Sorbonne Université, Inserm, Unité de Réhabilitation chirurgicale mini-invasive robotisée de l'audition, Paris, France.
AP-HP, GHU Pitié-Salpêtrière, Service ORL, Otologie, Implants auditifs et chirurgie de la base du crâne, Paris, France.
Eur Arch Otorhinolaryngol. 2019 Aug;276(8):2205-2213. doi: 10.1007/s00405-019-05467-9. Epub 2019 May 17.
Many bilaterally deaf adults are only able to receive one cochlear implant (CI), resulting in suboptimal listening performance, especially in challenging listening environments. Adding a contralateral routing of signal (CROS) device to a unilateral CI is one possibility to alleviate these challenges. This study examined the benefit of such a CROS device.
Thirteen adult subjects with at least 6 months of CI use, and no or limited benefit of a hearing instrument in the contralateral ear were included in the study. The perceived benefit of a CROS device in everyday listening environments was evaluated up to 1 year after initial fitting using several questionnaires. Speech intelligibility performance was determined using the French matrix sentence test in quiet and in two speech-in-noise setups and was followed for 3 months after CROS fitting.
Subjects indicated high satisfaction with the practical usability of the CROS device and long-term device retention was high. Perceived benefits in everyday listening environments were reported. Formal speech intelligibility tests revealed statistically significant median improvements of 6.93 dB SPL (Wilcoxon Z = 2.380, p = 0.017) in quiet and up to 8.00 dB SNR (Wilcoxon Z = 2.366, p = 0.018) in noise. These benefits were accessible immediately without a need for prolonged acclimatization.
Subjective satisfaction and device retention as well as speech intelligibility benefits in quiet and in noise prove the CROS device to be a valuable addition to a unilateral CI in cases of bilateral deafness where bilateral implantation is not an option.
许多双侧耳聋的成年人只能接受一个人工耳蜗（CI），导致听力表现不理想，尤其是在具有挑战性的听力环境中。向单侧 CI 添加对侧信号转导（CROS）设备是缓解这些挑战的一种可能性。本研究旨在探讨这种 CROS 设备的益处。
本研究纳入了 13 名成人受试者，他们至少有 6 个月的 CI 使用经验，并且在对侧耳中没有或仅有有限的助听设备受益。使用几种问卷评估了在最初佩戴后长达 1 年的日常听力环境中 CROS 设备的感知益处。使用法国矩阵句子测试在安静和两种噪声下的语音可懂度来确定言语可懂度表现，并在 CROS 佩戴后 3 个月进行随访。
受试者对 CROS 设备的实际可用性非常满意，长期设备保留率很高。报告了在日常听力环境中的感知益处。正式的言语可懂度测试显示，在安静环境中，中位数提高了 6.93dB SPL（Wilcoxon Z=2.380，p=0.017），在噪声中提高了高达 8.00dB SNR（Wilcoxon Z=2.366，p=0.018）。这些益处是立即获得的，不需要长时间适应。
主观满意度和设备保留率以及安静和噪声环境中的言语可懂度获益证明，在双侧耳聋的情况下，双侧植入不是一种选择时，CROS 设备是单侧 CI 的一种有价值的附加设备。
