Ear disease Flashcards

1
Q

What are the 6 symptoms of ear disease?

A
Deafness 
Discomfort 
Discharge 
Dizziness
Din Din (tinnitus) 
Defective movement of face
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2
Q

What is conductive hearing loss?

A

Issue with ear canala. drum or middle ear where sound is just not getting in

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3
Q

Examples of causes of conductive deafness

A
Ear wax 
Otitis media 
Otitis Externa 
Barotrauma 
Otosclerosis 
Cholesteatoma
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4
Q

What is sensorineural hearing loss?

A

Can be sensory (cochlear) or neural (acoutstic nerve) - sound is getting in but not being sensed

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5
Q

What is central deafness?

A

If all ear function are working well deafness an be caused by brain issues e.g. stroke

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6
Q

What is the most common reason for earache in adults?

A

Referred pain

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7
Q

What nerves can cause ear ache?

A

CN V, VII, IX, X

C2, C3

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8
Q

What is otorrhoea?

A

Discharge from the ear

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9
Q

How is the pain described in AOM?

A

Crescendo pain

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10
Q

Causes of otorrhoea?

A

AOM
COM
CSF

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11
Q

How is tinnitus first line treated?

A

Adaptation therapy

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12
Q

Which condition is often seen in keen swimmers?

A

Otitis Externa

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13
Q

What are the most common bacterial causes of OE?

A

Haem influenzae

Stre penumonaie

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14
Q

What are the 2 most common causes of fungal OE?

A

Aspergillus

Candida

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15
Q

What is the treatment of otitis externa?

A

Suction cleaning

Antifungals (clotrimoxazole)

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16
Q

First line antibiotic in OM

A

Amoxicillin (clarythromycin)

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17
Q

What is a rare but serious complication of AOM?

A

Intracranial complications

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18
Q

What is glue ear?

A

Fluid behind intact ear drum in the abscence of overt infection

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19
Q

Management of OME

A

Watch for up to 3 months if not put in ventilation tube to drain

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20
Q

What is chronic OM?

A

Perforation that hasn’t healed

21
Q

Treatment of chronic OM

A

Treat with antibiotics to dry up then operate to close it

22
Q

What is a cholesteatoma?

A

Squamous epithelium in middle ear

23
Q

Causes of cholesteatoma?

A

Can go through perforation

Ear drum retracted back

24
Q

What is the most common investigation of the ear?

A

CT scan of temporal bone

25
What is vertigo?
A sensation of movement, usually spinning
26
What is the clinical relevance of the VOR?
Nystagmus will be observed in vestibular pathologies | Drection of nystagmus will depend on involved structures
27
What are important to ask in a history of a dizzy patient?
``` Triggers? Time course? Associated symptoms? Precipitators? Alleviating factors? Medication? Alcohol? ```
28
Examination of dizzy patients?
``` Otoscopy Buerological (esp. eye movements) BP including lying/standing Balance system Audiometry ```
29
Common nto ear related causes of dizziness
Postural dizziness Side effect of medication Psychogenic & interaction with imbalance
30
What is the commonest cause of vertigo on looking up?
BPPV
31
Causes of BPPV
Head trauma Ear surgery Idiopathic
32
Pathophysiology of BPPV?
Otolith matieral from utricle is displaced into semicircular canals
33
Which SSC is BPPV most common in?
Posterior SSC
34
What can BPPV be confused with?
Vertebrobasilar insufficieny
35
How is VBI diagnosed?
Other symptoms of impaired circulation in posterior brain associated with the vertigo (e.g. visual disturbance, weakness, numbness)
36
Clinical presentation of BPPV
Vertigo on: - looking up - turning in bed (often worse to one side) - First lying down in bed at night - on first getting out of bed in the morning - bending forward - rising from bending - moving head quickly (often only in one direction) Brief episodes No associated tinnitus, hearing loss, aural fullness
37
How is BPPV evaluated clinically?
Hallpike's test
38
Management of BPPV
Epley manoeuvre | Brandt-Daroff exercises
39
What is Hallpikes test?
Lie patient back with head off end of bed as quickly as possible Tell patient to keep eyes open and look for nystagmus
40
How long does a patient have to wait in each position of the epley manouevre?
30 secs - 1 min
41
Clinical presentation of vestibular neuronitis
Prolonged vertigo (days) No associated tinnitus or hearing loss Probable viral aetiology May be viral prodomal symptoms
42
What is vestibular neuronitis?
Inflammation of vestibular nerve
43
Clinical features of labrynthitis
Prolonged vertigo (days ) May be asociated tinnitus or hearing loss Probable viral aetiology Mat be viral prodromal symptoms
44
Treatment of vestibular neuronitis & labbyrinthitis
Supportive management
45
Features of Menieres disease
History of recurrent, spontaneous, rotational vertigo with at least 2 episodes
46
Management of Meniere's disease
``` Supportive treatment during episodes Tinnitus therapy Hearing aids Grommet insertion Intratympanic gentamicin/steroids ```
47
What percentage of migraine sufferers have spontaneous attacks of vertigo & ataxia?
25%
48
How is definite migranoius vertigo diagnosed?
Episodic vestibular symptoms of at leat moderate severity (interfere but not impede daily activities) Migraine according to the international headache society criteria Other causes ruled out
49
What is otosclerosis?
Inherited disorder causing progressive deafness due to gradual ossification of the inner ear