,PROCEDURES: , Aortic valve replacement using a mechanical valve and two-vessel coronary artery bypass grafting procedure using saphenous vein graft to the first obtuse marginal artery and left radial artery graft to the left anterior descending artery.
,PROCEDURES : , Aortic valve replacement using a mechanical valve and two - vessel coronary artery bypass grafting procedure using saphenous vein graft to the first obtuse marginal artery and left radial artery graft to the left anterior descending artery .