Left radial artery and left Gastroepiploic artery can be used as well. Long term patency is influenced by the type of artery used, as well as intrinsic factors of the cardiac arterial circulation.Venous grafts used are mostly great saphenous veins and in some cases lesser saphenous vein. Their patency rate is lower than arteries. Aspirin protects grafts from occlusion; adding clopidogrel does not improve rates. CABG vs PCI
CABG and percutaneous coronary intervention (PCI) are the two modalities the medical community has to revascularize stenotic lesions of the cardiac arteries. Which one is preferable for each patient is still a matter of debate, but it is clear that in the presence of complex lesions,  significant Left Main Disease and in diabetic patients, CABG seems to offer better results to patients than PCI. Strong indications for CABG also include symptomatic patients and in cases where LV function is impaired. History
Pre-CABG
Surgical interventions aiming relieve angina and prevent death in the early 20th century, were either sympatheticectomy (a cut on the sympathetic chain that supplies the heart, with  disappointing and inconsistent results) or pericardial abrasion (with the hope that adhesions would create significant collateral circulation).French Surgeon Alexis Carrel was the first to anastomose a vessel (a branch of carotid artery) to a native artery in the Heart, in a canine model- but because of technical difficulties the operation could not be reproduced. In mid 20th century, revascularization efforts continued.
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