This study showed the difficulty of diagnosing localized AAV and the effectiveness of immunosuppressive therapy for hearing loss in the early stage. Based on these results, early-stage AAV would influence the stria vascularis in the cochlea. Otitis media with ANCA-associated vasculitis is a new entity among the causes of intractable otitis media and progressive hearing loss.
This pilot study provides new evidence establishing that long-term anti-IgE therapy improved the clinical ear symptoms of EOM and bone conduction hearing levels were mostly preserved. Therefore, long-term anti-IgE therapy can be effective for EOM to inhibit eosinophilic inflammation in the middle ear.
Eosinophilic-inflammation-related substances such as ECP and IgE are closely related to the deterioration of BCHL at high frequencies. Particularly, IgE concentration in MEE is a good indicator of BCHL elevation. We should always pay attention to the hearing acuity of EOM patients with the risk factors.
KO tends to progress initially to the tympanic cavity via a diseased tympanic membrane. EACC tends to progress to the mastoid cavity via destruction of the posterior bony canal. This is the first report to investigate differences in pathway of progression to the middle ear cavity in these 2 diseases.
This study showed that G3 EOM was unresponsive to conservative glucocorticoid treatment and required granulation tissue removal. Classification based on the middle ear pathology is useful for determining the most appropriate and successful treatment for EOM.
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