Calculation of the STS and SYNTAX scores is reasonable in patients with unprotected left main and complex CAD.949,950,953 957 (Level of Evidence: B) One protocol used in RCTs950 952,958 often involves a multi- disciplinary approach referred to as the Heart Team. Com- posed of an interventional cardiologist and a cardiac surgeon, the Heart Team 1) reviews the patient s medical condition and coronary anatomy, 2) determines that PCI and/or CABG are technically feasible and reasonable, and 3) discusses revascularization options with the patient before a treatment strategy is selected. Support for using a Heart Team approach comes from reports that patients with complex CAD referred specifically for PCI or CABG in concurrent trial registries have lower mortality rates than those randomly assigned to PCI or CABG in controlled trials.951,952 The SIHD, PCI, and CABG guideline writing committees endorse a Heart Team approach in patients with unprotected left main CAD and/or complex CAD in whom the optimal revascularization strategy is not straightforward. A collabor- ative assessment of revascularization options, or the decision to treat with GDMT without revascularization, involving an interventional cardiologist, a cardiac surgeon, and (often) the patient s general cardiologist, followed by discussion with the patient about treatment options, is optimal. Particularly in patients with SIHD and unprotected left main and/or complex CAD for whom a revascularization strategy is not straight- forward, an approach has been endorsed that involves termi- nating 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. Because the STS score and the SYNTAX score Table 18. 