Peripheral and Central Vestibular Pathologies Flashcards
symptoms associated with BPPV
vertigo with change in head position
nausea w or w/o vomiting
dysequlibrium
explain the timeline associated with onset of BPPV symptoms and provoking position
typically a 15 sec delay between provoking positional change and onset of symptoms
symptoms of UVH
vertigo
oscillopsia during head movement
dysequilibrium
signs of BPPV
nystagmus with head movement
what does nystagmus duration and direction indicate
specific semicircular canal involved
type of BPPV
signs of UVH
spontaneous nystagmus acutely
postural instability
what is a common cause of UVH onset
virus
trauma
vascular event
what can chronic meniere’s disease result in
UVH
how is meniere’s disease diagnosed
≥ 2 spontaneous attacks of vertigo with each lasting 20 min - 12 hrs
or
sensorineural hearing loss at low-to mid frequency sounds (before during pr after vertigo attack)
or
fluctuating aural symtpoms
how is meniere’s disease treated
reduce/remove salt from diet (2g or less a day)
vestibular rehab
what is the most common cause of perilymphatic fistula? what activities may cause this
rupture to round/oval window causing perilymph to flow into middle ear
deep water diving, head trauma, noise
what is the treatment of perilymphatic fistulas
bedrest
surgical patch
PT post surgery if UVH/dysequilibrium is present
what is a vestibular schwannoma
benign, slow growing tumor arising from Schwann cells on CN8
what CN(s) can be affected by a vestibular schwannoma
compression of CN8 and possibly CN7
symptoms of vestibular schwannoma
hearing loss
tinnitus
vestibular hypofunction
treatment of vestibular schwannoma? are PTs involved?
surgical excision
- will cause a UVH and we can treat post-op
how can MS affect the vestibular system? what lesion could this be considered as?
demyelination of CN8 as it enters brainstem
– central but will present with UVH type s/s
what can a vestibular migrane present similar to
UVH or BPPV
describe symptoms of vestibular migraine
will be episodic, spontaneous
- vertigo / dizziness / imbalance / motion sickness
what can worse vestibular migraines
barometric pressure changes
