Coronary artery bypass grafting (CABG) has been developed over more than half a century, with improvements mainly in surgical modalities and graft materials. The use of the left internal thoracic artery (LITA) in the 1980s significantly improved the long-term survival of patients after surgery, making it the "gold standard" bypass vessel. Better long-term patency and clinical outcome of bypass vessels using bilateral internal thoracic artery (BITA) or radial artery (RA) for multivessel or even totally arterialized CABG[1]。 However, due to the high technical difficulty and lack of evidence-based medical evidence, second artery bypass vessels or multi-artery CABG other than LITA have not been widespread.