A 51-year-old female had first episode of sudden deafness in her left ear in July, 1996. audiometry revealed left sensor摘要51岁女性发生左侧突发性耳聋，经第一次璧院治疗后，听力轻微改善。
According to the pure tone audiometry after the operation,A-B gap was less than 0 decibel in 0 patients,less than 0 deci术后气骨导差<0 dB 0例,<0 dB 7例,< 0 dB 例, 0 dB以上例。