The relationship between electrically evoked compound action potential and speech perception: a study in cochlear implant users with short electrode array.
The relationship between electrically evoked compound action potential and speech perception: a study in cochlear implant users with short electrode array.
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DOI：
10.1097/mao.0b013e3181ec1d92
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发表时间：
2010-09
期刊：
影响因子：
--
通讯作者：
Kim LS
中科院分区：
文献类型：
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作者：
Kim JR;Abbas PJ;Brown CJ;Etler CP;O'Brien S;Kim LS
确定电诱发复合动作电位（ECAP）测量值与植入短电极阵列的使用者的言语感知性能相关的程度，并根据特定器械研究ECAP测量值与性能之间的关系。前瞻性研究。三级转诊中心。本研究对17名混合型人工耳蜗植入者进行了测试。受试者分为2组：1）8名使用Nucleus Hybrid M，2）9名使用Nucleus Hybrid RE。此外，还对21名Nucleus Freedom长电极植入物（CI 24 RE）用户进行了测试，以与旧器械（CI 24 M）的结果进行比较。使用8或45 us的相间间隙（IPG）记录ECAP生长函数。然后，我们计算了1）生长函数的斜率，以及2）IPG的灵敏度变化。对于每个受试者，这些措施进行了比较，在测试中的文字识别。使用两个IPG的灵敏度变化与混合型人工耳蜗植入体用户的单词识别测试结果无关。相反，相对较强的相关性已被发现之间的斜率ECAP增长函数和性能的文字识别测试。此外，当我们分离混合M和RE的结果时，来自仅混合RE CI接受者的ECAP生长函数的斜率与言语性能显著相关。CI24RE长电极使用者的ECAP生长函数斜率也与性能显著相关。然而，比较RE器械中两种独立相关性，混合RE组的相关性更高。本文提出的结果支持这样的观点，即ECAP增长的斜率可以显示出与人工耳蜗植入体的性能的显着相关性。此外，这些结果表明，相关性的强度可能与特定设备有关。这些结果表明，ECAP措施可能是有用的，在开发一个测试，以预测与植入物的结果。
To determine the extent to which electrically evoked compound action potential (ECAP) measurements were related with speech perception performance in implant users with a short electrode array and to investigate the relationship between ECAP measures and performance according to specific devices. Prospective study. Tertiary referral center. Seventeen Hybrid cochlear implant users were tested in this study. Subjects were divided into 2 groups: 1) 8 using the Nucleus Hybrid M, 2) 9 using the Nucleus Hybrid RE. In addition, 21 Nucleus Freedom long electrode implant (CI24RE) users were also tested to compare with the results of the old device (CI24M). ECAP growth functions were recorded using either an interphase gap (IPG) of 8 or 45 us. We then calculated 1) the slope of the growth function, and 2) changes in sensitivity with IPG. For each subject, these measures were compared with performance on tests of word recognition. The changes in sensitivity using two IPGs showed no correlation with results of word recognition test in Hybrid cochlear implant users. In contrast, relatively strong correlations have been found between the slope of ECAP growth functions and performance on word recognition test. Additionally, when we separate the results of Hybrid M and RE, the slopes of ECAP growth functions from only Hybrid RE CI recipients were significantly correlated with speech performance. The slopes of ECAP growth function in CI24RE users with long electrode were also significantly correlated with performance. However, comparing between two independent correlations in RE devices, correlation was higher in Hybrid RE group. The results presented in this paper support the view that slope of the ECAP growth can show significant correlation to performance with a cochlear implant. Further, these results suggest that the strength of the correlation may be related to the specific device. These results suggest that ECAP measures may be useful in developing a test to predict outcomes with the implant.