Outcomes of Chronic Total Occlusion Percutaneous Coronary Intervention in Patients With Prior Bypass Surgery.

Coronary artery bypass graft surgery (CABG) is the preferred revascularization modality in patients with highly complex anatomy. However, the atherosclerosis process is accelerated after CABG, leading to development of a chronic total occlusion (CTO) in up to 46% of the bypassed native arteries ([1