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对9例（17耳）听力正常的青年人（对照组）及55例（82耳）持续性耳鸣患者（耳鸣组）进行听性脑干反应（ABR）测定。结果示：对照组ABR除1耳Ⅲ波与Ⅴ波波幅相等外，余均为小Ⅲ波大Ⅴ波；耳鸣组中28耳（34．2％）呈大Ⅲ波小Ⅴ波异常改变。对其中18耳静注利多卡因后，15耳由大Ⅲ波小Ⅴ波恢复至小Ⅲ波大Ⅴ波。提示部分耳鸣患者（包括中枢性与外周性）ABR可出现大Ⅲ波小Ⅴ波异常变化；利多卡因能使各种耳鸣患者的异常ABR恢复正常；ABR可望作为耳鸣的一项客观检测指标。
Auditory brainstem response (ABR) was measured in 9 cases (17 ears) of normal hearing young people (control group) and 55 cases (82 ears) of persistent tinnitus patients (tinnitus group). The results showed that in the control group, except for the amplitude of wave III of ¢ ó and ¢ õ of 1 ¢ ò ears were equal, all of them were small ¢ ó wave ¢ õ wave; in the tinnitus group, 28 ears (34.2%) showed large ¢ ô wave Î ± Î ± wave abnormalities. Of 18 ear intravenous injection of lidocaine, 15 ears from large wave Ⅲ small Ⅴ wave recovery to small Ⅴ wave wave. It is suggested that the ABR of some patients with tinnitus (including central and peripheral) may show abnormal changes of large Ⅴ waves and small Ⅴ waves. Lidocaine can make abnormal ABR return to normal in all kinds of tinnitus patients. ABR is expected to be an objective measure of tinnitus .