Angina, Angina pectoris, acute coronary syndrome:

Angina = pain from blood vessels            Pectoris = of the chest

Angina is pain caused by an inadequate blood supply (ischaemia) to part of the heart muscle due to a narrowing of one or more of the three small arteries that supply blood to the heart muscle. This narrowing may be due to hardening of the arteries, or a spasm of the artery caused by another disease, smoking, excitement, heavy meals or stress. Angina may lead to a heart attack, or a heart attack may cause angina, but they are two different problems. In a heart attack, part of the heart muscle deprived from enough oxygen actually dies.

Illustration showing angina

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