The impact of bird-beak configuration on aortic remodeling of distal arch pathology after thoracic endovascular aortic repair with the Zenith Pro-Form TX2 thoracic endograft

The authors reviewed their experience with the stainless steel-based graft – Zenith Pro-Form TX2 stent grafts (Cook Medical, Bloomington) – in treating aoertic pathology involving the distal arch.
They compared 19 patients so grafted to 19 patints treated with  Zenith Z-Trak stent grafts.
CTA scans were analyzed at baseline, and then at 1, 6, and 12 months postoperatively. Arch angulation and bird-beak configuration were evaluated according to sealing zones of attachment.
The treated diseases included chronic type B dissections and degenerative aneurysmal disease.
The authors conclude that aortic remodeling after stainless steel stent grafting of aortic pathology is a continuous process with significant aortic arch transformation over zone 2 and left subclavian artery.
In the Pro-Form platform, a preoperative zone 2 angle