Answers:
On physical exam, a patient w/ otosclerosis may demonstrate a reddish blush over the promontory and oval window niche. What causes this finding?
A) Due to an effusion in the middle ear space
B) Due to prominent vascularity associated w/ inflammation
C) Due to bleeding from a fractured incus
D)Due to prominent vascularity associated w/ otospongiotic focus
This findings is called the Schwartze sign. It is uncommon, but strongly predicts otosclerosis if appreciated.
Describe the significant finding of this audiogram.
MC Questions:
This audiogram shows a "carhart notch" which is elevation of bone
conduction thresholds at 500/1000/2000 hz and is due to disruption of
normal ossicular resonance. It is highly suggestive of otosclerosis.
conduction thresholds at 500/1000/2000 hz and is due to disruption of
normal ossicular resonance. It is highly suggestive of otosclerosis.
What type of tympanogram is expected as otosclerosis progresses?
A) Type Ad
B) Type As
C) Type B
D) Type C
E) Otosclerosis does not affect tympanograms
Free Response Question:
What is the earliest sign of otosclerosis?
Quick Facts:
What is the earliest sign of otosclerosis?
Quick Facts:
Nonsurgical Therapy for Otosclerosis
-Sodium Fluoride = reduces osteoclastic bone resorption and increased osteoblastic bone formation.
-also thought to inhibit proteolytic enzymes that are cytotoxic to cochlea which
can because SNHL.
-recommended in patients with new-onset otosclerosis, rapidly progressing
disease or SNHL/dizziness.
-Pts with cochlear otosclerosis may be treated indefinitely.
-Bisphosphonates
-potent antiresorptive used in osteoporosis.
-inhibit osteoclastic activity
-most common are alendronate, etidronate, risedronate and
zoledronate
Amplification
-most have normal cochlear function with good speech discrimination so they are good hearing aid candidates.
-Most patients encouraged to try hearing aids prior to surgery as risk are
low.
-Sodium Fluoride = reduces osteoclastic bone resorption and increased osteoblastic bone formation.
-also thought to inhibit proteolytic enzymes that are cytotoxic to cochlea which
can because SNHL.
-recommended in patients with new-onset otosclerosis, rapidly progressing
disease or SNHL/dizziness.
-Pts with cochlear otosclerosis may be treated indefinitely.
-Bisphosphonates
-potent antiresorptive used in osteoporosis.
-inhibit osteoclastic activity
-most common are alendronate, etidronate, risedronate and
zoledronate
Amplification
-most have normal cochlear function with good speech discrimination so they are good hearing aid candidates.
-Most patients encouraged to try hearing aids prior to surgery as risk are
low.
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