Coronary artery disease (CAD)
✔ ️known as atherosclerotic heart disease, atherosclerotic cardiovascular disease, coronary heart disease, ischemic heart disease (IHD), heart attacks.
✔ ️commonly known as a heart attack.
✔ ️An MI occurs when blood stops flowing properly to a part of the heart, and the heart muscle is injured because it is not receiving enough oxygen.
✔ ️Usually this is because one of the coronary arteries that supplies blood to the heart develops a blockage due to an unstable buildup of white blood cells, cholesterol and fat.
✔ ️The event is called "acute" if it is sudden and serious.
ECG Features :
✔ ️ In early STEMIs there may just be peaked T waves with ST elevation developing later.
✔ ️Hyper acute (tall) T waves, ST elevation or new LBBB occur within hours of transmural infarction.
✔ ️ST elevation in two or more adjacent ECG leads.
✔ ️This must be greater than 2 mm (0.2 mV) for males and greater than 1.5 mm (0.15mV) in females if in leads V2 and V3 or greater than 1 mm (0.1 mV) if it is in other ECG leads.
✔ ️ A left bundle branch block that is believed to be new used to be considered the same as ST elevation; however, this is no longer the case.
✔ ️T wave inversion and development of pathological Q waves follow over hours to days