Truy E, Gallego S, Chanal J M, Collet L, Morgon A
Department of Otorhinolaryngology, de Chirurgie Cervico-Faciale et de Phoniatrie Hôpital Edouard Herriot, Lyon, France.
Laryngoscope. 1998 Apr;108(4 Pt 1):554-9. doi: 10.1097/00005537-199804000-00017.
To examine the relationships between psychophysical perceptions and the electrically evoked auditory brainstem responses (EABRs) in multichannel cochlear implant (CI) users and to determine the effectiveness of EABRs in electrode failure.
A descriptive study reported the EABR characteristics while the different electrodes were activated. Characteristics of the EABR and of the perceptual measures served as compared variables in a correlational study.
The study was carried out in the audiology clinic of an otolaryngology department at a university hospital.
The subjects consisted of nine consecutively selected habitual Digisonic DX1OR multichannel CI users. Seven patients were postlinguistically deafened adult patients; two were congenitally deaf children.
Ipsilateral recordings were performed using a previously published method. Morphology, latency, and amplitude measures of the EABR recordings were described, computed, and compared with the literature data for EABRs obtained while activating other types of CI and for acoustically evoked ABRs. Correlations between EABRs and behavioral perception thresholds were analyzed using the parametric Pearson's correlation test.
EABRs allowed the authors to detect failure of no. 10 electrode integrity in one child. Perceptual threshold measures were found to be highly significantly related to the EABR threshold across subjects and electrode position (n = 31, r = 0.98; P < 0.001; linear regression equation: perceptual threshold = 1.06 EABR threshold + 0.76). The latencies and amplitudes were found to be similar to those described in the literature.
EABRs may be used to estimate settings for the Digisonic DX10 CI even in a pediatric population, although they cannot entirely replace behavioral measurements, especially in children. The EABR can be employed for electrode dysfunction diagnosis. Further studies are needed to determine whether recordings of EABR quality could contribute to the evaluation of functional prognosis during the rehabilitation.
研究多通道人工耳蜗（CI）使用者的心理物理感知与电诱发听觉脑干反应（EABR）之间的关系，并确定EABR在电极故障检测中的有效性。
一项描述性研究报告了不同电极激活时的EABR特征。在相关性研究中，将EABR特征和感知测量特征作为比较变量。
该研究在一家大学医院耳鼻喉科的听力诊所进行。
受试者包括连续入选的9名习惯使用Digisonic DX1OR多通道CI的使用者。7名患者为语后聋成年患者；2名是先天性聋儿。
采用先前发表的方法进行同侧记录。描述、计算EABR记录的形态、潜伏期和振幅测量值，并与激活其他类型CI时获得的EABR文献数据以及声诱发ABR数据进行比较。使用参数Pearson相关检验分析EABR与行为感知阈值之间的相关性。
EABR使作者能够检测出一名儿童的第l0号电极完整性故障。发现感知阈值测量值与受试者和电极位置的EABR阈值高度显著相关（n = 31，r = 0.98；P < 0.001；线性回归方程：感知阈值 = 1.06×EABR阈值 + 0.76）。发现潜伏期和振幅与文献中描述的相似。
即使在儿科人群中，EABR也可用于估计Digisonic DX10 CI的设置，尽管它们不能完全替代行为测量，尤其是在儿童中。EABR可用于电极功能障碍的诊断。需要进一步研究以确定EABR质量记录是否有助于康复期间功能预后的评估。
