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MENIERE'S DISEASE (characterised by (Rotational vertigo (assessed by),…
MENIERE'S DISEASE
is
disorder of the inner ear
that causes
that can develop
at any age
mostly unilateral
caused by
Endolymphatic hydrops
due to
Disturbed function of the endolymphatic duct and sac
Mechanical obstruction of the structures
Altered anatomy in the temporal bone
assessed by
PTA
Unilateral HL
SNHL
Vestibular test
such as
Electronystagmography (ENG)
spontaneous nystagmus
Caloric test
Abnormal findings
Vestibular-evoked myogenic potentials (VEMP)
cVEMP
Abnormal cVEMP amplitude
oVEMP
Increased oVEMP
Electrocochleography
enlarged summating potentials
vHIT
VHIT is normal
Immitance
Type A tympanogram
presence of reflex at normal HLs and reduced sensation levels
treated by
Reduced-sodium diet
helps to
control water retention
reduces
inner ear fluid pressure
Medication
such as
gentamicin
80% effective at control of vertigo
diazepam
dimenhydrinate
lorazepam
promethazine
meclizine hydrochloride
Vestibular rehabilitation therapy (VRT)
helps with the
imbalance
retrains
the ability of the body
brain to process balance information
Surgery
such as
Endolymphatic sac shunt surgery
Vestibular nerve sectioning
Cochleosacculotomy
Intratympanic gentamicin injection
destroys
vestibular tissue with injections into the ear of the aminoglycoside antibiotic (gentamicin)
used with
less risk of hearing loss and peristent imbalance
characterised by
Ear fullness
managed by
Rotational vertigo
assessed by
Nausea or Vomit
Fluctuating HL
Tinnitus
Postural imbalance
Nystagmus
Metabolic disturbances
give rise to
Various infections
Trauma
Hormonal imbalance