Related Experiment Videos
Sensorineural loss in chronic otitis media. Is it clinically significant?
B A Levine1, C Shelton, K I Berliner
1Department of Otolaryngology, University of Southern California School of Medicine, Los Angeles.
Archives of Otolaryngology--Head & Neck Surgery
|July 1, 1989
Summary
This study found that chronic otitis media can cause sensorineural hearing loss, particularly with severe middle ear disease. However, most cases were not clinically significant.
Area of Science:
- Otolaryngology
- Audiology
- Neurosurgery
Background:
- Chronic otitis media (COM) is a common condition affecting the middle ear.
- Sensorineural hearing loss (SNHL) can occur alongside middle ear pathologies.
- The relationship between COM severity and SNHL requires further elucidation.
Purpose of the Study:
- To investigate the prevalence and characteristics of SNHL in patients with unilateral COM.
- To identify factors associated with SNHL in the context of COM.
Main Methods:
- Retrospective chart review of 161 patients with unilateral COM.
- Definition of SNHL based on preoperative bone conduction thresholds between affected and contralateral ears.
- Analysis of relationships between SNHL and indicators of middle ear disease severity.
Main Results:
- Statistically significant, though generally small, mean bone conduction differences (5.6–12.8 dB) were observed across frequencies.
- Approximately 45% of patients exhibited SNHL >10 dB in high frequencies.
- SNHL showed significant associations with acquired cholesteatoma, diseased middle ear mucosa, and ossicular pathology.
Conclusions:
- More severe middle ear disease in COM may contribute to SNHL.
- The degree of SNHL was not clinically significant for the majority of patients studied.
- Further research into the mechanisms of SNHL in COM is warranted.