0～6岁听力损失儿童短纯音诱发的听性脑干反应研究

目的比较听力损失儿童短纯音听性脑干反应（auditory brainstem response，ABR）反应阈与40Hz听觉事件相关电位（auditory event-related potentials，AERP）及短声ABR反应阈的相关性，评价短纯音ABR在儿童听力评估中的应用。方法应用SmartEP听觉诱发电位仪在0～6岁听力损失儿童中记录短声、短纯音ABR及40 Hz AERP的反应阈，共43例85耳（男／女=27／16）。结果0．5、1、2kHz短纯音ABR反应阈与40 Hz AERP反应阈的线性相关系数分别为0．84、0．80、0．80，反应闯之差分别为3．6±12．2、5．9±14．8、1．7±13.7dB。0．5、1、2、4kHz短纯音ABR反应阈与短声ABR反应阈的线性相关系数分别为0．81、0．89、0．94、0．91，反应阈之差分别为6．6±13．4、0．2±10．7、1．5±8．1、4．2±10．2dB。2kHz、4kHz短纯音反应阈的平均值与短声ABR反应阈的线性相关系数为0．93，反应阈之差为2．8±8．3dB。结论短纯音ABR的反应阈可作为一种儿童听力评估的方法。

A study on auditory brainstem responses evoked by tone burst in 0~6-year-old children with hearing loss

Objective To evaluate the feasibility of tone burst-evoked auditory brainstem responses (ABR) in estimating the hearing level of children with hearing loss in comparison with 40 Hz auditory event-related potentials (AERP) and click-evoked ABRs. Methods The thresholds of click-and tone burst-evoked ABRs and 40 Hz AERPs were obtained in 43 hearing-impaired children (85 ears) of 0 to 6 years old (male/female = 27/16 ). Results The linear correlation coefficients of the thresholds between tone burst-evoked ABRs...