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 47 year old female with known mitral valve prolapse with mitral regurgitation who had been followed by an outside cardiologist. patient's mitral regurgitation was recently noted to be severe enough to warrant surgical intervention. past medical history: none. past surgical history: none. medications: none. echocardiogram results (): the study demonstrated a dilated left ventricle with a chamber size of 63 mm with normal wall thickness and systolic and diastolic function with classic bileaflet mitral valve prolapse and thickened myxomatous leaflet with severe mitral regurgitation with mildly dilated left atrium (42 mm). in comparison with the patient's prior study, patient's left ventricle and left atrium were noted to have increased in size. hospital course: the patient was admitted to the medical center on and underwent minimally invasive right thoracotomy with mitral valve repair using a 30 mm band. patient had an uneventful postoperative course. she was transferred to the cardiothoracic surgery floor on postoperative day one. by post-op day three patient's pain was well controlled on oral pain medication. she was ambulating well on the floor and had met level 5 physical therapy targets. she was deemed stable for discharge to home. condition on discharge: stable. discharge medications: 1. percocet p.r.n. 2. colace 100 mg p.o. b.i.d. 3. enteric coated aspirin 325 mg p.o. q.day. fo: the patient is to follow up with dr. four weeks following discharge. patient was also to follow up with her primary care physician two to four weeks following discharge. discharge diagnosis: mitral valve prolapse with severe mitral regurgitation requiring surgical repair. , m.d. dictated by: medquist36 procedure: extracorporeal circulation auxiliary to open heart surgery open heart valvuloplasty of mitral valve without replacement diagnoses: mitral valve disorders 

Answer: The patient is high likely exposed to