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SPRING 13 Disorders of Hearing > FINAL - Inner Ear Disorders > Flashcards

FINAL - Inner Ear Disorders Flashcards

1
Q

Noise Induced Hearing Loss

Define?

Hallmark?

A

Noise exposure in excess

Begins in high frequencies (3-6)

classic 4k Hz notch

Bilateral but not always symmetrical

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2
Q

Presbycusis (Age Related)

Anatomical Changes ME & IE

A
  • Pinna, EAC, & TM lose elasticity
  • ME musclces degenerated
  • Ossicles and ligaments may calcify
  • BUT no conductive loss

INNER CHANGES

  • Hair cell loss
  • Spiral ganglion & stria vascularis degeneration
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3
Q

Presbycusis Hearing Loss Patterns

A

Begins in high frequencies and gradually progresses over years to include middle & lower frequencies

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4
Q

Presbycusis Audiological Tests

A

Type A

WR depends on degree of HL

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5
Q

Meniere’s Disease

define

symptoms

A

Endolymphatic Hydrops

when endolymphatic sac in inner ear becomes swollen

Symptoms- vertigo, tinnitus, fullness/pressure

Unilateral flucuating low freq HL

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6
Q

Meniere’s Disease begins in __________ frequencies and extends later to _________ frequencies

A

lower, higher

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7
Q

Ototoxicity

A

Pharmacological treatment of diseases with side effects of damaging cochlea (sometimes vestibular as well)

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8
Q

Ototoxicity Drug Groups

A

Antibiotics (gentamicin, neomycin, streptomycin, tobramycin)

Chemotherapeutics (Cisplatin, Carboplatin)

Loop Diuretics (Ethacrynic Acis, Furosemide)

Salicylates ( aspirin, quinine)

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9
Q

Ototoxicity Audiological Tests

Type ____

Reflexes

Unilateral? Bilateral?

A

SNHL usually bilateral

Type A

Normal Reflexes

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10
Q

Meningitis

A

Inflammation of the meninges caused by bacterial or viral infection. Increase in spinal fluid pressure

Symptoms- headache, stiff neck, nausea, photophobia

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11
Q

Meningitis Audiograms

Unilatera? Bilateral?

Symmetrical? Asymmetrical

Conductive? SNHL?

Type _____

WRT?

Reflexes?

A

Bilateral, symmetrical

SNHL (moderate-profound)

Type A

SRT consistent with PTA

WRT Poor

Reflexes - elevated or absent

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12
Q

Sudden SNHL

A

Sudden HL (> 20-30 dB) 3+ adjacent frequencies over 3 days

Unknown cause (idiopathic)

possible infection, autoimmune, tumors

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13
Q

Noise exposure in excess

Begins in high frequencies (3-6)

classic 4k Hz notch

Bilateral but not always symmetrical

A

Noise Induced Hearing Loss

Define?

Hallmark?

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q
  • Pinna, EAC, & TM lose elasticity
  • ME musclces degenerated
  • Ossicles and ligaments may calcify
  • BUT no conductive loss

INNER CHANGES

  • Hair cell loss
  • Spiral ganglion & stria vascularis degeneration
A

Presbycusis (Age Related)

Anatomical Changes ME & IE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Begins in high frequencies and gradually progresses over years to include middle & lower frequencies

A

Pesbycusis Hearing Loss Patterns

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Type A

WR depends on degree of HL

A

Presbycusis Audiological Tests

17
Q

Endolymphatic Hydrops

when endolymphatic sac in inner ear becomes swollen

Symptoms- vertigo, tinnitus, fullness/pressure

Unilateral flucuating low freq HL

A

Meniere’s Disease

define

symptoms

18
Q

Pharmacological treatment of diseases with side effects of damaging cochlea (sometimes vestibular as well)

A

Ototoxicity

19
Q

Antibiotics (gentamicin, neomycin, streptomycin, tobramycin)

Chemotherapeutics (Cisplatin, Carboplatin)

Loop Diuretics (Ethacrynic Acis, Furosemide)

Salicylates ( aspirin, quinine)

A

Ototoxicity Drug Groups

20
Q

SNHL usually bilateral

Type A

Normal Reflexes

A

Ototoxicity Audiological Tests

Type ____

Reflexes

Unilateral? Bilateral?

21
Q

Inflammation of the meninges caused by bacterial or viral infection. Increase in spinal fluid pressure

Symptoms- headache, stiff neck, nausea, photophobia

A

Meningitis

22
Q

Bilateral, symmetrical

SNHL (moderate-profound)

Type A

SRT consistent with PTA

WRT Poor

Reflexes - elevated or absent

A

Meningitis Audiograms

Unilatera? Bilateral?

Symmetrical? Asymmetrical

Conductive? SNHL?

Type _____

WRT?

Reflexes?

23
Q

Sudden HL (> 20-30 dB) 3+ adjacent frequencies over 3 days

Unknown cause (idiopathic)

possible infection, autoimmune, tumors

A

Sudden SNHL

SPRING 13 Disorders of Hearing (6 decks)

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