Myocardial ischemia

Myocardial ischemia refers to a pathological state in which reduced blood perfusion to the heart leads to decreased myocardial oxygen supply, abnormal energy metabolism, and inability to maintain normal cardiac work. Coronary artery stenosis or occlusion caused by coronary atherosclerosis can lead to myocardial ischemia and hypoxia, and is the most important and common cause of myocardial ischemia. Therefore, coronary heart disease is the "chief culprit" of myocardial ischemia. Myocardial ischemia seriously endangers the health of middle-aged and elderly people. In recent years, with the improvement of living standards, coronary atherosclerosis has shown a trend of occurring in younger individuals, and some people aged 20-30 also show manifestations of myocardial ischemia.