Various choices of reconstructing the left subclavicular artery to extend the proximal landing zone thoracic endovascular aortic repair

Thoracic endovascular aortic repair (TEVAR) has become the preferred treatment for Stanford type B aortic dissection. Covered the left subclavian artery (LSA) directly may cause corresponding complications in Stanford type B aortic dissection with unfavourable proximal landing zone. TEVAR can be successfully implemented by reconstructing LSA to expand the proximal landing zone. Currently, the methods of reconstructing LSA mainly include hybridization technology (carotid-subclavian artery transposition), chimney technology (including branch stent technology) and fenestration (or slot technology), etc. These techniques are all valid for aortic dissection that needs to reconstructing LSA. The choices and applications of these techniques should follow the individualized principles.