Department of Audiology, Institute of Health Sciences, Marmara University, Marmara Üsniversitesi Başıbüyük Sağlık Yerleşkesi, Sağlık Bilimleri Enstitüsü Müdürlüğü, Istanbul, Turkey.
Department of Odyoloji, Marmara Universitesi Cerrahi Tip Bilimleri, Istanbul, Turkey.
J Am Acad Audiol. 2022 Jan;33(1):29-35. doi: 10.1055/s-0041-1735523. Epub 2022 May 5.
A standard method and parameter study were performed for the contralateral suppression test.
Our study aimed to determine the contralateral transient-evoked otoacoustic emission (TEOAE) suppression test method and stimulus-noise parameters that have a standard procedure and will enable the efferent system to be easily evaluated in clinics.
This study was conducted in two parts with two different groups of participants as a within-subjects design. In the first part, the signal-to-noise ratio at which maximum suppression obtained was investigated with 29 participants. In the second part, the optimal contralateral noise presentation method (in terms of noise-time or noise-sweep) was examined with 21 participants.
In the first part 29 young adults aged between 18 and 32 (23.03 ± 2.84), 20 females and 9 males, and in the second part 21 young adults aged between 19 and 34 years (mean age: 23.71 ± 3.48 years), 16 females and 5 males, participated in the second part. All participants had normal hearing.
To obtain maximum OAE suppression, different parameters were tested with the Otodynamics ILO292-II OAE device at both parts of the study in a double-walled audiometric test booths. Multirepeated analysis of variance, pairwise comparison, Friedman test, and Wilcoxon signed-rank tests were used for statistical analysis.
In the first part, maximum suppression was achieved at 65 dB peSPL (decibel peak-equivalent sound pressure level) TEOAE stimulus and 65 dB SPL broadband noise. In the second part, maximum suppression was obtained in noise-time method with 30 seconds "duration."
To provide standardization in clinics, it can be recommended that the contralateral suppression of OAEs was measured at 65 dB peSPL TEOAE stimulus and 65 dB SPL broadband noise in the linear stimulation mode with Otodynamics ILO 292-II double-probe OAE device. To obtain maximum suppression, the noise-time method with 30 seconds duration can be used.
对对比侧抑制测试进行了标准方法和参数研究。
我们的研究旨在确定对比侧瞬态诱发耳声发射（TEOAE）抑制测试方法和刺激噪声参数，这些方法和参数具有标准程序，将使传出系统在临床上易于评估。
本研究采用两部分和两组不同参与者的自身对照设计进行。在第一部分中，用 29 名参与者研究了获得最大抑制的信噪比。在第二部分中，用 21 名参与者研究了最佳的对侧噪声呈现方法（噪声时间或噪声扫频）。
在第一部分中，29 名年龄在 18 至 32 岁之间的年轻成年人（23.03±2.84 岁），20 名女性和 9 名男性；在第二部分中，21 名年龄在 19 至 34 岁之间的年轻成年人（平均年龄：23.71±3.48 岁），16 名女性和 5 名男性，均有正常听力。
为了获得最大的 OAE 抑制，在研究的两部分中，使用 Otodynamics ILO292-II OAE 设备，用不同参数在双层隔音测试间进行测试。使用多重复方差分析、两两比较、Friedman 检验和 Wilcoxon 符号秩检验进行统计学分析。
在第一部分中，最大抑制是在 65dB peSPL（分贝峰值等效声压级）TEOAE 刺激和 65dB SPL 宽带噪声下获得的。在第二部分中，在噪声时间方法中，30 秒“时长”获得最大抑制。
为了在临床上实现标准化，可以推荐使用 Otodynamics ILO 292-II 双探头 OAE 设备，以线性刺激模式，在 65dB peSPL TEOAE 刺激和 65dB SPL 宽带噪声下测量 OAE 的对比侧抑制。为了获得最大抑制，可以使用噪声时间方法，时长 30 秒。
