to evaluate the efficacy and safety of otoendoscope-assisted transtympanic methylprednisolone injection for intractable idiopathic sudden sensorineural hearing loss (ssnhl).
目的研究耳内镜辅助下鼓室内注射甲强龙治疗难治性突发性耳聋的有效性与安全性。
objectives to evaluate curative effect and safety of the treatment method about idiopathic sudden sensorineural hearing loss (isshl), following an evidence-based therapy.