What is the recommendation for revascularization to improve survival for patients with significant left main coronary artery stenosis?
CABG to improve survival is recommended for patients with significant (>50% diameter stenosis) left main coronary artery stenosis (Level of Evidence: B). Particularly in patients with SIHD and unprotected left main and/or complex CAD for whom a revascularization strategy is not straightforward, an approach has been endorsed that involves terminating the procedure after diagnostic coronary angiography is completed; this allows a thorough discussion and affords both the interventional cardiologist and cardiac surgeon the opportunity to discuss revascularization options with the patient.