Bilateral and Multilevel Vertebral Artery Loop Formation Causing Cervical Radiculopathy: A Case Report and Literature Review

双侧多节段椎动脉环形成引起颈椎神经根病:病例报告及文献综述

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Abstract

We present a case of a 60-year-old man with bilateral and multilevel vertebral artery loop formation (VALF) presenting with chronic cervicobrachialgia and dizziness. Magnetic resonance imaging (MRI) revealed bilateral vertebral artery loops at C4-5 compressing the right C5 nerve root, with computed tomography angiography (CTA) identifying an additional loop at the left V1 segment. The patient's symptoms resolved completely with conservative management over a six-month follow-up period. A literature review comparing similar cases over the past two decades reveals successful conservative and surgical management approaches.

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