NM Vestibular Disorders Flashcards
Sensation of lightheadedness, giddiness, faintness, increased falls risk
Dizziness
Sensation of moving around in space or having objects move around person (tends to come in attacks)
Vertigo
Visual changes with vestibular disorders (2)
Nystagmus
Blurred vision
What is nystagmus?
Involuntary, cyclical movements of eyeball (horizontal, rotary)
What is blurred vision usually caused by?
Gaze instability secondary to VOR dysfunction
Dysequilibrium or postural instability: ______ dysfunction, ataxia, gait disturbances, increased risk of falls
vestibular spinal reflex (VSR)
Etiology of unilateral vestibular disorders (UVD) (5)
- Trauma
- Vestibular neuronitis, labyrinthitis
- Ménière’s disease
- BPPV
- Tumor
Vestibular symptoms seen in _____ % of pts with TBI
30-65%
Vestibular neuronitis or labyrinthitis is an acute infection with prolonged attack of sx, persisting ____ to ____, caused by ___ or ____ infection
Several days to weeks
Bacterial or viral
Ménière’s disease is recurrent and usually _____ vestibular disease; episodic attacks may last minutes to hours with severe symptoms. Usually associated with ____, deafness, sensation of ________ in ear. Unknown etiology, but usually edema of _____ ____ consistent finding.
Progressive
Tinnitus
Fullness/pressure
Membranous labyrinth
BPPV is brief attacks of vertigo and nystagmus that occur with ____ ____. May be related to degenerative process, mechanical impairment of ___ ___ ___.
Head positions
Peripheral vestibular system
Etiology of Bilateral Vestibular Disorders (BVD) (3)
- Toxicity
- Bilateral infection
- Vestibular neuropathy
B/L infection leading to BVD include:
Neuritis
Meningitis
Vestibular neuropathy includes:
Ostoclerosis (Paget’s disease)
Repetitive movement and positions that provoke dizziness/vertigo
habituation training
