Angina vs. Ischemia — What's the Difference?

Angina, also known as angina pectoris, is chest pain or pressure, usually due to insufficient blood flow to the heart muscle. Angina is usually due to obstruction or spasm of the arteries that supply blood to the heart muscle.

Ischemia or ischaemia is a restriction in blood supply to tissues, causing a shortage of oxygen that is needed for cellular metabolism (to keep tissue alive). Ischemia is generally caused by problems with blood vessels, with resultant damage to or dysfunction of tissue i.e.

Angina pectoris.

A decrease in the blood supply to a bodily organ, tissue, or part caused by constriction or obstruction of the blood vessels.

A condition, such as severe sore throat, in which spasmodic attacks of suffocating pain occur.

Local disturbance in blood circulation due to mechanical obstruction of the blood supply (for example, embolism, thrombosis, or vasoconstriction).

(pathology) An inflammatory infection of the throat, particularly quinsy.

Local anemia in a given body part sometimes resulting from vasoconstriction or thrombosis or embolism

(pathology) angina pectoris

A chest pain or shortness of breath occurring with lesser degrees of arterial blockage.

Any inflammatory affection of the throat or faces, as the quinsy, malignant sore throat, croup, etc., especially such as tends to produce suffocation, choking, or shortness of breath.

Any disease of the throat or fauces marked by spasmodic attacks of intense suffocative pain

A heart condition marked by paroxysms of chest pain due to reduced oxygen to the heart