Jamal Fatin Nabilah, Arafat Dzulkarnain Ahmad Aidil, Shahrudin Fatin Amira, Marzuki Muhammad Nasrullah
Department of Audiology and Speech-Language Pathology, Kulliyyah of Allied Health Sciences, International Islamic University Malaysia, Pahang, Malaysia.
J Audiol Otol. 2021 Jan;25(1):14-21. doi: 10.7874/jao.2020.00073. Epub 2020 Jun 25.
There is growing interest in the use of the Level-specific (LS) CE-Chirp® stimulus in auditory brainstem response (ABR) due to its ability to produce prominent ABR waves with robust amplitudes. There are no known studies that investigate the test-retest reliability of the ABR to the LS CE-Chirp® stimulus. The present study aims to investigate the test-retest reliability of the ABR to the LS CE-Chirp® stimulus and compare its reliability with the ABR to standard click stimulus at multiple intensity levels in normal-hearing adults.
Eleven normal-hearing adults participated. The ABR test was repeated twice in the same clinical session and conducted again in another session. The ABR was acquired using both the click and LS CE-Chirp® stimuli at 4 presentation levels (80, 60, 40, and 20 dBnHL). Only the right ear was tested using the ipsilateral electrode montage. The reliability of the ABR findings (amplitudes and latencies) to the click and LS CE-Chirp® stimuli within the same clinical session and between the two clinical sessions was calculated using an intra-class correlation coefficient analysis (ICC).
The results showed a significant correlation of the ABR findings (amplitude and latencies) to both stimuli within the same session and between the clinical sessions. The ICC values ranged from moderate to excellent.
The ABR results from both the LS CE-Chirp® and click stimuli were consistent and reliable over the two clinical sessions suggesting that both stimuli can be used for neurological diagnoses with the same reliability.
由于特定水平（LS）CE-Chirp®刺激能够产生波幅明显且稳定的听觉脑干反应（ABR），因此其在ABR中的应用越来越受到关注。目前尚无研究调查ABR对LS CE-Chirp®刺激的重测信度。本研究旨在调查ABR对LS CE-Chirp®刺激的重测信度，并在正常听力的成年人中，于多个强度水平下将其信度与ABR对标准短声刺激的信度进行比较。
11名正常听力的成年人参与了研究。ABR测试在同一临床时段重复进行两次，并在另一个时段再次进行。分别使用短声和LS CE-Chirp®刺激，于4个呈现水平（80、60、40和20 dBnHL）采集ABR。仅使用同侧电极蒙片测试右耳。采用组内相关系数分析（ICC）计算同一临床时段内以及两个临床时段之间，ABR结果（波幅和潜伏期）对短声和LS CE-Chirp®刺激的信度。
结果显示，同一时段内以及临床时段之间，ABR结果（波幅和潜伏期）与两种刺激均显著相关。ICC值从中度到优秀不等。
在两个临床时段中，LS CE-Chirp®刺激和短声刺激的ABR结果均具有一致性和可靠性，这表明两种刺激均可用于神经学诊断，且可靠性相同。
