Myocardial infarction in the elderly

Myocardial infarction is a pathological process in which a coronary artery is continuously ischemic, and the myocardium dominated by it undergoes irreversible necrosis. The basic cause of myocardial infarction in the elderly is coronary atherosclerosis. Common causes are excessive fatigue, high mental stress, cold stimulation, major surgery, high-fat or satiety diet, smoking, and carbon monoxide poisoning. Senile myocardial infarction has the following clinical characteristics: ① clinical symptoms are more atypical; ② there are other diseases (hypertension, diabetes, cerebrovascular disease, respiratory tract, gastrointestinal tract and urinary system infection, etc.) before the onset; ③ day and night The regularity of seizures, mostly from 6 to 12 in the morning, may be related to changes in catecholamine levels in the body; ④ the relationship with weather and climate change.

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