What are the three types of angina?

The three types of angina are stable, unstable, and variant. Each type represents different underlying conditions and triggers related to myocardial ischemia.

Stable angina is characterized by predictable chest pain that usually occurs with exertion or stress and is relieved with rest or nitroglycerin. This type of angina is associated with atherosclerotic coronary artery disease, where there is a stable, fixed narrowing of the coronary arteries.

Unstable angina, on the other hand, is typically more severe and unpredictable. It can occur at rest, last longer, and may not respond well to rest or medication. This situation is often a precursor to a heart attack and indicates a more serious reduction in blood flow due to plaque rupture or increased thrombosis.

Variant angina, also known as Prinzmetal's angina, is caused by coronary artery spasm. It typically occurs at rest, often in cycles or during the night, and can be associated with ST-segment elevation on an electrocardiogram during episodes. This spasm temporarily reduces blood flow to the heart muscle.

These three types encompass the varying presentations of angina, reflecting different pathological mechanisms and clinical implications for patient management and treatment. Other options included in the question mix and match terminologies