2002;105:1285 90. 533. Coolong A, Baim DS, Kuntz RE, et al. Saphenous vein graft stenting and major adverse cardiac events: a predictive model derived from a pooled analysis of 3958 patients. Circulation. 2008;117:790 7. 534. Mauri L, Cox D, Hermiller J, et al. The PROXIMAL trial: proximal protection during saphenous vein graft intervention using the Proxis Levine et al 2011 ACCF/AHA/SCAI PCI Guideline e633 Embolic Protection System: a randomized, prospective, multicenter clinical trial. J Am Coll Cardiol. 2007;50:1442 9. 535. Stone GW, Rogers C, Hermiller J, et al. Randomized comparison of distal protection with a filter-based catheter and a balloon occlusion and aspiration system during percutaneous intervention of diseased saphenous vein aorto-coronary bypass grafts. Circulation. 2003;108: 548 53. 536. Hoffmann R, Hamm C, Nienaber CA, et al. Implantation of sirolimus- eluting stents in saphenous vein grafts is associated with high clinical follow-up event rates compared with treatment of native vessels. Coron Artery Dis. 2007;18:559 64. 537. Kunadian B, Dunning J, Vijayalakshmi K, et al. Meta-analysis of ran- domized trials comparing anti-embolic devices with standard PCI for improving myocardial reperfusion in patients with acute myocar-dial infarction. Catheter Cardiovasc Interv. 2007;69:488 96. 538. Cohen M, Urban P, Christenson JT, et al. Intra-aortic balloon counter- pulsation in US and non-US centres: results of the Benchmark Registry. Eur Heart J. 2003;24:1763 70. 539. Stone GW, Ohman EM, Miller MF, et al. Contemporary utilization and outcomes of intra-aortic balloon counterpulsation in acute myocardial infarction: the benchmark registry. J Am Coll Cardiol. 2003;41:1940 5. 540. Briguori C, Sarais C, Pagnotta P, et al. Elective versus provisional intra-aortic balloon pumping in high-risk percutaneous transluminal coronary angioplasty. Am Heart J. 2003;145:700 7. 541. Mishra S, Chu WW, Torguson R, et al. Role of prophylactic intra-aortic balloon pump in high-risk patients undergoing percutaneous coronary intervention. Am J Cardiol. 