Flashcards in [MND] Vestibular Disorders Deck (21):
Peripheral Vestibular Disorders are caused by?
A disturbance of the vestibular organs in the inner ear
Central Vestibular Disorders are caused by?
A disturbance of the central vestibular pathway
i.e. by brain stem or cerebellar tumours; brain injury/concussion; MS; Migraine; Brainstem or Cerebellar Stroke
What are some examples of peripheral vestibular disorders?
- Benign Paroxysmal Positional Vertigo (BPPV)
- Vestibular Neuritis
What is Benign Paroxysmal Positional Vertigo (BPPV) caused by?
Caused by detachment of the otoconia from the gelatinous membrane of the vestibule (most likely utricle)
'Wandering otoconia' moving into semicircular canals and either floating in the canals or sticking to the capula is known as what disorder?
Benign Paroxysmal Positional Vertigo (BPPV)
(a peripheral vestibular disorder)
What canal is the most commonly affected with Benign Paroxysmal Positional Vertigo (BPPV)?
Is it a central vestibular disorder if the cerebellum and brain stem are affected?
The VOR can assess if it is a ____________ vestibular disorder
Smooth Pursuits, VOR cancellation, saccades can assess if it is a ___________ vestibular disorder
What symptoms would differentiate a central vestibular disorder from peripheral?
ataxia, visual disturbances (i.e. double/blurred vision), dysarthria, headaches, misalignment (head tilt), neurological signs =
In Benign Paroxysmal Positional Vertigo (BPPV) hearing is
What is some instructions for post Benign Paroxysmal Positional Vertigo treatment plan?
- Encourage otoconia to remain in place
- Avoiding at risk positions (i.e. avoid sleeping on affected side, sleeping upright)
What is Habituation?
Reducing symptoms through repetitive exposure to movement and the central processing involved in accommodation
(i.e. 5x reps, 1-2x a day)
Labrynthitis is a vestibular crisis improving over
What are some symptoms the patient will feel with Labrynthitis?
Vertigo, loss of balance, nausea + vomiting, hearing is affected, head movement sensitivity
Vestibular Neuritis is a vestibular crisis improving over
Signs and symptoms of vestibular neuritis
head movement sensitivity, vertigo, nausea, note: hearing is NOT affected
What are some useful outcome measures for vestibular disorders?
- Visual Analogue Scale (VAS)
- Activities Specific Balance Confidence Scale (ABC)
- Motion Sensitivity Quotient (MSQ)
Some signs and symptoms of Benign Paroxysmal Positional Vertigo?
Vertigo, nausea, feeling off balance, motion sensitivity
When and how long are episodes for BBPV lasting?
Acute (sudden onset) with spells lasting typically <1 minute