Anatomical Feasibility of the Off-the-Shelf G-Branch System for Treatment of Thoracoabdominal Aortic Aneurysms

The G-Branch system demonstrates favorable feasibility for the endovascular treatment of TAAAs, particularly with the aid of other endovascular techniques. The main limitations were stenosed or occlusive renovisceral arteries and accessory renal arteries.Clinical ImpactThe G-Branch system's high anatomical feasibility, especially with the aid of other endovascular techniques, has the potential to change clinical practice in the treatment of thoracoabdominal aortic aneurysms (TAAAs). For clinicians, it offers a more viable off-the-shelf option that can be applied to a large proportion of TAAA patients, expanding the scope of endovascular treatment and providing a more convenient and efficient alternative to traditional open surgery. The innovation behind this study lies in the comprehensive evaluation of the G-Branch system's anatomical feasibility based on a large sample size from a national multicentre clinical trial, which provides valuable insights into its clinical application and helps identify the main limitations that need to be addressed in future device development and clinical practice.