aneurysm of the distal aortic arch (Left). Completion angiogram
after TEVAR for an 8-cm saccular aneurysm of the distal
aortic arch with a Bolton Relay aortic stent-graft with partial
coverage of the LSCA (Right).
Ahead of the Curve
Early efforts in addressing endovascular solutions for the thoracic aorta focused on fundamentals learned from EVAR that included access, exclusion of the aneurysm, and durability. Through the evolution of TEVAR, physicians and industry have been focused on improving device deliverability and conformability, while reducing the risk of endoleak. The Relay®Plus thoracic stent-graft system (Bolton Medical) was a later entrant into the TEVAR market, but this system embodies features that will help us address the challenges we face when treating our patients with thoracic aneurysms.