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: mr. is a 75 year-old man who presented to his primary care physician's approximately two months prior to admission with "gassiness" in his lower chest, which is relieved with milk and prilosec. in addition it was noted that the patient had a seven pound weight gain. the patient also had increased blood pressure. he presented to the emergency department with shortness of breath on . chest x-ray showed congestive heart failure at that time. the patient was admitted and worked up for failure. he also denied chest pain or gassiness at the time of that admission. he was admitted to the medical service where he underwent echocardiogram, which showed an ef of 25% and wide spread hypokinesis. he had a stress test that showed dyspnea on exertion without anginal symptoms. incomplete dictation; ignore per dictator , m.d. dictated by: medquist36 procedure: (aorto)coronary bypass of three coronary arteries single internal mammary-coronary artery bypass extracorporeal circulation auxiliary to open heart surgery diagnoses: coronary atherosclerosis of native coronary artery pure hypercholesterolemia mitral valve disorders congestive heart failure, unspecified unspecified essential hypertension diabetes mellitus without mention of complication, type ii or unspecified type, not stated as uncontrolled personal history of tobacco use retention of urine, unspecified family history of ischemic heart disease 

Answer: The patient is high likely exposed to