Asymptomatic myocardial ischemia

Asymptomatic myocardial ischemia, also called painless myocardial ischemia or occult myocardial ischemia (SMI), refers to the objective evidence of myocardial ischemia (ECG activity, left ventricular function, myocardial blood perfusion, and myocardial metabolism, etc. Abnormal), but lack of chest pain or subjective symptoms associated with myocardial ischemia. Asymptomatic myocardial ischemia is very common in coronary heart disease, and myocardial ischemia can cause reversible or permanent damage to the myocardium and cause angina pectoris, arrhythmia, pump failure, acute myocardial infarction or sudden death. Therefore, it is a Independent types have attracted more and more attention.

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