Veins can sometimes be used to replace arteries that are diseased. The process of removing them is called harvesting.

Leg veins are frequently used for vein harvesting. For open chest procedures, like coronary artery bypass grafting (CABG), veins or other blood vessels in the chest are often used.

Diseased arteries with atherosclerosis have a buildup of plaque that can block the flow of blood. Coronary (heart) or carotid arteries to the brain are often repaired by making a bypass. Vein grafts are most often used to bypass these blocked arteries.

Coronary Artery Bypass Grafts
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