unstable angina


Unstable angina or sometimes referred to as acute coronary syndrome causes unexpected chest pain, and usually occurs while resting.  The most common cause is reduced blood flow to the heart muscle because the coronary arteries are narrowed by fatty buildups (atherosclerosis) which can rupture causing injury to the coronary blood vessel resulting in blood clotting which blocks the flow of blood to the heart muscle.


Unstable angina should be treated as an emergency.

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