Total Debranching Plus Antegrade Thoracic Endovascular Aortic Repair without Side Clamping in a Patient with Arch Aneurysm and Ascending Aorta Calcification.

A high-risk patient with aortic arch aneurysm, associated with severe calcification of the ascending aorta and iliac arteries, was treated with total debranching and antegrade thoracic endovascular aortic repair (TEVAR) via the ascending aorta. Proximal anastomosis for a triple-branched graft to the ascending aorta was performed without side clamping using the "real chimney technique." After bypassing the supra-aortic branches, a TEVAR was performed in an antegrade fashion through the ascending aorta. This case suggests that the approaches mentioned above should be considered in patients with arch aneurysms and severe calcified degeneration.