I have coronary artery disease. I have had two stents placed in the LAD and the RCA 4 years ago. My ECG today shows ST and T waves abnormalities and possible anterolateral ischemia. I have unstable angina, but not having ssx that I had before the stents were placed. I am wondering if this is something that just goes along with CAD or should I be worried that I could possible have to have another stent placement or bypass surgery in the future. Both of my parents had bypass surgery. My father was 58 and my mom was 71. I am 57 and otherwise in good health and healthy weight. Thanks.