Vascular reconstruction related to V3 segment of extracranial vertebral artery

Abstract

Two major traditional modalities of posterior circulation revascularization are extracranial⁃intracranial low⁃flow bypass with donor arteries from anterior circulation and supply mainly for local perforators and distal vascular territories. V3 bypass characterized by profound and simultaneous vascular reconstruction of posterior circulation, achieved by intracranial⁃intracranial or multiple bypasses in conjunction with skull base techniques. These posterior circulation vessels not only play a pivotal role in bypass modality design for vertebrobasilar lesions, but also be implemented to revascularize the anterior circulation. In this article, we review the exposure techniques of the important related vessels, designed philosophy, indications and surgical techniques of the available innovative modalities of V3 bypass.

doi：10.3969/j.issn.1672⁃6731.2022.05.002