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ENT > EXTERNAL EAR INFLAMMATION > Flashcards

EXTERNAL EAR INFLAMMATION Flashcards

1
Q

Localized acute otitis externa is AKA __________ and is caused by ____________

A

Furnuncle
Staphylococcus aureus

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2
Q

What are the features of furnace
Furuncle in external ear?

A

Severe pain
Tenderness
Jaw movement causes pain
Posterior meatal wall involvement causes edema over mastoid and obliteration of retroauricular groove
Periauricular lymph nodes enlarged

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3
Q

What to suspect in recurrent furuncle?

A

Diabetes mellitus

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4
Q

What is the management of localized acute otitis externa

A

Systemic antibiotics
Analgesics
Heat
Icthammol glycerine

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5
Q

What is diffuse otitis externa

A

Inflammation of pinna and epidermal layer of tympanic membrane

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6
Q

Etiology of diffuse otitis externa

A

Summer
Sweating
Acidic ph turns alkaline
Trauma
Bacterial invasion

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7
Q

Common pathogens involved in diffuse otitis externa

A

S. Aureus
Pseudomonas pyocyaneus
Bacillus proteus
E coli

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8
Q

What are the phases of diffuse otitis externa?

A

Acute phase (pain, serous discharge and inflamed meatal wall)
Chronic phase (itch, scanty discharge, dry ear, and rarely hypertrophic → chronic stenotic otitis external)

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9
Q

Treatment of acute phase of diffuse otitis externa

A

Antibiotics
Analgesics
Ear toilet
Medicated wicks

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10
Q

Treatment of chronic phase of diffuse otitis externa

A

Antibiotic Steroid cream
Ichthammol glycerine

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11
Q

Treatment of chronic phase of diffuse otitis external

A

Antibiotic Steroid cream
Ichthammol glycerine
Ear toilet

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12
Q

Malignant otitis externa is caused by ______________

A

Pseudomonas aeruginosa

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13
Q

People who are susceptible to malignant otitis externa

A

Elderly diabetics
Immunosuppression

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14
Q

S/S of malignant otitis externa

A

Excruciating pain
Granulation tissue
Facial and other CN palsies
CT → bone destruction

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15
Q

Dx of malignant otitis externa is made by _____________

A

Gallium-67

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16
Q

Gallium-67 can be repeated every ________ to check the prognosis

A

3 weeks

17
Q

What is the treatment of malignant otitis externa

A

Ear toilet
Antibiotics (Gentamicin, Ceftriaxone or ceftazidime, or quinolones)

18
Q

Otomycosis is a ___________ infection

A

fungal

19
Q

Otomycosis is caused by

A

Aspergillus niger (black mass)
Aspergillus fumigatus (pale blue)
Candida albicans (creamy white)

20
Q

Etiology of otomycosis

A

Summer hot climates
Topical antibiotics

21
Q

S/S of otomycosis

A

Itching
Watery discharge
Musty odor

22
Q

Treatment of fungal otomycosis

A

Ear toilet
Antifungal (Nystatin, clotrimazole)
Povidone iodine
Salicylic acid in alcohol
Ear MUST be kept dry
for 1 week

ENT (12 decks)

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