Heart attack 插畫檔

Myocardial infarction. Myocardial infarction is a necrosis of a part of the heart muscle following the cessation of blood supply (ischemia), this is most often due to an obstruction of a coronary artery. The obstruction is generally caused by the presence of an atheromatous plaque on the wall of the artery and the formation of a thrombus. Risk factors are smoking, high blood pressure, stress and a sedentary lifestyle