Angiography and Percutaneous Coronary Intervention for Chronic Total Coronary Occlusion in Daily Practice (from a Large French Registry [CARDIO-ARSIF]).

The aim of this study was to provide contemporary data on chronic total occlusion (CTO) prevalence and management in a large unselected population representing the daily activity of cathlabs, in the greater Paris area, and to compare percutaneous coronary intervention (PCI) features in patients with and without CTO. Procedures were collected from the CARDIO-ARSIF (Agence Régionale de Santé Ile de France) registry from 2012 to 2015. Patients with acute coronary syndrome or previous coronary artery bypass grafting were excluded. CTO features were assessed and PCIs with and without CTO were compared. Among 128,739 included patients, 10,468 (8.1%) had at least 1 CTO. Cardiovascular risk-factor burden was higher in the CTO group, which had more patients with multivessel disease (74% vs 24%) and with referral for interventional management (59% vs 33%). Of all PCIs during the study period, 5.7% involved a CTO; this proportion increased significantly over the study period. PCI success rate was 75.9% in the CTO group. CTO-PCI volume per center did not correlate with CTO-PCI success rate. In conclusion, CTO is common in patients who underwent scheduled coronary angiography. Invasive management is done more often in patients with than without CTO. The success rate of PCI in CTO is not associated with case volume per center.