耳鸣及眩晕的高频测听观察

High frequency audiometric study of patients with tinnitus and vertigo

目的 :为探讨耳鸣及眩晕对高频听力的影响。 方法 :用 Model- 32 0型听力计 ,耳机分别为 TDH 50 ;KOSSPRO/ 4。其频率范围 2 50～ 2 0 k Hz。最大输出 12 0 d BHL、12 0 d BSPL。采用一般纯音测听的上升法 ,将一组 18～ 4 0岁耳鸣及眩晕患者的高频测听与相同年龄组正常人的结果比较。 结果 :正常对照组中 ,随着频率、年龄的增加 ,听阈相应提高 ,频率的出现率减少。耳鸣组较正常人听敏度下降 ,18k Hz出现率为 4 2 % ;眩晕组 18k Hz出现率为 0。 结论

Objectives:To observe the high frequency audiometric characteristics of patients with vertigo and Tinnitus. Methods:Audiometry Model- 32 0 ,Ear phone was TDH 5 0 ;Kosspro/4 .Frequency range 2 5 0～ 2 0 k Hz,maximal output1 2 0 d BHL ,1 2 0 d BSPL.Test way as usual,test group were patients,healthy adults served as controls. Results:Control group:Hearing threshold increased with age and frequency.Test group:Compared with controls:the high frequency was de- creased. Conclusions:High frequency audiometry could detect hearing damage earlier than pure tone audiometry.High frequency audiometry was favourable for the early diagnosis and treatment of certain hearing loss.