Flashcards in Otology Deck (22):
What is tinnitus?
Any perceived sound that does not have an external stimulus
What is the pathology of tinnitus?
No directly treatable pathology in the majority of cases but hearing loss and stress are important contributing factors
What is the differential diagnosis for vertigo?
Benign postural vertigo
What is benign postural vertigo?
Dislodged otoconia in semicircular canals
What are the key features of benign postural vertigo?
Vertigo (dizziness) precipitated by certain movements lasting a few seconds
No associated symptoms
What is the test for benign postural vertigo?
What is the treatment for BPV?
What is the pathophysiology of Menieres disease?
Endolymphatic hydros (overproduction)
What are the clinical features of Menieres Disease?
Spontaneous vertigo, Unilateral hearing loss
Fluctuating, progressive hearing loss
Frequency: every few days/weeks/ months
What is the treatment for Meniere's Disease?
What is the pathology of vestibular neuritis/labyrinthitis ?
Reactivation of latent HSV infection of vestibular ganglion
What are the clinical features of labyrinthitis?
Spontaneous vertigo with no associated symptoms
Frequency: a few episodes
What are the treatments for labyrinthitis?
Acute - vestibular sedatives
Chronic - vestibular rehabilitation
What investigations are available to test auditory range and tympanic membrane?
Pure tone audiogram
- Type A - normal
- Type B - immobile tympanic membrane
- Type C - middle ear low pressure
What disorders may occur in the outer ear?
What can otitis externa be a sign of?
Internal auricular malignancy
What disorders may occur in the middle ear?
Otitis media with effusion
Chronic supperative otitis media
What can cause chronic supperative otitis media?
2. Perforated tympanic membrane
What complications may arise from chronic supperative otitis media?
What disorders may occur in the inner ear?
Prebyacusis (age related hearing loss)
Noise induced hearing loss
What is facial plasy?
Lower motor neurone facial weakness