Differences in patients and lesion and procedure characteristics depending on the age of the coronary chronic total occlusion

摘要

Introduction Whether duration of chronic total occlusion (CTO) affects lesion and procedural characteristics remains largely unknown. Aim To investigate whether CTO duration influences lesion characteristics and revascularization success. Material and methods EuroCTO Registry data on patients who had CTO percutaneous coronary intervention between January 2015 and April 2017 were analyzed. Three groups were created based on occlusion age: 3 to 6 months (n = 1415), 7 to 12 months (n = 973), 12 months (n = 1656). Results Patients with greater CTO duration were older (63.0 (56.0–70.0); 63.0 (56.0–71.0); 66.0 (59.0–73.0) years respectively; p 20 mm (OR 1.77; 95% CI 1.49–2.10; p Conclusions Coronary artery CTO duration is associated with greater extent of calcification, lesion length, development of collateral circulation and, most importantly, with lower procedural success.