Acute coronary attacks are more serious, although the severity is determined by the patient’s specific symptoms. If the attack is just angina, it also falls under the category of acute coronary syndrome. Unstable angina indicates that the patient has an unstable plaque or is prone to severe localized coronary artery stenosis, which requires further treatment to prevent rupture of the plaque, leading to complete occlusion of the coronary artery, which can lead to serious events such as sudden death. If acute coronary heart disease is manifested as acute myocardial infarction at the beginning of the attack, the risk of patients in this case is very high. According to past statistics, the incidence of sudden death outside the hospital is about 20%, so if acute chest pain is found to be unrelieved and there is a clear history of coronary heart disease, it is important to go to the hospital for treatment in a timely manner. Local hospitals have chest pain centers and so on, to promptly call 120 to inform the hospital that the patient has acute chest pain with a history of coronary heart disease, the hospital will quickly dispose of it.