coronary bypass n a surgical bypass operation performed to shunt blood around an obstruction in a coronary artery that usu. involves grafting one end of a segment of vein (as of the saphenous vein) removed from another part of the body into the aorta and the other end into the coronary artery beyond the obstructed area to allow for increased blood flow called also coronary artery bypass
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coronary artery bypass a section of vein or other conduit grafted between the aorta and a coronary artery to circumvent an obstructive lesion in the coronary artery; called also aortocoronary b.
Coronary artery bypass. Three-dimensional reconstruction showing arterial bypass graft to the anterior interventricular branch of left coronary artery (left arrow) and venous graft to the circumflex branch of left coronary artery (right arrow). A venous graft to the right coronary artery is not visible in this view.
Medical dictionary. 2011.