Balloon‐Assisted Subintimal Entry‐Facilitated Tip Detection‐Antegrade Dissection Reentry Technique: A Novel Antegrade Approach for Chronic Total Occlusion

ABSTRACT Percutaneous coronary intervention (PCI) for chronic total occlusion (CTO) lesions with ambiguous proximal cap remains challenging. We present a successful CTO‐PCI case involving proximal cap ambiguity, treated by combining balloon‐assisted subintimal entry (BASE) and tip‐detection antegrade dissection and re‐entry (TD‐ADR) techniques. The BASE‐facilitated TD‐ADR technique is a novel antegrade CTO‐PCI approach and has the potential to enhance the safety and efficacy of antegrade CTO‐PCI procedures.