Question

Why is the greater saphenous vein used for a bypass graft?

Answer 1

becozz The valvotomized vein used as a bypass graft functions more like a normal coronary artery. The main advantage of using the vein in a nonreversed position is that the proximal orifice in the aorta can be made larger, thereby preventing fibrosis leading to obstruction at the aortic anastomosis