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CANVAS Syndrome

CANVAS is an easy to remember acronym for cerebellar ataxia, neuropathy, and vestibular areflexia. There are only a very few patients reported who have the requisite combination of two rare clinical findings (cerebellar ataxia and vestibular

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Bow Hunter’s Syndrome

Introduction Bow Hunter’s Syndrome (BHS)—also called rotational vertebral artery syndrome—is a rare, treatable cause of dizziness, fainting, and other “posterior circulation” symptoms that appear only when the head is turned or tilted in certain directions. In BHS,

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Unilateral Vestibular Hypofunction

Unilateral Vestibular Hypofunction (UVH) is a condition in which one side of the vestibular system, located in the inner ear, does not function properly. The vestibular system detects head movement, which helps us maintain our

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Superior Semi-Circular Canal Dehiscence

What is Superior Semi-Circular Canal Dehiscence? Vestibular and auditory symptoms and signs can result from a dehiscence (opening) in the bone overlying the superior semicircular canal of the inner ear. This clinical syndrome—superior semicircular canal

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Volunteer Opportunities

Outreach & Education Ambassador Help raise awareness about vestibular disorders in your local and online communities. Sample tasks include creating a blog or vestibular-specific social media channel, distributing VeDA brochures, and reaching out to local,

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Volunteer Policies & Procedures

Thank you for volunteering with VeDA! We want your volunteer experience to be positive and fulfilling. Please contact Community Resource Coordinator, David Morrill, if you have any questions ([email protected]). Recording Your Hours It’s useful for

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Thinking, Memory & Focus

When Dizziness Affects the Mind Vestibular disorders are widely recognized for causing dizziness, vertigo, and imbalance. But what many people don’t realize is that these disorders can also significantly affect the brain—particularly in the areas

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Cerebellar Ataxia & Downbeat Nystagmus

Downbeat nystagmus (DBN) is a distinctive ocular motor finding most commonly associated with cerebellar or brainstem dysfunction—particularly involving the flocculus, paraflocculus, or vestibulocerebellum. Patients typically report oscillopsia, imbalance, and unsteadiness that worsens with downgaze, head

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How Do I Know If I Have A Vestibular Disorder?

Dizziness is Common Dizziness is a common problem that affects nearly 37 million individuals in the US each year.  Approximately 2 million of these individuals initially seek care at an emergency department.  Many conditions that

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