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Key Points Chronic angina is a growing worldwide problem with significant economic and societal costs. By reducing the ischemic burden, percutaneous coronary revascularization provides important clinical benefit in patients with established obstructive coronary artery disease (CAD). The foremost effect is…

Open full size image Introduction Despite remarkable advances in the procedural and clinical outcomes of percutaneous revascularization, chronically occluded coronary arteries represent persistent technical challenges and unresolved clinical dilemmas in interventional cardiology. Although a coronary chronic total occlusion (CTO) is…