Innominate artery reimplantation as a strategic step in lifetime aortic management: a vascular surgeon’s perspective

The management of complex aortic disease has evolved toward a “lifetime management” strategy, where the initial surgical arch repair critically influences the feasibility of future staged interventions. While the left subclavian artery has received significant attention, the strategic role of the innominate artery (IA) as a primary endovascular gateway remains underappreciated. This paper explores how IA reimplantation geometry determines the success of subsequent endovascular procedures. We analyzed the technical requirements for optimal antegrade endovascular access during complex downstream repairs, such as branched and fenestrated endovascular aortic repair (B-FEVAR). Two surgical strategies aimed at optimizing supra-aortic vessel alignment were evaluated: the “arch vessels’ switch” technique using a standard trifurcated graft, and the use of the novel T-NEXT hybrid prosthesis (Terumo Aortic, Vascutek Ltd., Renfrewshire, UK). In currently available frozen elephant trunk (FET) and hybrid arch grafts, the longitudinal arrangement of supra-aortic branches often results in sequential vessel reimplantation patterns that may create acute angulations between the IA and the ascending aorta. Such configurations can impair guidewire and catheter maneuverability, reducing effective transmission of torque and forward force during antegrade navigation toward the descending thoracic and thoracoabdominal aorta. The “arch vessels’ switch” technique, in which the IA is reimplanted onto the distal (3^rd) branch of a standard trifurcated graft, improves coaxial alignment and creates a smoother, more anteriorly directed trajectory for catheters and delivery systems intended for downstream aortic interventions. Similarly, the T-NEXT hybrid prosthesis (Terumo Aortic, Vascutek Ltd.) combines preservation of a longer native ascending aortic segment, potentially facilitating future root or ascending aortic reinterventions with a dedicated transverse 10-mm IA branch that provides a stable and pre-aligned access route. This optimized geometry minimizes abrupt directional changes at the anastomotic level, facilitates device advancement, and enhances support for guidewires, sheaths, and endovascular adjuncts. IA reimplantation should be conceptualized as a strategic maneuver rather than a purely reconstructive step. A multidisciplinary “aortic team” approach is essential to design arch reconstructions that facilitate bidirectional endovascular navigation. By optimizing IA take-off geometry, surgeons can prevent “dead-end” anatomies and ensure that the primary arch repair serves as a durable platform for the patient’s entire therapeutic journey.