Renovisceral Artery Alterations due to Branched Endovascular Aortic Repair and Respiratory-induced Deformations

The reduction in respiratory-induced deformation of branch take-off angle from pre- to post-bEVAR should reduce the risk of device disengagement and endoleak. The unchanging respiratory-induced end-stent bending, from pre- to post-bEVAR, means that bEVAR maintains native vessel dynamics distal to the bridging stents. This minimizes the risk of tissue irritation due to respiratory cycles, boding well for branch vessel patency. The longer bridging stent paths associated with bEVAR may enable smoother paths subject to less dynamic bending, and potentially lower fatigue risk, compared to fEVAR.