Coronary thrombosis

The coronary thrombosis - A condition in which a thrombus (blood clot) narrows or blocks one of the coronary arteries, thereby preventing sufficient oxygen from reaching a section of the heart muscle.

In most cases, the thrombus forms in a blood vessel that has already been narrowed by atherosclerosis. Sudden blockage of a coronary artery will cause a myocardial infarction (heart attack).


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