Multivessel and Left Main Disease For several decades, coronary-artery bypass grafting (CABG) has been regarded as the treatment of choice for patients with multivessel and unprotected left main coronary artery (LMCA) disease. However, because of marked advancements in techniques of percutaneous coronary intervention (PCI) and CABG as well as adjunctive pharmacologic therapy, a new evaluation and review of current indications for optimal revascularization therapy for multivessel and LMCA disease may be required to determine the standard of care for these atients.......