Spasm of saphenous veins used as conduits for aortocoronary bypass grafting.
D001026:Coronary Artery Bypass; D006801:Humans; D011183:Postoperative Complications; D012501:Saphenous Vein / Q000473:pathology / Q000637:transplantation*; D013035:Spasm / Q000473:pathology*