What are unstable angina and stable angina?

Unstable angina and stable angina are two different types of heart disease.

Stable angina refers to coronary artery stenosis caused by certain circumstances, such as physical activity, emotional agitation, or cold stimulation, but the degree of stenosis is relatively stable, and the onset and duration are relatively fixed. Patients usually relieve after rest or treatment with relevant drugs as prescribed by their doctor. Unstable angina refers to chest pain that occurs irregularly, may occur in a quiet state, and may occur even during sleep. It is generally caused by worsening coronary artery stenosis or thrombosis, and may progress to acute myocardial infarction. It is

recommended that patients with angina should go to the hospital as soon as possible and inform the doctor of symptoms and medical history so that appropriate diagnosis and treatment measures can be taken.