听性稳态反应和短声诱发的听性脑干反应在客观听阈评估中的作用

目的探讨听性稳态反应(auditory steady-state responses,ASSR)和短声诱发听性脑干反应(ABR)在感音神经性聋人群客观听阈评估中的作用及其在耳聋鉴定中的价值。方法对感音神经性聋组(35耳)及正常组(22耳)分别进行纯音听阈、ABR及ASSR测试,并记录0.5、1、2及4kHz ASSR反应阈(dBHL)、纯音听阈(dBHL)及ABR反应阈(dBnHL)。结果正常组在0.5、1、2、4kHz的ASSR反应阈与纯音听阈相比差异无统计学意义(P>0.05),ABR反应阈与各频率纯音听阈差异有显著统计学意义(P<0.05);耳聋组各频率ASSR反应阈与纯音听阈差异无统计学意义(P>0.05),ABR反应阈与0.5kHz纯音听阈差异有统计学意义(P<0.05),与1、2、4kHz纯音听阈差异无统计学意义(P>0.05)。结论ASSR与ABR联合测试是临床工作中用于客观听阈评估的有效方法。

Objective Assessment of Sensorineural Hearing Loss with Auditory Steady-State Responses and Click-Auditory Brainstem Responses

Objective Auditory steady-state responses(ASSR) and click-auditory brainstem responses(click-ABR) are utilized to predict the hearing thresholds for patients with sensorineural hearing loss(SHL) patients.Methods The subjects with sensorineural hearing loss(35 ears) and the normal subjects(22 ears) underwent pure tone audiometry(PTA),click-ABR and ASSR tests.The data were recorded for analysis.Results In the normal group there were no significant differences between ASSR and PTA thresholds(P>0.05);but click-ABR and PTA thresholds were different at all frequencies(P<0.05).In SHL group no significant differences were found between ASSR and PTA thresholds at all frequencies(P>0.05);but at 0.5 kHz frequency,PTA thresholds were significantly different from click-ABR response thresholds(P<0.05).At other frequencies there were no significant differences(P>0.05).Conclusion ASSR and click-ABR can be used concurrently as an effective method of clinically determining hearing thresholds.