伴感音神经性聋耳鸣的心理声学和听力学特征

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

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。

Objective：Tried to find the relationship between tinnitus and each testing method, provided infor- mation 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 pa tients 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：Psyehoacoustic techniques can produce a useful amount of clinical data regarding tinnitus in different aspects, these data ean help clinicians design needed based managements. DPOAE test is helpful for the diagnosis of lesions in some tinnitus patients.