Electrically evoked ABR during cochlear implantation and postoperative development of speech and hearing abilities in infants with common cavity deformity as a type of inner ear malformation.
Electrically evoked ABR during cochlear implantation and postoperative development of speech and hearing abilities in infants with common cavity deformity as a type of inner ear malformation.
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共腔畸形（一种内耳畸形）婴儿在人工耳蜗植入过程中以及术后言语和听力能力发育过程中的电诱发 ABR。
DOI：
10.1080/00016489.2019.1692147
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Enomoto C.
中科院分区：
文献类型：
--
作者：
Kaga K;Minami S;Enomoto C.
背景：共腔（CC）畸形人工耳蜗植入过程中的电诱发听性脑干反应（eABR）尚未在临床上得到充分研究。目的：探讨CC畸形婴儿人工耳蜗植入过程中的eABR波配置、术后听力发展及教育环境。材料与方法：9例先天性耳聋，经颞骨检查发现CC畸形并疑似耳蜗神经缺损的婴儿。研究了 CT 和 MRI。他们均接受了序贯单侧人工耳蜗植入，并在手术过程中记录了他们的 eABR。结果：9例CC畸形婴儿的eABR均显示，诱发波V（eV）的平均峰值潜伏期与对照组相同，但阈值较对照组高出2倍，术后听力阈值明显提高。结论及意义：根据eABR的eV峰值潜伏期，可判断婴儿脑干听觉通路完好。他们的言语和听力能力的术后发展以及他们的教育环境各不相同，这可能是因为他们的 eABR 阈值提高了一倍，而听觉神经单元的数量有限。
Background:The electrically evoked auditory brainstem response (eABR) during cochlear implantation in common cavity (CC) deformity has not been clinically well studied.Aim/Objective:To investigate the eABR wave configuration during cochlear implantation, the postoperative development of hearing, and educational settings in infants with CC deformity.Materials and Methods:Nine infants who were congenitally deaf and found to have CC deformity and suspected cochlear nerve deficiency by temporal bone CT and MRI were studied. All of them underwent sequential and unilateral cochlear implantation and their eABRs were recorded during the surgery. The postoperative development was followed up.Results:eABRs of all the nine infants with CC deformity showed that the mean peak of the evoked wave V (eV) was the same as that in controls at latencies but was twofold higher than that in controls at thresholds and their postoperative hearing thresholds improved markedly.Conclusion and Significance:The brainstem auditory pathways of the infants were considered intact on the basis of the eV peak latencies in the eABRs. The postoperative development of their speech and hearing abilities and their educational settings varied, probably because of the twofold higher thresholds of their eABRs and limited number of auditory neural units.