Abstract:Exertional vertebrobasilar insufficiency (VBI) secondary to the non-atherosclerotic cause is uncommon. We herein report the case of a patient who developed exertional VBI long after extracranial right vertebral artery (VA) dissection. At the time of dissection, the right VA was completely occluded near its origin, but the distal flow was compensated by the collateral flow from the right deep cervical artery (DCA). After conservative management, the patient was discharged without neurologic deficit. Six years l… Show more
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