Vertigo Flashcards
What are the traits of Peripheral Vertigo?
Dysfunct of Vestibular organs
Asymmetry of input
Sensation of rotation
Nausea, pallor, Diaphoresis
What are the traits of Benign Paroxysmal positional Vertigo?
Not a tumor
Episodic
Position of Head: Turning over
Illusion of motion, Room is spinning
What is the Cause of BPPV?
Otoliths detached from hair cells in utricle
Enter posterior SC canal
How does SCC signal movement of head?
Firing while moving
No firing when stopped
What is the Dix Hallpike maneuver?
Nystagmus Provocative Head pos Latency to Sx after Change in Position Short duration of attack Fatigueability of nystagmus on repeat testing Reverse of nystgmus on upright
What are the traits of Labrinthitis and Vest Neuronitis?
Uni loss of vestibular function Vertigo, N/V and nystagmus Worse w/ head movt. After Resp infections Self limiting
What are the traits of Meniere’s Disease?
Triad: Vertigo, tinnitus, Hearing loss
Relapsing illness
Buildup of endolymph
What is the Tx of Meneire’s disease?
Vestibulr Supressants
What are the Traits of Perilymphatic Fistula?
Traumatic Fistula at round or oval window
After forceful cough, sneeze, scuba, or blow
Self limiting
What are the traits of a Vestibular Schwannoma?
Benign nerve sheath tumor
Gradual compression of Vestibular, cochlear, and facial nerves within bony internal auditory canal
What are the traits of Vestibular Schwannoma?
HEARING LOSS Tinnitus Vertigo ear ache facial palsy
What are the triats of Vertigo in MS?
Diplopia, Facial Paresthesia, weakness, Nystagmus
What is the cause of Vestibular Neuronitis?
Selective Inflammation of the vestibular nerve. Viral infection
What are the clinical Features of Vestibular Neuronitis?
Sudden Vertigo (Overnight)
Fixed horizontal nystagmus- Fast phase toward healthy ear
Frenzel glasses used to observe spon nystagmus
What are the Tx principles of Vertigo?
Meds have combos of Ach, DO, and Histamine Rec Anagonism
Benzos Enhance GABA action (Inh NT in vest system)
