Myocardial Infarction
Myocardial infarction, commonly known as heart attack, develops if the blood supply to the heart is cut off. The most common cause of blockage is the accumulation of cholesterol, fat, and other content in the arteries that supply the heart (coronary arteries), forming plaque.
A plaque can sometimes break and create a clot, obstructing blood flow. Portions of the heart muscle can be damaged or destroyed if blood flow is disrupted. Although a myocardial infarction may be life-threatening, treatment has vastly improved over the past years. If you think you're experiencing a heart attack, contact 911 or get emergency medical care right away.