According to the pure tone audiometry after the operation,A-B gap was less than 0 decibel in 0 patients,less than 0 decibel in 7 patients,less than 0 decibel in patients,and over 0 decibel in only patient.
According to the pure tone audiometry after the operation,A-B gap was less than 0 decibel in 0 patients,less than 0 decibel in 7 patients,less than 0 decibel in patients,and over 0 decibel in only patient.
术后气骨导差<0 dB 0例,<0 dB 7例,< 0 dB 例, 0 dB以上例。