Aortic Remodeling After Endovascular Management of Type B Aortic Dissection.

Inclusion Criteria: 1. Complicated Stanford type B dissections: * Rupture. * malperfusion (visceral, extremities or spinal cord ischemia). 2. High-risk aortic dissections: * Refractory pain, refractory hypertension or bloody pleural effusion. * High-risk radiographic features (max. aortic diameter \>40mm, false lumen diameter \>22mm, 1ry entry tear \>1cm, entry tear location on the lesser curve and radiographic only malperfusin). 3. Aortic anatomy suitable for stent graft therapy: * Proximal landing zone (diameters between 15 and 42mm, measured form outer wall to outer wall) isn't aneurysmal, dissected or significantly thrombosed. * Proximal landing zone length ≥20mm. * Radius of curvature ≥20mm for aortic arch landing zones. * Arch or distal aortic angulation 45≤ degrees. 4. Compatible Iliac and/or femoral access vessel morphology (diameter and tortousity) that allows endovascular access to the dissection site with the delivery system of the appropriately sized device, with or without the use of either surigcal or endovascular conduit. 5. Age ≥18yrs. 6. Life expectancy \>2yrs Exclusion Criteria: 1. Known hypersensitivity to device component or contraindication to anticoagulation or contrast media. 2. Systemic or local infection that may increase the risk of endovascular graft infection. 3. Subjects with past descending or abdominal aortic interventions. 4. Un-correctable coagulopathy 5. Active vasculitis 6. Inability or refusal to give informed consent by subject or legal representative 7. Subject is unwilling to comply with the follow-up schedule.