Clinical outcomes of endovascular treatment for chronic aortic occlusion: a retrospective multicentre registry: EVT for chronic aortic occlusion.

AIMS: The aim of this study was to evaluate the clinical outcomes of endovascular treatment (EVT) for chronic aortic occlusion (CAO) using multicentre registry data. METHODS AND RESULTS: From April 2003 to December 2015, data on 73 consecutive patients (55 men and 18 women; aged 70.7±12.2 years) who underwent EVT for CAO were collected retrospectively from 15 centres in Japan. The primary endpoint was the primary patency at 12 months after EVT. Secondary endpoints were procedural success and periprocedural complication rates. We analysed 67 patients who underwent complete endovascular revascularisation after 2007. Initial procedural success was achieved in 63 cases (94.0%). Complications occurred in three patients (4.5%) (stroke, n=1; distal embolism, n=1; access-site haematoma requiring blood transfusion, n=1). In patients after successful EVT (n=63), the primary and secondary patency rates at 12 months were 90.7% and 97.7%, respectively. During a mean follow-up period of 17.8 months, restenosis/re-occlusion was observed in eight patients (12.7%). CONCLUSIONS: EVT for CAO could be performed safely with a high procedural success rate. The short-term clinical outcome was acceptable despite lesion complexity.