Kiss József G, Tóth Ferenc, Nagy Attila L, Jarabin János, Szamosközi Alice, Torkos Attila, Jóri József, Czigner Jenö
Department of Otolaryngology, University of Szeged, H-6725 Szeged, Tisza Lajos krt. 111, Hungary.
Int Tinnitus J. 2003;9(1):59-60.
Programming of multichannel cochlear implants requires subjective responses to a series of sophisticated psychophysical percepts. It is often difficult for cochlear implant patients (especially young prelinguistically deaf children) to provide adequate responses for device fitting. However, the neural response telemetry (NRT) system renders possible the measurement of the compound action potential threshold. We performed NRT examinations in 27 cochlear implant users with Nucleus 24-channel cochlear implants. Measurements were obtained from five electrodes (3, 5, 10, 15, and 20) in each patient. Our goal was to look for correlation between behavioral subjective thresholds and compound action potentials. The action potentials could be elicited in 23 patients in all measured electrodes. The NRT threshold values were highly correlated with electrical threshold levels obtained through subjective responses. Our results suggest that the electrically elicited neural responses may yield very important information for device fitting in patients with cochlear implants.
多通道人工耳蜗的编程需要对一系列复杂的心理物理学感知做出主观反应。人工耳蜗患者（尤其是语前聋的幼儿）通常很难为设备调试提供充分的反应。然而，神经反应遥测（NRT）系统使得复合动作电位阈值的测量成为可能。我们对27名使用Nucleus 24通道人工耳蜗的患者进行了NRT检查。在每位患者的五个电极（3、5、10、15和20）上进行测量。我们的目标是寻找行为主观阈值与复合动作电位之间的相关性。在所有测量电极上，23名患者能够引出动作电位。NRT阈值与通过主观反应获得的电阈值水平高度相关。我们的结果表明，电诱发的神经反应可能为人工耳蜗患者的设备调试提供非常重要的信息。
