Angioplasty is used to treat a heart attack. During coronary artery bypass grafting, a healthy artery or vein from your body is removed. The artery or vein is then connected, or grafted, to bypass the blocked section of the coronary artery. The grafted artery or vein bypasses or goes around the blocked portion of the coronary artery providing a new route for blood to flow to the heart muscle.
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