What are the causes of sudden cardiac death?

When it comes to sudden death, most people don't quite understand it, because we all know that sudden death sounds scary, especially sudden cardiac death, which is mainly caused by excessive excitement, myocardial infarction or coronary heart disease, and most of the time it happens to many older people.

1. Cause: Foreign data show that 81% of sudden cardiac deaths have obvious coronary heart disease, the main pathological feature of which is more than 75% stenosis of one or more coronary arteries, of which 94% have at least one blood vessel with more than 75% stenosis, 58% have acute coronary artery occlusion, 44% have healed myocardial infarction, and 27% have acute myocardial infarction. These studies suggest that extensive coronary artery disease is the main pathology of sudden death due to coronary heart disease, and that thrombosis in the coronary arteries and spasm of the coronary vessels further promote myocardial damage and decreased ECG stability, thereby inducing ventricular fibrillation and cardiac arrest.

2. Common causes

(1) Physical fatigue: more intense and prolonged labor than before, causing excessive fatigue.

(2) Overeating, drinking, and excessive smoking.

(3) Excessive excitement and agitation of the mental nerves.

(4) Severe heart failure: unstable angina.

(5) Hypokalemia and hypomagnesemia.

(6) Certain antiarrhythmic drugs.