Cui X, Jiang S, Chen H
Teaching Hospital, Inner Mongolia Medical College, Huhehaoute 010050.
Zhonghua Er Bi Yan Hou Ke Za Zhi. 1998 Oct;33(5):294-6.
To study the relationship between loudness recruitment and abnormal cochlear mechanism.
The basic properties of input/output (I/O) of distortion product otoacoustic emission (DPOAE) in 20 normal subjects(40 ears) and 50 cases with cochlear deafness (63 ears) with positive recruitment were studied and analyzed.
Average slope of I/O at different frequencies in all deaf ears with recruitment was greater than those in the normal subjects with a statistical significance (P < 0.01). Moreover, thresholds of DPOAE in the recruitment positive ears were higher than those in normal subjects.
Loudness recruitment and abnormal cochlear active mechanism are specially related. I/O functions of DPOAE are more perceptive and precise to appraise cochlear active mechanism. It probably may become a valuable test for early diagnosis of cochlear deafness.
研究响度重振与异常耳蜗机制之间的关系。
对20例正常受试者（40耳）及50例有重振阳性的耳蜗性聋患者（63耳）的畸变产物耳声发射（DPOAE）输入/输出（I/O）的基本特性进行研究和分析。
所有有重振的聋耳不同频率下I/O的平均斜率均大于正常受试者，差异有统计学意义（P<0.01）。此外，重振阳性耳的DPOAE阈值高于正常受试者。
响度重振与异常耳蜗主动机制密切相关。DPOAE的I/O功能在评估耳蜗主动机制方面更具敏感性和精确性。它可能成为耳蜗性聋早期诊断的一项有价值的检测方法。
