Restenosis after percutaneous coronary intervention for coronary chronic total occlusion. The central role of an optimized immediate post-procedural angiographic result

Abstract Background Factors of restenosis after percutaneous coronary intervention (PCI) for chronic total coronary occlusion (CTO) have not been fully explored. In particular, although the last ACC/AHA guidelines on PCI suggest that a minimum diameter stenosis of 10% with an optimal goal of as close to 0% as possible should be the new benchmark for lesions treated by stenting, angiographic success of PCI for CTO remains in the literature most often defined as a Methods Therefore, we assessed by quantitative coronary analysis (QCA) both the immediate post-PCI and 6-month follow-up angiographic results of 170 successfully treated true CTO. Results Post-PCI QCA immediate residual diameter stenosis was p Conclusion Thus, an optimized immediate angiographic result with a minimal diameter stenosis as close to 0% as possible appears to be associated with a lower rate of restenosis after CTO PCI.