TCT-372 Pooled analysis of Collateral Channel type and morphology during Retrograde chronic total occlusion Percutaneous Coronary Intervention.

Retrograde chronic total occlusion (CTO) percutaneous coronary intervention PCI has become the cornerstone of CTO PCI. Interventional collateral channel (CC) selection and crossing remain the essential component for retrograde CTO PCI. There is limited data on how to select the CC and the