Otic surgery Flashcards

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1
Q

List 5 indications for ear surgery

A

trauma
aural haematoma
neoplasia
certain cases with chronic otitis externa
chronic otitis media

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1
Q

Describe how to treat aural haematomas

A

lost of options including drainage and suturing , instillation with glucocorticoids, placement of indwelling drain

BUT need to manage the underlying cause of the ear irritation

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2
Q

List 3 possible complications of aural haematoma

A

Cosmetic alterations
Recurrence of haematoma
Pinna necrosis

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3
Q

List 2 indications of lateral wall resection of the ear

A

neoplasia of the lateral wall of the vertical canal
rarely in management of otitis media- allows flushing and drainage of bulla

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4
Q

when will a lateral wall resection of the ear fail

A

if there is chronic, irreversible, hyperplastic changes to the luminal epithelium

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5
Q

List 5 complications of lateral wall resection of the ear canal

A

post-op pain
incisional dehiscence
persistent otitis externa
Persistent, unrecognised otitis media
Failure to provide adequate drainage of the horizontal canal

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6
Q

List 2 indications of vertical ear canal ablation

A

vertical canal only diseased
neoplastic disease and polyps restricted to the vertical ear canal

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7
Q

List 5 possible complications of vertical canal ablation

A

Postoperative pain/discomfort
Incisional dehiscence
Persistent otitis externa
Persistent, unrecognised otitis media
Stenosis of horizontal canal

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8
Q

List 2 surgical options to manage chronic otitis externa/ media

A

Total ear canal ablation and lateral bulla osteotomy (TECA BO)

Ventral bulla osteotomy (VBO)

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9
Q

List 4 indications for a total ear canal ablation (bulla osteotomy)

A

chronic otitis externa associated with irreversible hyperplastic changes in luminal epithelium
Failure of more conservative surgery to alleviate otitis externa or media
Neoplasia of the external ear canal
Otitis media

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10
Q

List 8 possible complications of TECA BO

A

Postoperative pain/discomfort
Deafness
Incisional dehiscence
Facial nerve paralysis
Vestibular disturbances
Haemorrhage
Horner’s syndrome
Recurrence/abscess formation

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11
Q

List the classic features of Horners syndrome

A

Anisocoria with ipsilateral miosis
Ptosis of the upper eyelid
Narrowing of the palpebral fissure
Enophthalmos
Protrusion of the third eyelid

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12
Q

List 3 indications of vental bulla osteotomy

A

In cases with middle ear disease and the following:
Cases in which a TECA is not required
Certain brachycephalic breeds of dog
Often used in the cat

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13
Q

List 8 pontential complications of VBO - ventral bulla osteotomy

A

Postoperative pain/discomfort
Deafness
Incisional dehiscence
Facial nerve paralysis
Vestibular disturbances
Haemorrhage
Horner’s syndrome
Recurrence/abscess formation

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14
Q

what is a cholesteatoma

A

Slowly enlarging, cystic lesions within the middle ear cavity

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15
Q

which way should sutures be placed when fixing an aural haematoma

A

longitudinal in order to prevent occluding the blood supply - cause cause it to become necrotic

16
Q

How do we treat cholesteatomas

A

TECA LBO
or
VBO

17
Q

where do we normally see inflammatory polyps in dogs

A

horizontal ear canal