Background: Guidelines endorse coronary artery bypass as the preferred revascularization strategy for patients with left main and/or multivessel coronary artery disease (CAD). However, many patients are deemed excessively high risk for surgery after Heart Team evaluation. No prospective studies have examined contemporary treatment patterns, rationale for surgical decision-making, completeness of revascularization with percutaneous coronary intervention (PCI), and outcomes in this high-risk population with advanced CAD.
Methods: We designed the Outcomes of Percutaneous RevascularizaTIon for Management of SUrgically Ineligible Patients with Multivessel or Left Main Coronary Artery Disease (OPTIMUM) registry, a prospective, multicenter study of patients with "surgical anatomy" determined to be at prohibitive risk for bypass surgery. The primary outcome is comparison of observed to predicted 30-day mortality, with secondary outcomes of patient-reported health status and the association between completeness of revascularization and clinical outcomes. Patient characteristics driving surgical risk determinations will be reported, and peri-operative risk will be assessed using validated scoring methods. Angiograms will be assessed by an independent core laboratory, and clinical events will be adjudicated.
Results: Clinical outcomes assessments will include 30-day and 1-year cardiovascular events, health status at 1, 6 and 12-months, and 5-year mortality.
Conclusions: OPTIMUM is the first prospective, multicenter study to examine treatment strategies and outcomes among multivessel CAD patients deemed ineligible for surgical revascularization after Heart Team assessment. This registry will provide unique insights into the clinical decision-making, revascularization practices, safety, effectiveness, and health status outcomes in this high-risk population.
Keywords: Cardiovascular surgery; Coronary artery disease; Quality of life; Revascularization.
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