ENT Department, Ankara Diskapi Yildirim Beyazit Research and Training Hospital, Ministry of Health, Ankara, Turkey.
Eur Arch Otorhinolaryngol. 2010 Jan;267(1):43-9. doi: 10.1007/s00405-009-1014-8.
The objective of this study is to compare pure tone audiometry and auditory steady-state response (ASSR) thresholds in normal hearing (NH) subjects and subjects with hearing loss. This study involved 23 NH adults and 38 adults with hearing loss (HI). After detection of behavioral thresholds (BHT) with pure tone audiometry, each subject was tested for ASSR responses in the same day. Only one ear was tested for each subject. The mean pure tone average was 9 ± 4 dB for NH group and 57 ± 14 for HI group. There was a very strong correlation between BHT and ASSR measurements in HI group. However, the correlation was weaker in the NH group. The mean differences of pure tone average of four frequencies (0.5, 1, 2, and 4 kHz) and ASSR threshold average of same frequencies were 13 ± 6 dB in NH group and 7 ± 5 dB in HI group and the difference was significant (P = 0.01). It was found that 86% of threshold difference values were less than 20 dB in NH group and 92% of threshold difference values were less than 20 dB in HI group. In conclusion, ASSR thresholds can be used to predict the configuration of pure tone audiometry. Results are more accurate in HI group than NH group. Although ASSR can be used in cochlear implant decision-making process, findings do not permit the utilization of the test for medico-legal reasons.
本研究旨在比较正常听力（NH）受试者和听力损失（HI）受试者的纯音听阈和听觉稳态反应（ASSR）阈值。本研究纳入了 23 名 NH 成年人和 38 名 HI 成年人。在使用纯音测听法检测行为阈值（BHT）后，当天对每位受试者进行 ASSR 反应测试。每位受试者仅测试一只耳朵。NH 组的平均纯音平均值为 9 ± 4 dB，HI 组为 57 ± 14 dB。HI 组的 BHT 和 ASSR 测量值之间存在很强的相关性。然而，NH 组的相关性较弱。NH 组四个频率（0.5、1、2 和 4 kHz）的纯音平均值和相同频率的 ASSR 阈值平均值的平均差异为 13 ± 6 dB，HI 组的平均差异为 7 ± 5 dB，差异具有统计学意义（P = 0.01）。结果发现，NH 组中 86%的阈值差异值小于 20 dB，HI 组中 92%的阈值差异值小于 20 dB。总之，ASSR 阈值可用于预测纯音测听法的配置。HI 组的结果比 NH 组更准确。尽管 ASSR 可用于人工耳蜗决策过程，但研究结果不允许出于医疗法律原因使用该测试。
