Dizziness Flashcards
Commonest cause of veritgo
Benign postional paroxysmal vertigo
What are the vestibular end-organs?
Ampulla of lateral, posteror and superior semi-circular canals.
Macula of utricle and saccule.
Nystagmus is a sign of what
Vestibular pathology
BPPV will cause vertigo on what
Looking up, getting up from bed.
What is the cause of BPPV?
What is the pathophysiology?
Head trauma, hear surgery.
Otolith material from utricle displaced into the semi-circular canals (often posterior SCC).
How long does BPPV last? Is it associated with hearing loss?
Episodes last a few seconds to minutes.
No associated hearing loss or tinnitus.
Hallpike’s Test positive is indicative of what
BPPV
Vestibular neronitis veritgo lasts how long
Days
Is vestibular neuronitis a cause of tinnitus / hearing loss?
No - think of this as a pure balance (vestibule) issue.
Vestibular neruonitis is often caused by what
Viral infection
Labyrinthis vertigo is how long
Days
How is labyrinthitis differentiated from vestibular neuronitis?
Labyrinthitis is a cause of hearing loss / tinnitus and vertigo, vestibular neuronitis just causes vertigo with no hearing loss/ tinnitus.
Labyrinthitis is often caused by what
Viral infection
How are vestibular neuronitis/ labyrinthitis treated?
Self-limiting (supportive)
Cause of Meniere’s Disease
Unknown
