Does Percutaneous Coronary Interventions of Coronary Chronic Total Occlusions to Patients with Prior Coronary Ar- tery Bypass Graft Surgery Have Poorer Pocedural Outcome?

Regardless of operator expertise and the development of novel interventional devices, Percutaneous Coronary Intervention (PCI) for Chronic Total Occlusion (CTO) is still challenging, but has contributed to higher procedural success rates in the current era of rapid change[1,2]. Previous studies indicated that a history of Coronary Artery Bypass Graft Surgery (CABG) impacts the procedure success rate of PCI for CTO[3-6]. However, clinical outcomes associated with CTO-PCI in a native artery in patients with prior CABG have not been elucidated.