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Circulating immune complexes in steroid-responsive sensorineural hearing loss and the long-term observation
Acta Oto-Laryngologica. Supplementum
|January 1, 1983
Summary
This study investigated immune complexes in sensorineural hearing loss (SNHL). Steroid treatment improved hearing in some SNHL patients, suggesting an autoimmune cause for this hearing loss.
Area of Science:
- Immunology
- Otolaryngology
- Rheumatology
Background:
- Bilateral sensorineural hearing loss (SNHL) can have various etiologies.
- Immune complex deposition is implicated in certain autoimmune conditions.
- Quantifying immune complexes may aid in diagnosing SNHL subtypes.
Purpose of the Study:
- To quantitatively assess immune complexes (IC) in patients with bilateral sensorineural hearing loss (SNHL).
- To explore the correlation between IC levels, etiology, and response to steroid treatment in SNHL.
- To identify potential autoimmune SNHL cases.
Main Methods:
- Quantitative determination of immune complexes (IC) using the Raji cell immuno-fluorescence assay.
- Analysis of 53 cases of bilateral SNHL, including those of unknown etiology, syphilitic reaction, and aortitis syndrome.
- Evaluation of patient response to steroid therapy based on hearing improvement.
Main Results:
- High IC values were detected in 5 out of 53 SNHL cases.
- One case of aortitis syndrome and three cases of unknown etiology with high IC responded to steroids.
- Two cases with normal IC values also showed steroid responsiveness.
- All steroid-responsive SNHL patients were female.
Conclusions:
- Steroid responsiveness in SNHL suggests a potential autoimmune etiology.
- Long-term steroid therapy may help maintain hearing levels in steroid-responsive SNHL.
- Immune complex assessment can be a valuable tool in diagnosing SNHL, particularly autoimmune forms.