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探讨耳声发射和听觉传出系统功能测试对听觉系统疾病的临床诊断价值。方法测试了正常人和耳蜗性及蜗后性感觉神经性听力损失病人的自发性、瞬态诱发性耳声发射及以对侧声刺激对耳声发射抑制幅度为指标的听觉传出系统功能。结果耳蜗性听力损失耳瞬态诱发性耳声发射波幅及对侧声抑制幅度较正常耳明显下降（ｎ＝２４，Ｐ＜０．０５），自发性耳声发射的发生率、波幅、波峰数及频率分布范围减低；蜗后性聋组自发性及瞬态诱发性耳声发射显著高于耳蜗性听力损失组耳，但对侧声抑制幅度明显低于正常耳及耳蜗性听力损失耳（Ｐ＜０．０１及Ｐ＜０．０５），其差异均有非常显著和显著意义。结论耳声发射及传出系统功能测试对感音神经性听力损失及小脑桥脑角病变的诊断及治疗术式的选择有参考价值。
To investigate the clinical diagnostic value of functional testing of otoacoustic emissions and auditory output system on auditory system diseases. Methods The spontaneous and transient otoacoustic emissions in normal subjects and patients with cochlear and cochlear sensory neurological hearing loss and the auditory efferent system function with the contralateral otoacoustic stimulation as the indicator of otoacoustic emissions were tested. Results The amplitude of transient otoacoustic emissions and contralateral acoustic suppression of cochlear hearing loss in the ears were significantly lower than those in the normal ears (n = 24, P <0.05). The incidence of spontaneous otoacoustic emissions, amplitude, (P <0.05). The spontaneous and transient evoked otoacoustic emissions were significantly higher in cochlear deafness group than those in cochlear hearing loss group, but the amplitude of lateral sound suppression was significantly lower than that in normal and cochlear hearing loss (P <0.01 and P <0.05), the differences were significant and significant. Conclusions The otoacoustic emissions and the outgoing system functional tests have reference value for the diagnosis and treatment of sensorineural hearing loss and cerebellar pontine angle lesion.