Cervical carotid to vertebral artery high-flow interposition graft bypass serves as an extracranial communicating pathway between anterior and posterior circulation for vertebrobasilar lesions.

ABSTRACT:

Purpose

Conventional surgical techniques for posterior circulation bypass have certain limitations, necessitating innovative approaches. This study evaluates the indications and outcomes of cervical carotid-to-V2 vertebral artery bypass-functioning as an extracranial "posterior communicating artery"-in the treatment of vertebrobasilar lesions.

Methods

The V2 bypass procedure via a cervical anterolateral approach was applied in cases of (1) bilateral vertebral artery (VA) occlusions (Type I), (2) subclavian artery (SBA) occlusion with steal phenomenon (Type II), and (3) compensated posterior circulation aneurysm (Type III).

Results

All eight patients exhibited patent bypass grafts. In seven cases with anterior-to-posterior bypass flow, the carotid artery supplied the e

SUBMITTER: Wang X 

PROVIDER: S-EPMC12662951 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature