The dangers of heart attack include arrhythmia, heart failure, ventricular septal perforation and heart rupture, and even sudden death. Myocardial infarction is clinically known as myocardial infarction, is due to acute, persistent severe ischemia and hypoxia of the myocardium leading to myocardial necrosis of a class of serious coronary heart disease, the main symptoms of severe chest pain, dyspnea, nausea, etc., myocardial infarction may result in cardiac arrhythmia, cardiac failure, cardiac valvular insufficiency, ventricular septum perforation, cardiac rupture, and in severe cases, may lead to shock or even sudden death. Patients with coronary artery disease who experience severe chest pain that is not relieved by rest need to seek immediate medical attention and be treated with medications such as atorvastatin and aspirin, and coronary stenting and coronary artery bypass grafting if necessary. Myocardial infarction is a very serious disease, and it is recommended that patients seek timely medical treatment and follow the doctor’s instructions to improve the prognosis.