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  • Title: Efficacy of Biologic Therapies for Eosinophilic Otitis Media: A Systematic Review and Meta-analysis.
    Author: Kim DH, Hoon Park K, Jin Kang Y.
    Journal: J Int Adv Otol; 2024 Jul 29; 20(4):331-338. PubMed ID: 39161176.
    Abstract:
    Eosinophilic otitis media, first reported in Japan, is a viscous, intractable otitis media often linked to bronchial asthma and chronic rhinosinusitis, characterized by highly viscous middle ear effusion. Its pathological mechanism remains unclear and the condition occasionally does not respond to steroids. It is now recognized as a rare type 2 inflammatory disease and should be treated specifically to enhance quality of life. This systematic review and meta-analysis evaluated the efficacies of biologic treatments. We searched PubMed, SCOPUS, Embase, Web of Science, and Cochrane databases up to September 2023. We retrieved ear examination findings, otitis media-related and symptom scores, air-bone gaps and hearing thresholds, serum eosinophil, and immunoglobulin E (IgE) levels before and after biologic treatments. Biologics treatment significantly improved subjective otitis media-related scores, compared with control group (standard mean difference (SMD) -1.62; 95% confidence interval (CI) [-2.24; -1.01], I2=54%). Additionally, the serum eosinophil counts and IgE levels significantly decreased (SMD -1.40; 95% CI [-1.99; -0.81], I 2=0%) after 6-12 months of biologic treatments, but the hearing thresholds did not significantly change. There were no significant differences between groups treated with dupilumab and groups treated with other biologics. Biologics treatment for eosinophilic otitis media significantly improved subjective otitis media-related scores and decreased serum eosinophil and IgE levels, but no significant changes in hearing threshold. More randomized cohort studies are needed to confirm the efficacies of biologics in patients with refractory eosinophilic otitis media.
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