Vestibular System Flashcards
Impairments of the vestibular system based on the inner ear are a sign for…
Impairments of the peripheral nervous System
What is a corrective Saccades?
A corrective bounce of the eye (non-repeating)
Menier’s Disease is caused by?
Over accumulation of endolymph
Menier’s Disease symptoms are?
Vertigo for hours/days (permanent)
“Fullness of ear”
Tinnitus
Treatment for Menier’s Disease includes?
Reducing salt
Diurrhetics/ fluid control
Compensatory strategies
BPPV (Benign Paroxysmal Positional Vertigo) Symptoms are?
Transient vertigo (Positional)
Nystagmus
What causes BPPV?
Abnormal Otoconia positioning in Semicircular Canals
A torsional Nystagmus points to impairment of which part of the NS?
Peripheral NS
A straight upbeat Nystagmus points to impairment of which part of the NS
Central NS
What Tests exist for BPPV?
Dix Hallpike
VOR /Head Impulse Test
Roll Test
Vertebral Artery Test
What is Canalithiasis?
Otoconia free in endolymph
-> causes delayed (30sec) onset vertigo
Fluctuating intensity gradually worse, then gradually better
What is Cupulolothiasis?
Otoconia adhere to Cupula
-> immediate onset of vertigo
-persistent / >1min or with position
What are symptoms of Peripheral/Vestibular NS involvement?
Resolves shortly (min->h)
Abnormal VOR
Classic torsional Nystagmus
Normal smooth pursuit-saccade
What are symptoms of Central NS involvement?
Diplopia >2weeks
Skew deviation
Pure vertical upbeat Nystagmus
Hearing loss
Oscillating Nystagmus
Abnormal pursuit-saccade
Which impairments are tested on CTSIB (SE sorry Organization Test)
Visual Dependency
Somato-sensory Dependency
Vestibular dysfunction
Sensory selection problems
