Follow up study of sudden deafness

Area of Science:

• Otolaryngology
• Audiology
• Neurology

Background:

• Sudden deafness (SD) necessitates long-term patient follow-up.
• Monitoring hearing level changes is crucial.
• Differential diagnosis from Meniere's disease is important.

Purpose of the Study:

• To conduct a follow-up study on patients with sudden deafness.
• To analyze hearing level changes over time.
• To assess the long-term prognosis of sudden deafness.

Main Methods:

• Follow-up study of 27 patients with sudden deafness.
• Patients admitted to the Department of Otolaryngology, Second Tokyo National Hospital.
• Follow-up duration ranged from 6-58 months (mean 23.7 months).

Main Results:

• In the Complete Recovery Group, minimal change in mean hearing loss was observed.
• Recovered hearing levels rarely deteriorated post-recovery.
• Hearing levels in non-recovered patients sometimes showed deterioration.

Conclusions:

• Long-term follow-up is significant for sudden deafness patients.
• Recovered hearing in sudden deafness is generally stable.
• Non-recovered hearing may be prone to further deterioration.