Blocked Coronary Artery
by Simon Fraser/science Photo Library
Title
Blocked Coronary Artery
Artist
Simon Fraser/science Photo Library
Medium
Photograph - Photograph
Description
Heart disease. Coloured angiogram showing a severe stenosis (narrowing, from red to yellow, top centre) of the left coronary artery. The function of the coronary arteries is to supply blood to the heart muscle. Stenoses impair the supply and may lead to angina pectoris (chest pain) or more seriously to a myocardial infarction (heart attack). The obstruction builds up from plaques of atheroma (fatty deposits) which can cause atherosclerosis. Further narrowing may be caused by thrombi (blood clots) formed on the roughened surface of the plaques. A normal blood flow may be restored by using balloon angioplasty in which the artery is stretched by a small balloon.
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October 3rd, 2018
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