Technical tips and clinical experience with the Gore Thoracic Branch Endoprosthesis®

Thoracic endovascular aortic repair (TEVAR) has been widely accepted as a treatment option in patients with thoracic aortic aneurysms and dissections who have suitable anatomy. It is estimated that up to 60% of patients treated by TEVARrequire extension of the repair into the distal aortic arch across Ishimaru zone 2. In these patients, coverage of the left subclavian artery (LSA) without revascularization has been associated with increased risk of arm ischemia, stroke, and spinal cord injury. The Gore Thoracic Branch Endoprosthesis (TBE, WLGore, Flagstaff, AZ, USA) is the first off-the-shelf thoracic branch stent-graft approved by the Federal Drug Administration for treatment of distal aortic arch lesions requiring extension of the proximal seal into zone 2. This article summarizes the technical pitfalls and clinical outcomes of the TBE® device in zone 2.