Comparison of Intratympanic Steroid Injection, Hyperbaric Oxygen and Combination Therapy in Refractory Sudden Sensorineural Hearing Loss

ObjectiveThe objective of this study was to compare the efficacy of intratympanic steroid injection (ITS), hyperbaric oxygen (HBO), and combination therapy as salvage treatment in patients with sudden sensorineural hearing loss (SSNHL) after failure of systemic therapy.Study DesignA historical cohor