Comparison of intratympanic dexamethasone therapy and hyperbaric oxygen therapy for the salvage treatment of refractory high-frequency sudden sensorineural hearing loss

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.

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