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: addendum: pt with arf post operative course secondary to hypovolemia / diuresis did recieve gentle hydration high creat 1.7 / on dc 1.1 discharge disposition: home with service facility: , md procedure: (aorto)coronary bypass of three coronary arteries single internal mammary-coronary artery bypass extracorporeal circulation auxiliary to open heart surgery open and other replacement of mitral valve with tissue graft diagnoses: coronary atherosclerosis of native coronary artery mitral valve disorders congestive heart failure, unspecified unspecified essential hypertension acute kidney failure, unspecified atrial fibrillation personal history of tobacco use other and unspecified hyperlipidemia diseases of tricuspid valve 

Answer: The patient is high likely exposed to