Myocardial infarction

Definition

Myocardial infarction – or 'heart attack' – is a type of acute coronary syndrome in which sudden blockage of a coronary artery, and subsequent myocardial ischaemia, results in damage to the surrounding heart muscle. In a myocardial infarction, the coronary artery is usually blocked by a blood clot that has formed on an atherosclerotic plaque.

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