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Acute Coronary Syndrome, Myocardial Infarction, Unstable Angina

ACS: obstruction of a coronary artery by a thrombus overlying atherosclerotic plaque

ACS: obstruction of a coronary artery by a thrombus overlying atherosclerotic plaque

Acute Coronary Syndrome

Acute coronary syndrome (ACS) is the acute manifestation of coronary heart disease. It occurs when a thrombus forms over an atherosclerotic plaque within a coronary artery, an event described as atherothrombosis.16, 48 The symptoms and severity of acute coronary syndromes (unstable angina and myocardial infarction) vary depending on the degree to which thrombi occlude the coronary arteries.16, 48, 369

Learn more about acute coronary syndrome.

Unstable Angina

Among the spectrum of life-threatening disorders comprised by ACS is unstable angina, a worsening of angina symptoms caused by the formation of a thrombus that does not completely occlude the coronary artery and does not cause myocardial damage.48

Learn more about unstable angina.

Myocardial Infarction

Another life-threatening disorder comprised by ACS is myocardial infarction (MI) with no ST elevation (NSTEMI), which is similar to unstable angina but with signs of myocardial ischaemia on electrocardiogram.48

Learn more about myocardial infarction.

Find out more about acute coronary syndrome, unstable angina, and myocardial infarction.

See also: Atrial Fibrillation

See also: Embolism Pulmonary Sign


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