The origin of the vertebral artery (VA) from the left subclavian (LSA) is variable and must be considered when proximal ligation or embolization is performed post thoracic endovascular aortic repair (TEVAR) and extra-anatomical bypass (EAB). A retrospective study was conducted to understand the patency of the LSA and VAs after TEVAR and the relationship of the EAB to the LSA.

中文翻译：

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TEVAR 左锁骨下动脉在主动脉弓病理学中的命运

来自左锁骨下 (LSA) 的椎动脉 (VA) 的起源是可变的，在胸主动脉血管内修复 (TEVAR) 和解剖外旁路 (EAB) 后进行近端结扎或栓塞时必须考虑。一项回顾性研究旨在了解 TEVAR 后 LSA 和 VA 的通畅性以及 EAB 与 LSA 的关系。