Asymptomatic myocardial ischemia in the elderly

Elderly asymptomatic myocardial ischemia (SMI) refers to the existence of objective evidence of myocardial ischemia without angina and related symptoms. The incidence of SMI in the elderly is higher than that in the young and middle-aged, and it is partly related to the damage of the pain alarm system due to advanced age, myocardial infarction, diabetes and other reasons. About millions of people in the United States suffer from SMI, which results in hundreds of thousands of myocardial infarctions and sudden coronary heart disease deaths each year. Therefore, mastering the basic knowledge of the disease has important clinical significance.

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