Menieres Disease Flashcards
1
Q
def
A
an auditory disease characterised by episodic sudden onset vertigo, tinnitus, and unilateral fluctuating hearing loss
2
Q
aetiology
A
1 idiopathic
2 secondary causes such as allergic responses (especially to food), syphilis, hypothyroidism, trauma
these factors lead to disturbed homoestasis of endolymph (fluid within the inner ear)
3
Q
epi
A
common in adulthood
4
Q
history
A
episodic sudden onset vertigo, tinnitus and hearing loss aural fullness (sensation of fullness of increased pressure in the ears)
5
Q
investigations
A
no specific test will confirm diagnosis 1 air-bone conduction -unilateral sensorineual hearing loss -air and bone conduction are equal 2 speech audiometry -no abnormality detected on speech recognition threshold
6
Q
what is menieres disease
A
idiopathic cause
7
Q
what is menieres syndrome
A
secondary to known inner-ear disorders
8
Q
risk factors
A
recent viral infection genetic predisposition (family history)
9
Q
examination
A
positive rombergs test
10
Q
what does equal air and bone conduction indicate
A
underlying pathology is in the cochlea or auditory nerve
