Department of Otolaryngology, Shengli Clinical Medical College of Fujian Medical University, Fujian Provincial Hospital, Fuzhou, China.
Acta Otolaryngol. 2021 Dec;141(12):1055-1062. doi: 10.1080/00016489.2021.1998614. Epub 2021 Nov 20.
Higher probe tone frequencies have been shown to increase the elicitation rates in electrically evoked stapedius reflex threshold (eSRT) measurements.
To determine the optimal probe tone frequency for contralateral eSRT measurements at individual electrodes in children with unilateral cochlear implants and to assess the relationship between eSRTs for this frequency and most comfortable levels (M-levels).
Contralateral eSRT measurements with three probe tone frequencies (226, 678, and 1000 Hz) at individual electrodes were performed on 26 paediatric Advanced Bionics cochlear implant recipients.
The elicitation rates of eSRTs for 226, 678, and 1000 Hz probe tones were 73.08% (57/78), 88.46% (69/78), and 88.46% (69/78), respectively. The average eSRT for the 1000 Hz probe tone was significantly lower than those for 226 and 678 Hz probe tones (<.001 and =.009, respectively). ESRTs for the 1000 Hz probe tone and M-levels were significantly correlated at all tested electrodes (all <.001).
The optimal probe tone frequency for contralateral eSRT measurement at individual electrodes in children with unilateral cochlear implants is 1000 Hz. ESRTs for the 1000 Hz probe tone are significantly correlated with M-levels and can be used to guide the M-levels setting in these children.
较高的探测音频率已被证明可以提高电诱发镫骨肌反射阈（eSRT）测量中的引出率。
确定在单侧人工耳蜗植入儿童的个体电极上进行对侧 eSRT 测量的最佳探测音频率，并评估该频率的 eSRT 与最舒适水平（M 水平）之间的关系。
对 26 名儿科先进仿生耳蜗植入者的个体电极进行了三种探测音频率（226、678 和 1000Hz）的对侧 eSRT 测量。
226、678 和 1000Hz 探测音的 eSRT 引出率分别为 73.08%（57/78）、88.46%（69/78）和 88.46%（69/78）。1000Hz 探测音的平均 eSRT 明显低于 226Hz 和 678Hz 探测音（<.001 和 =.009）。在所有测试电极上，1000Hz 探测音的 eSRT 与 M 水平均呈显著相关性（均<.001）。
单侧人工耳蜗植入儿童个体电极对侧 eSRT 测量的最佳探测音频率为 1000Hz。1000Hz 探测音的 eSRT 与 M 水平显著相关，可用于指导这些儿童的 M 水平设置。
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