畸变产物耳声发射与响度重振现象关系的探讨  

The relationship between loudness recruitment phenomenon and distortim product otoacoustic emission and their clinical significance

作　　者：崔晓波[1] 姜舒[1] 陈海燕[1] 

机构地区：[1]内蒙古医学院第一附属医院耳鼻咽喉科

出　　处：《中华耳鼻咽喉科杂志》1998年第5期294-296,共3页Chinese Journal of Otorhinolaryngology

摘　　要：目的探讨响度重振与耳蜗主动机制异常之间的关系，为耳声发射用于诊断耳蜗性病变提供更多指标。方法通过对２０例（４０耳）健康人、５０例（６３耳）常规重振检测频率阳性者和１１例（１５耳）蜗后性聋耳进行畸变产物耳声发射（ｄｉｓｔｏｒｔｉｏｎｐｒｏｄｕｃｔｏｔｏａｃｏｕｓｔｉｃｅｍｉｓｉｏｎ，ＤＰＯＡＥ）的输入－输出（Ｉ／Ｏ）曲线的测试和分析。结果重振检测阳性的患耳不同频率ＤＰＯＡＥ的Ｉ／Ｏ曲线斜率的均值与健康人对应频率Ｉ／Ｏ曲线斜率的均值相比明显增大（Ｐ＜０．０１），其ＤＰＯＡＥ的检测阈也明显提高。结论响度重振与耳蜗主动机制异常有特定联系，ＤＰＯＡＥ的Ｉ／Ｏ曲线对耳蜗主动机制的评价更直观、准确，可能成为一种有价值的诊断耳蜗性病变的指标。Objective To study the relationship between loudness recruitment and abnormal cochlear mechanism. Methods 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. Results 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 positiveears were higher than those in normal subjects. Conclusion Loudness recruitment and abnormal cochlear active mechansm 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.

关 键 词：耳声发射 自发性 感音神经性耳聋 响度重振 

分 类 号：R764.431[医药卫生—耳鼻咽喉科]