Which is an advantage of using an autologous saphenous vein graft?
a. Less expensive than an allograft
b. Does not have to be anastomosed to the receiving vessel
c. Is lined with epithelial cells to inhibit clotting
d. Decreases in diameter as it courses distally
ANS: C
The saphenous vein is commonly used for an autologous arterial bypass or vein graft. It is an ideal graft because it is lined with endothelial cells, which produce fibrinolytic substances to inhibit clotting. Autologous vein grafts also have a higher success rate than allografts or xenografts.
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