Allam Ahmed, Eldegwi Ahmed
Department of Otolaryngology, Mansoura University, Egypt.
J Otol. 2019 Dec;14(4):128-135. doi: 10.1016/j.joto.2019.06.002. Epub 2019 Jun 28.
To evaluate the efficacy of using neural response telemetry (NRT) thresholds in predicting behavioural thresholds during programming of cochlear implant in prelingual children.
Prospective study of 28 cochlear implants implanted with Nucleus 24 cochlear implant. We recorded NRT-thresholds on electrode numbers 1, 6, 11, 16 and 22 of the electrode array in each patient, the neural response thresholds were correlated with the behavioural map after six months of programming the device.
The mean neural response telemetry level was significantly higher than the mean threshold level (T-level) but lower than the comfortable level (C-level) in all the electrodes tested. NRT levels could statistically significantly predict T behavioural levels and comfortable behavioural levels, p < 0.01. There was a strong positive correlation between comfortable thresholds and neural response telemetry level measurements and behavioural threshold level and neural response telemetry threshold measurements.
There is a useful role for neural response telemetry values in predicting the behavioural threshold and comfortable values in prelingual children. Combining the NRT values with behavioural observations can improve the programming of cochlear implants.
评估在语前儿童人工耳蜗植入编程过程中，使用神经反应遥测（NRT）阈值预测行为阈值的有效性。
对28例植入Nucleus 24人工耳蜗的患者进行前瞻性研究。我们记录了每位患者电极阵列中第1、6、11、16和22号电极的NRT阈值，在设备编程6个月后，将神经反应阈值与行为图谱进行关联。
在所有测试电极中，平均神经反应遥测水平显著高于平均阈值水平（T水平）但低于舒适水平（C水平）。NRT水平在统计学上能显著预测T行为水平和舒适行为水平，p<0.01。舒适阈值与神经反应遥测水平测量值之间以及行为阈值水平与神经反应遥测阈值测量值之间存在强正相关。
神经反应遥测值在预测语前儿童的行为阈值和舒适值方面具有重要作用。将NRT值与行为观察相结合可改善人工耳蜗的编程。
