伴感音神经性聋耳鸣的心理声学和听力学特征

目的:研究伴感音神经性聋耳鸣的心理声学特征测试及听力学的特征。方法:选取感音神经性聋耳鸣患者61例(79耳)作为实验组,选取25例(50耳)听力正常且无耳鸣的志愿者作对照组,分别检测2组对象的纯音测听、声导抗测试、耳鸣检测、畸变产物耳声发射(DPOAE),并进行统计学分析。结果:实验组平均后效抑制阳性率为51.3%,其中耳鸣掩蔽曲线为汇聚型者掩蔽效果较好;实验组与对照组DPOAE的通过率差异有统计学意义,实验组(15.2%)低于对照组(96.0%);在500～8 000Hz各个频率点实验组DPOAE幅值低于对照组有统计学意义。结论:耳鸣心理声学测试能够更全面了解耳鸣详细的心理声学特征资料,对耳鸣康复指导提供更加详尽量化指标依据,DPOAE测试可以辅助对耳鸣患者耳蜗病变的诊断。

Analysis of psychoacoustic characteristics and audiology tests of tinnitus patients with sensorineural hearing loss

Objective:Tried to find the relationship between tinnitus and each testing method,provided information for objective diagnosis and treatment for tinnitus patients with sensorineural hearing loss.Method:The characteristics of audiology tests,including pure tone audiometric,acoustic immittance,middle ear muscle reflexes,matching test,distortion products otoacoustic emission(DPOAE) were compared in 79 ears of 69 tinnitus patients with sensorineural hearing loss.Result:The RI positive rate was higher in Convergence curve in tinnitus patients of sensorineural hearing loss,with the rate being 51.3%.The detection rates of DPOAE were 15.2% in patients of sensorineural hearing loss tinnitus groups,which were significant lower than those in control group.Conclusion:Psychoacoustic techniques can produce a useful amount of clinical data regarding tinnitus in different aspects,these data can help clinicians design needed based managements.DPOAE test is helpful for the diagnosis of lesions in some tinnitus patients.