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目的 研究低频传导性听力损失与中耳共振频率的相关性。方法 纳入 84例参与者 ,测量其共振频率 ,并用金标准测试。用ROC曲线测试诊断低频传导性听力损失的最佳分界点 ,用Levene s测试低频传导性听力损失组与听力正常组间共振频率的差异。结果 传导性听力损失和听力正常组的共振频率来自不同的总体。理想的分界点为 85 0Hz和 10 5 0Hz。共振频率在 85 0Hz～ 10 5 0Hz之间认为是正常的。当共振频率小于 85 0Hz时 ,检验出传导性听力损失的效能较高 ,当共振频率大于 10 5 0Hz时 ,检验出传导性听力损失的效能较低。结论 当共振频率小于 85 0Hz时 ,可以推断有传导性听力损失 ;当共振频率大于 10 5 0Hz时 ,检验效能较低。这可能与共振频率受多因素影响有关。当共振频率高于 10 5 0Hz时 ,耳鼻咽喉科医师和听力学家在解释共振频率的结果时必须慎重。
Objective To study the correlation between low frequency conductive hearing loss and middle ear resonance frequency. Methods Eighty-four participants were enrolled in the study, their resonance frequency was measured and the gold standard test was performed. The ROC curve was used to test the best cut-off point for diagnosis of low-frequency conduction hearing loss. Levene s was used to test the difference in resonance frequency between the low-frequency conduction hearing loss group and the normal hearing group. Results The frequencies of resonant hearing loss and hearing normal group were from different population. The ideal demarcation point is 85 0Hz and 105 0Hz. Resonance frequency between 85 0Hz ~ 105 0Hz is considered normal. When the resonance frequency is less than 85 0 Hz, the performance of conductive hearing loss is verified to be high. When the resonance frequency is more than 105 Hz, the performance of conductive hearing loss is lower. Conclusion When the resonance frequency is less than 85 0 Hz, it can be concluded that there is conductive hearing loss. When the resonance frequency is more than 105 Hz, the test performance is low. This may be related to the resonance frequency affected by many factors. Otolaryngologists and audiologists must be careful when interpreting the results of the resonance frequency when the resonance frequency is higher than 105.0 Hz.