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  • Title: Comparison of intratympanic dexamethasone therapy and hyperbaric oxygen therapy for the salvage treatment of refractory high-frequency sudden sensorineural hearing loss.
    Author: Sun H, Qiu X, Hu J, Ma Z.
    Journal: Am J Otolaryngol; 2018; 39(5):531-535. PubMed ID: 29891394.
    Abstract:
    OBJECTIVE: This study aimed to compare the efficacy of intratympanic dexamethasone (ITD) therapy and hyperbaric oxygen(HBO) therapy for the salvage treatment of patients with high-frequency sudden sensorineural hearing loss (SSNHL) after the failure of conventional therapy. MATERIALS AND METHODS: 104 refractory high-frequency SSNHL patients were enrolled in our study. Among them, 31 received ITD alone (ITD group), 32 received HBO alone (HBO group) and 41 received no salvage therapies (control group). Hearing outcomes were determined by pure-tone average measured by audiometry. The total effective rates in the hearing recovery and improvement of tinnitus were calculated before and after salvage treatment. RESULTS: There was no significant difference of the total effective rates in the hearing recovery between ITD and HBO group (p = 0.368). However, ITD therapy showed much better improvements of tinnitus than HBO therapy (p = 0.039). After ITD and HBO therapy, there were no significant differences in hearing gains at 2 and 4 KHz between ITD and HBO group (p = 0.468 and 0.934, respectively). Nevertheless, ITD therapy showed significant improvements of hearing gains at 8 KHz (p = 0.049) compared to that of HBO therapy. CONCLUSION: ITD therapy may have better improvements of tinnitus and hearing gains at 8 KHz than HBO therapy in patients with refractory high-frequency SSNHL.
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