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KMID : 0361020200630050228
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Korean Journal of Otolaryngology - Head and Neck Surgery
2020 Volume.63 No. 5 p.228 ~ p.232
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A Case of Rotational Vertebral Artery Syndrome after Vertebral Artery Dissection
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Lee Song-Jae
Byun Ha-Young
Lee Seung-Hwan
Chung Jae-Ho
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Abstract
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Rotational vertebral artery syndrome (RVAS), also called Bow-Hunter syndrome, is characterized by position-aggravated reversible vertebra-basillarischemia. By rotating the head to one side, the mechanical compression of a dominant vertebral artery (VA) in the setting of a hypoplastic contralateral VA might cause tinnitus, vertigo and syncope. A 60-year-old male experienced recurrent tinnitus and vertigo while rotating the head to the right side. Neck CT images showed no abnormal structures near the course of both VAs. In 3-phase dynamic neck CT angiography, a focal vertebral artery dissection was identified at the right C6 transverse foramen. Close observation and anticoagulation therapy were started to prevent thrombo-embolic complications. Herein, we report a case of RVAS with vertebral artery dissection with a review of the literatures.
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KEYWORD
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Vertebral artery, Vertebral artery dissection, Vertigo
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