Journal of neurosurgery. Case lessons · 2024
Vestibular paroxysmia caused by a subarcuate artery: illustrative case.
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Sakaji Kensuke, Omodaka Shunsuke, Kanamori Masayuki, Takai Shunsuke, Sawada Akari, Suzuki Jun, Katori Yukio, Endo Hidenori
Аннотация
BACKGROUND: Vestibular paroxysmia is defined by spontaneous, recurrent, short, paroxysmal episodes of vertigo. The authors present a case of vestibular paroxysmia caused by neurovascular compression of the vestibulocochlear nerve due to the subarcuate artery, which was successfully treated with microvascular decompression.
OBSERVATIONS: A 46-year-old man first experienced vertigo attacks 5 years earlier. The attacks became more frequent, and left-sided tinnitus developed over the past 4 months, prompting a referral to our hospital. Carbamazepine treatment alleviated symptoms but had to be discontinued due to rash. Brain magnetic resonance imaging and angiography revealed that the left anterior inferior cerebellar artery was pressing on the cisternal segment of the left vestibulocochlear nerve. The authors diagnosed vestibular paroxysmia caused by neurovascular compression and performed microvascular decompression. During the operation, a subarcuate artery was identified as the offending vessel, with a prominent indentation on the vestibulocochlear nerve. The vertigo was completely relieved following surgery.
LESSONS: Neurovascular compression of the vestibulocochlear nerve by the subarcuate artery can result in vestibular paroxysmia. https://thejns.org/doi/abs/10.3171/CASE24239.
OBSERVATIONS: A 46-year-old man first experienced vertigo attacks 5 years earlier. The attacks became more frequent, and left-sided tinnitus developed over the past 4 months, prompting a referral to our hospital. Carbamazepine treatment alleviated symptoms but had to be discontinued due to rash. Brain magnetic resonance imaging and angiography revealed that the left anterior inferior cerebellar artery was pressing on the cisternal segment of the left vestibulocochlear nerve. The authors diagnosed vestibular paroxysmia caused by neurovascular compression and performed microvascular decompression. During the operation, a subarcuate artery was identified as the offending vessel, with a prominent indentation on the vestibulocochlear nerve. The vertigo was completely relieved following surgery.
LESSONS: Neurovascular compression of the vestibulocochlear nerve by the subarcuate artery can result in vestibular paroxysmia. https://thejns.org/doi/abs/10.3171/CASE24239.