A new technique for relaxing the saphenous vein during harvesting for coronary bypass grafting☆

We describe a technique of treating the saphenous vein with a new vasodilator solution during harvesting for coronary bypass grafting. In a previous study, glyceryl trinitrate (GTN) and verapamil caused full relaxation of the vein. When used in combination, these agents caused a rapid onset (due to GTN) and long duration of action (due to verapamil). We routinely apply this solution to the inside and the outside of the saphenous vein during harvesting to provide a relaxed venous conduit for coronary bypass grafting.