pure tone average

Results All cases were operated successfully. 78 cases ( 132 ears) were followed up with 7~ 12 months. These cases hearing were improved significantly, pure tone threshold average was 21.6 dB and audibility threshold elevated 28 dB averagely.

结果所有置管均一次完成，术后7～12个月复查78例（132耳），疗效显著，纯音测听平均为21.6dB，听阈平均提高28dB。

TEOAE energy distribution takes the average energy of the normal hearing persons as 0 dB, and 5% percentage at single side as the 95% normal value range. TEOAE energy distribution represents the energy loss and is convenient for the comparison to the pure tone audiogram.

TEOAE能量分布图以正常人的平均能量作为0dB，以单侧5%位数作为95%正常值范围，它体现了能量的损失情况，便于与纯音测听的结果相比较。