Research in Vestibular Science

Case Report

Rotatory Vertebral Artery Syndrome in Foramen Magnum Stenosis: Ileok Jung, Jin-Man Jung, Moon Ho Park; Res Vestib Sci. 2018;17(4):167-169. Published online December 21, 2018; DOI: https://doi.org/10.21790/rvs.2018.17.4.167

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Rotatory vertebral artery syndrome (RVAS) is characterized by recurrent attacks of vertigo, nystagmus, and syncope induced by compression of the vertebral artery during head rotation. A 60-year-old man with atlas vertebrae fracture presented recurrent attacks of positional vertigo. Left-beat, upbeat and count clock-wise torsional nystagmus occurred after lying down and bilateral head roll (HR) showing no latency or fatigue. Magnetic resonance imaging revealed foramen magnum stenosis (FMS) and dominancy of right vertebral artery (VA). The flow of the right VA on transcranial Doppler decreased significantly during left HR. The slower the velocity was, the more the nystagmus was aggravated. RVAS can be evoked by FMS causing compression of the VA. And the nystagmus might be aggravated according to the blood flow insufficiency.

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A Case of Rotational Vertebral Artery Syndrome after Vertebral Artery Dissection
Song Jae Lee, Ha Young Byun, Seung Hwan Lee, Jae Ho Chung
Korean Journal of Otorhinolaryngology-Head and Nec.2020; 63(5): 228. CrossRef

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