ANGIOGRAPHIC EVALUATION OF A CAROTID SUBCLAVIAN BYPASS GRAFT IN A PATIENT WITH SUBCLAVIAN ARTERY-STENOSIS AND LEFT INTERNAL MAMMARY ARTERY BYPASS GRAFT

The incidence of coronary subclavian steal syndrome is estimated to be 0.4%. When revascularization is necessary, the preferred technique is the carotid-subclavian bypass graft. Failure of a carotid-subclavian graft is rare. We present a patient with subclavian stenosis who requi red reevaluation of both the carotid subclavian conduit and the left i nternal mammary bypass graft. A combined femoral and left brachial app roach is recommended for evaluating the carotid-subclavian graft and l eft internal mammary artery graft in patients with bypassed subclavian artery stenosis and prior myocardial revascularization. (C) 1994 Wile y-Liss, Inc.