Conditions We Treat: Myocardial Infarction | Johns Hopkins …

A myocardial infarction (MI), commonly known as a heart attack, occurs when a portion of the heart is deprived of oxygen due to blockage of a coronary artery. Coronary arteries supply the heart muscle (myocardium) with oxygenated blood. Without oxygen, muscle cells served by the blocked artery begin to die (infarct).

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Conditions We Treat: Myocardial Infarction | Johns Hopkins ...