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Otosclerosis (Otospongiosis)

Kellie D Wheeler, MD and Matthew Harwood, MD Reviewed 06/2022
 


BASICS

DESCRIPTION

  • A primary bone dyscrasia involving the otic capsule with two forms:

    • Clinical otosclerosis: Abnormal spongy bone involves ossicular chain or other structures, leading to altered physio...

DIAGNOSIS

HISTORY

  • Progressive conductive hearing loss, usually with well-preserved speech discrimination

  • Patients often are soft-spoken and aware that they seem to hear better in noisy environments.

PHYSICAL EXAM

TREATMENT

MEDICATION

No specific drug therapy, but sodium fluoride, bisphosphonates, vitamin D, and calcium gluconate have been tried, especially in cases of predominantly sensorineural hearing loss. 

SURGERY/OTHER PROCEDURES

ONGOING CARE

FOLLOW-UP RECOMMENDATIONS

Monitor health-related quality-of-life measures. 

Patient Monitoring

Interval audiometric testing 

PATIENT EDUCATION

  • Because speech discrimination is usually preserve...

REFERENCES

1
Meyer  TA, Lambert  PR. Primary and revision stapedectomy in elderly patients. Curr Opin Otolaryngol Head Neck Surg.  2004;12(5):387–392. [View Abstract on Ovi...

ADDITIONAL READING

SEE ALSO

Hearing Loss 

CODES

ICD10

  • H80.90 Unspecified otosclerosis, unspecified ear

  • H80.20 Cochlear otosclerosis, unspecified ear

  • H80.00 Otosclerosis w oval window, nonobliterative, unsp ear

  • H80.10 Otosclerosis involving oval w...

CLINICAL PEARLS

  • The audiometric signature of otosclerosis is a dip in conductive hearing at 2,000 Hz.

  • Hearing aids are helpful in patients with preserved speech discrimination.

  • Bilateral involvement and...

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