Scholarlink

<p>Intracochlear electrodes in cochlear implants (CIs) offer a novel method for recording auditory brain activity without external EEG equipment, addressing challenges in pediatric CI users. This study tested the feasibility of recording electrically evoked cortical auditory potentials (eCAEPs) directly via the CI system. Twenty children and three adults with bilateral Advanced Bionics CIs participated. A brief electrical stimulus was delivered to one CI, while the contralateral CI recorded responses using a basal electrode referenced to the case. Each session included stimulus and non-stimulus sweeps, with averaging over 600 ms revealing clear eCAEP patterns. All participants exhibited obligatory P1, N1, and P2 peaks within a test duration of under five minutes. The method showed good test–retest repeatability and expected latency shifts occurred with stimulus level adjustments. Compared to scalp recorded EEG, intracochlear recordings produced significantly larger amplitudes with similar latencies. Early implanted children displayed distinct eCAEP patterns, and better performing CI users had earlier P1 responses. This recording approach provides a robust, non-invasive tool for monitoring CI users, particularly young children, offering potential advancements in post-implantation assessment and intervention by eliminating external equipment while ensuring reliable recordings.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Direct recording of electrically evoked cortical potentials from cochlear implants demonstrates feasibility and clinical relevance in pediatric users

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年7月2日

查看全文
  • Suhail HabibAllah,
  • Chen Chen,
  • Joseph Attias

摘要

Intracochlear electrodes in cochlear implants (CIs) offer a novel method for recording auditory brain activity without external EEG equipment, addressing challenges in pediatric CI users. This study tested the feasibility of recording electrically evoked cortical auditory potentials (eCAEPs) directly via the CI system. Twenty children and three adults with bilateral Advanced Bionics CIs participated. A brief electrical stimulus was delivered to one CI, while the contralateral CI recorded responses using a basal electrode referenced to the case. Each session included stimulus and non-stimulus sweeps, with averaging over 600 ms revealing clear eCAEP patterns. All participants exhibited obligatory P1, N1, and P2 peaks within a test duration of under five minutes. The method showed good test–retest repeatability and expected latency shifts occurred with stimulus level adjustments. Compared to scalp recorded EEG, intracochlear recordings produced significantly larger amplitudes with similar latencies. Early implanted children displayed distinct eCAEP patterns, and better performing CI users had earlier P1 responses. This recording approach provides a robust, non-invasive tool for monitoring CI users, particularly young children, offering potential advancements in post-implantation assessment and intervention by eliminating external equipment while ensuring reliable recordings.