Sudden sensorineural hearing loss is an emergent disease in otologic field. Because the etiology
and pathological mechanism were not proven yet, treatment protocol was not established. Therefore, medications, duration, and dosage were different from each institute. In this review,
authors collected and analyzed articles on sudden sensorineural hearing loss published during recent 11 years. From those, we described the recommendations on the criteria and method of diagnosis, tools for treatment and their results, and guideline for reporting results and follow up.