp:*60 capsule(s)* refills:*0* 5. aspirin 81 mg tablet, delayed release (e.c.) sig: one (1) tablet, delayed release (e.c.) po daily (daily). disp:*30 tablet, delayed release (e.c.)(s)* refills:*2* 6. ranitidine hcl 150 mg tablet sig: one (1) tablet po daily (daily). disp:*30 tablet(s)* refills:*0* 7. tramadol 50 mg tablet sig: one (1) tablet po q4h (every 4 hours) as needed for pain. disp:*40 tablet(s)* refills:*0* 8. percocet 5-325 mg tablet sig: 1-2 tablets po every four (4) hours for 10 days: prn for pain. disp:*30 tablet(s)* refills:*0* discharge disposition: home with service facility: community nurse care,inc discharge diagnosis: pulmonic valve regurgitation, patent foramen ovale history of tetralogy of fallot, s/p repair at age 19 palpitations right bundle-branch block history of gi bleed related to a nonsteroidal antiinflammatory discharge condition: stable discharge instructions: 1)no driving for one month 2)no lifting more than 10 lbs for at least 10 weeks from the date of surgery 3)please shower daily. wash surgical incisions with soap and water only. 4)do not apply lotions, creams or ointments to any surgical incision. 5)please call cardiac surgeon immediately if you experience fever, excessive weight gain and/or signs of a wound infection(erythema, drainage, etc...). office number is . 6)call with any additional questions or concerns. followup instructions: dr. in weeks, call for appt dr. in weeks, call for appt local pcp weeks, call for appt procedure: extracorporeal circulation auxiliary to open heart surgery repair of atrial septal defect with prosthesis, open technique open and other replacement of pulmonary valve with tissue graft diagnoses: mitral valve insufficiency and aortic valve insufficiency ostium secundum type atrial septal defect right bundle branch block diseases of tricuspid valve rheumatic diseases of pulmonary valve 

Answer: The patient is high likely exposed to