sudden sensorineural hearing loss Flashcards
1
Q
defined as
A
hearing loss over < 72hrs
unexplained by other causes
2
Q
features
A
hearing loss over < 72hrs
most often unilateral
can be permanent or resolve over days/weeks
3
Q
conductive causes of rapid onset hearing loss (NOT SSNHL)
A
ear wax infection - otitis media/externa middle ear effusion E tube dysfunction perforated TM
4
Q
SSNHL causes
A
90% idiopathic infection - meningitis, HI, mumps Meienre's disease ototoxic medications MS migraine stroke acoustic neuroma cogan's syndrome
5
Q
cogan’s syndrome
A
autoimmune condition causing inflammation of eyes and inner ear
6
Q
Ix
A
audiometry
MRI or CT
7
Q
what audiometry result is needed to establish diagnosis
A
loss of at least 30 decibels in 3 consecutive frequencies
8
Q
Mx
A
immediate ENT referral for assessment within 24hrs
Rx underlying cause
steroids if idiopathic
