The interictal symptom burden in vestibular migraine—a condition in need of recognition

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Vestibular migraine (VM) includes persistent vestibular symptoms during the interictal phase, extending beyond discrete migraine attacks.
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Common interictal symptoms of VM include head-motion intolerance, visually induced dizziness, and increased motion sickness susceptibility.
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Altered central vestibular sensory and oculomotor networks, rather than peripheral vestibular disorders, underlie interictal symptoms in VM.
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Longitudinal studies show that interictal vestibular symptoms may increase over time, even as the frequency of VM attacks decreases.
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The review proposes preliminary diagnostic criteria for chronic vestibular migraine based on symptom frequency and persistence.

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