Novel chimney balloon technique to safeguard cerebral blood flow during total endovascular aortic arch repair

During endovascular total aortic arch repair by in situ fenestration, extra procedures are needed to sustain cerebral blood fl ow when targeting all three supra-aortic branches. Recently, our group successfully interposed a chimney balloon between the greater curvature of the aortic arch and an aortic stent to safeguard cerebral blood fl ow during total endovascular aortic arch repair. (J Vasc Surg Cases Innov Tech 2024;10:101489.)