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Current clinical and pathological features of round window diseases
M M Paparella1, M V Goycoolea, P A Schachern
1Department of Otolaryngology, University of Minnesota, Minneapolis.
The Laryngoscope
|October 1, 1987
Summary
The round window membrane is implicated in hearing loss and perilymphatic fistulas. New research explores its role in conditions like otitis media and Meniere
Area of Science:
- Otolaryngology
- Neuroscience
- Auditory Physiology
Background:
- The round window niche and membrane are crucial in various auditory pathologies.
- Clinical issues include perilymphatic fistulas and sensorineural hearing loss associated with otitis media.
- Existing literature and experimental data on round window grafting and tracer studies provide context.
Purpose of the Study:
- To review clinical problems involving the round window niche and membrane.
- To discuss clinical pathological correlates and recent clinical experiences.
- To describe a newly identified syndrome, perilymphatic hypertension.
Main Methods:
- Literature review of round window pathologies.
- Analysis of experimental evidence on round window grafting and tracer studies.
- Discussion of clinical pathological correlates and case studies.
Main Results:
- Perilymphatic fistulas are linked to sudden deafness, fluctuating hearing loss, and Meniere's disease.
- Sensorineural hearing loss in otitis media and findings in otosclerosis are examined.
- A novel syndrome, perilymphatic hypertension, is identified in some sudden hearing loss cases.
Conclusions:
- The round window membrane plays a significant role in various hearing disorders.
- Understanding these pathologies is vital for diagnosis and treatment.
- Perilymphatic hypertension represents a new clinical entity in sudden sensorineural hearing loss.