Longitudinal movement of all or part of the device for a distance ≥ 10 mm, as confirmed by CTA scan, relative to anatomical landmarks and device positioning at the first post-operative CTA scan.

No flow or contrast detected through the implanted aortic and/or branch component (for branched devices) confirmed with imaging and/or direct observation.

Stroke is the acute onset of symptoms consistent with focal or multifocal Central Nervous System (CNS) injury caused by vascular blockage resulting in ischemia or vascular rupture resulting in hemorrhage, that:

• Persists for > 24 hours or until death -or-
• Symptoms lasting < 24 hours, with pathology or neuroimaging confirmation of CNS infarction

New onset spinal cord injury rendering a subject non-ambulatory within 30 days of the index procedure

New onset spinal cord injury causing a minor motor deficit of the lower extremities within 30 days of the index procedure

New onset sustained renal failure identified within 30 days of the index procedure, combined with requiring dialysis for > 4 weeks

New onset of a decrease in eGFR > 30% following treatment when compared to baseline eGFR.

Defined as any of the following:

• Wire fractures, including stents, hooks, or barbs
• Stent kinking: Narrowing of the stent graft associated with demonstrable angulation in any of the stent components, with demonstrable flow
• Disruption/tears in the graft component of the stent graft Stent compression or invagination: Transient or permanent stent-graft collapse following complete device deployment, resulting in an overall reduction in the vessel luminal diameter

Additional surgical or interventional procedure related to the treated disease / index lesion, the registry device, or to the treatment / procedure.

This may include surgical or interventional treatment for endoleaks, access site(s) complications, disease progression (including interventions to address issues related to non-treated area of the index lesion, such as bare stent implantation to address bowel ischemia associated with aortic dissection), spinal drains for Spinal Cord Injury (SCI) management, or conversion to open surgery.

A new arterial tear either caused by a stent graft, natural disease progression or iatrogenic injury from endovascular manipulation. This can include the propagation, or extension, of a previous dissection that was not present at the time of initial presentation.

Status of the false lumen within the segment of the aorta initially treated with an endovascular stent graft:

• Patent: Flow present throughout the entire aortic false lumen (absence of thrombus) on arterial-phase or delayed contrast-enhanced imaging.
• Partial thrombosis: Thrombus or clot within the aortic false lumen but with a residual patent flow channel on arterial-phase or delayed contrast-enhanced imaging.
• Complete thrombosis: Complete thrombosis of the aortic false lumen on arterial- and delayed-phase imaging.

Status of the false lumen outside of the segment of the aorta initially treated with an endovascular stent graft:

• Patent: Flow present throughout the entire aortic false lumen (absence of thrombus) on arterial-phase or delayed contrast-enhanced imaging.
• Partial thrombosis: Thrombus or clot within the aortic false lumen but with a residual patent flow channel on arterial-phase or delayed contrast-enhanced imaging.
• Complete thrombosis: Complete thrombosis of the aortic false lumen on arterial- and delayed-phase imaging.

Flow into the false lumen via:

• Type IA entry flow: flow between the proximal endograft and aortic wall allowing systemic pressure antegrade flow into the primary entry tear and proximal false lumen
• Type IB entry flow: distal entry tear adjacent to endograft due to septal fenestration or a new intimal tear at the distal aspect of the stent graft (dSINE) allowing systemic pressure direct flow into the false lumen
• Type II entry flow: retrograde entry flow through arch vessel branches (innominate, carotid, subclavian) or thoracic bronchial and intercostal arteries into the false lumen
• Type R entry flow: antegrade entry flow from the true lumen into the false lumen through distal branch fenestrations (uncovered intercostal arteries, visceral or renal arteries, lumbar arteries, iliac branches) or septal fenestrations (excluding SINE)