T. BUCK / CUSTOM MEDICAL STOCK PHOTO / SCIENCE PHOTO LIBRARY T. BUCK / CUSTOM MEDICAL STOCK PHOTO / SCIENCE PHOTO LIBRARY
Illustration of a coronary artery bypass graft (CABG). This is a surgical procedure performed on the heart to treat diseased coronary arteries. During CABG a piece of healthy artery or vein (white), taken from another part of the body, is attached to the diseased coronary artery (red). This re-routes the blood flow, bypassing the blocked coronary artery. Blood vessels branching off the grafted vessel have been tied off with black thread. Blood vessels can become blocked by the build up of fatty plaques, atherosclerosis. This reduces blood flow to the areas served by the blood vessel. Inadequate blood flow to the heart can lead to heart pain (angina) or a heart attack (myocardial infarction).
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