What is the most common cause of sudden cardiac death?

The main cause of sudden cardiac death is coronary heart disease, especially acute myocardial infarction. Other causes include cardiomyopathy, ion channel disease, etc. The main cause of sudden cardiac death is coronary heart disease, especially acute myocardial infarction. Acute myocardial infarction (AMI) is a severe and persistent acute myocardial ischemia resulting in myocardial necrosis on the basis of coronary artery disease. Its clinical manifestations are compressive pain in the chest region, accompanied by nausea, vomiting, dyspnea, arrhythmia, heart failure and other symptoms. In severe cases, it can lead to sudden death. In addition to coronary heart disease, other possible causes of sudden cardiac death include: cardiomyopathy: hypertrophic cardiomyopathy, dilated cardiomyopathy, etc. Ion channel disease: Brugada syndrome, long QT syndrome, etc. Heart valve disease: aortic valve stenosis, mitral valve prolapse, etc. Others: myocarditis, pericarditis, arrhythmia, etc. For high-risk groups of sudden cardiac death, such as patients with coronary heart disease, cardiomyopathy, ion channel disease, etc., treatment should be carried out according to medical advice, and regular physical examination and follow-up should be carried out to detect and deal with potential cardiac problems early. In addition, maintaining a healthy lifestyle, such as smoking cessation, alcohol restriction, weight control, moderate exercise, etc., can also help prevent sudden cardiac death. In conclusion, sudden cardiac death is a serious disease that should be highly valued for high-risk populations. Early detection and treatment of underlying cardiac problems, as well as maintaining a healthy lifestyle, can help reduce the risk of sudden cardiac death.