The authors present a modified surgical procedure for extracranial vertebral artery reconstruction.

The left subclavian artery was excluded because left vertebral artery was closed.

The diameter of the vertebral artery was smaller in females than males.

We report a case of symptomatic extracranial vertebral artery stenosis after radiation therapy.

Methods: Stroke due to vertebral artery dissection was conservatively defined by neuroimaging documentation.