Branched Thoracic Endovascular Grafts for the Treatment of Thoraco-abdominal Aortic

This study tests a specially branched endovascular (inside the blood vessel) graft device used to treat complex aortic aneurysms — dangerous bulges in the large artery that runs through the chest and abdomen. These aneurysms involve blood vessels that supply vital organs like the kidneys and intestines, making standard surgical repair very risky. This minimally invasive approach aims to fix the aneurysm while preserving blood flow to those organs. You may be eligible if... - You are over 18 years old - You have a thoraco-abdominal aortic aneurysm meeting specific size or growth criteria - You are considered high risk for open surgical repair due to heart, lung, kidney, or other medical problems - You have appropriate blood vessel anatomy for the device - Your life expectancy is greater than 1 year - You have adequate arterial access for device delivery You may NOT be eligible if... - You have an active systemic infection or a mycotic (fungal) aneurysm - You have a known allergy to contrast dye that cannot be treated - You have an absolute contraindication to blood thinners - You have a known allergy to stainless steel, nickel, or gold - You have a history of connective tissue disease such as Marfan or Ehlers-Danlos syndrome - You have had a recent major surgery unrelated to the aneurysm - You have unstable chest pain or hemodynamic instability - You are currently enrolled in another investigational trial Talk to your doctor to see if this trial is right for you.