2008;51:538 45. 312. Caracciolo EA, Davis KB, Sopko G, et al. Comparison of surgical and medical group survival in patients with left main coronary artery disease: long-term CASS experience. Circulation. 1995;91:2325 34. 313. Chaitman BR, Fisher LD, Bourassa MG, et al. Effect of coronary bypass surgery on survival patterns in subsets of patients with left main coronary artery disease: report of the Collaborative Study in Coronary Artery Surgery (CASS). Am J Cardiol. 1981;48:765 77. 314. Dzavik V, Ghali WA, Norris C, et al. Long-term survival in 11 661 patients with multivessel coronary artery disease in the era of stenting: a report from the Alberta Provincial Project for Outcome Assessment in Coronary Heart Disease (APPROACH) Investigators. Am Heart J. 2001;142:119 26. 315. Takaro T, Hultgren HN, Lipton MJ, et al. The VA cooperative ran- domized study of surgery for coronary arterial occlusive disease II. Subgroup with significant left main lesions. Circulation. 1976;54: III107 17. 316. Takaro T, Peduzzi P, Detre KM, et al. Survival in subgroups of patients with left main coronary artery disease: Veterans Administration Coop- erative Study of Surgery for Coronary Arterial Occlusive Disease. Circulation. 1982;66:14 22. 317. Taylor HA, Deumite NJ, Chaitman BR, et al. Asymptomatic left main coronary artery disease in the Coronary Artery Surgery Study (CASS) registry. Circulation. 1989;79:1171 9. 318. Yusuf S, Zucker D, Peduzzi P, et al. Effect of coronary artery bypass graft surgery on survival: overview of 10 year results from ran- domised trials by the Coronary Artery Bypass Graft Surgery Trialists Collaboration. Lancet. 1994;344:563 70. 319. Capodanno D, Caggegi A, Miano M, et al. Global risk classification and clinical SYNTAX (Synergy between Percutaneous Coronary Inter- vention with TAXUS and Cardiac Surgery) score in patients undergoing percutaneous or surgical left main revascularization. J Am Coll Cardiol Intv. 2011;4:287 97. 320. 