Holden Laura K, Uchanski Rosalie M, Dwyer Noël Y, Reeder Ruth M, Holden Timothy A, Firszt Jill B
Department of Otolaryngology-Head and Neck Surgery, Washington University School of Medicine, St. Louis, MO, USA.
Program in Audiology & Communication Sciences, Washington University School of Medicine, St. Louis, MO, USA.
Trends Hear. 2025 Jan-Dec;29:23312165251359415. doi: 10.1177/23312165251359415. Epub 2025 Jul 30.
The study aimed to improve outcomes in Nucleus cochlear implant (CI) recipients with single-sided deafness (SSD) by reducing interaural frequency and loudness mismatches through device programming. In Experiment 1a, a modified frequency allocation table (FAT) was created to better match the tonotopicity of the contralateral ear and reduce interaural frequency mismatch. Twenty experienced SSD-CI users completed localization and speech recognition tests with their everyday FAT. Tests were repeated after 6 weeks' use of the modified FAT. Participants compared both FATs for 2 weeks before being tested again with each. For 10 newly implanted SSD-CI recipients (Experiment 1b), Group A was programmed with the manufacturer's default FAT and Group B with the modified FAT at activation. Speech recognition and localization were completed, after 6 weeks' use of each FAT. Participants then compared both FATs before testing with each. In Experiment 2, 15 experienced SSD-CI users were evaluated with their everyday program and a modified loudness program, which was created to obtain audibility of ∼20 dB HL from 0.25 to 6 kHz and balanced loudness between ears. Three test sessions occurred, resembling Experiment 1a. Experienced participants in Experiments 1a and 2 showed significant improvement in one speech-in-noise task with a modified program compared to the everyday program. Newly implanted recipients showed no significant difference in results between FATs. Results indicate that modified programs, created to reduce interaural mismatches, may improve outcomes. The first month after activation might be too early to compare FATs as SSD-CI recipients are adjusting to electric hearing.
该研究旨在通过设备编程减少双耳间的频率和响度不匹配，从而改善单侧耳聋（SSD）人工耳蜗（CI）植入者的治疗效果。在实验1a中，创建了一个改良的频率分配表（FAT），以更好地匹配对侧耳的音调定位并减少双耳间的频率不匹配。20名经验丰富的SSD-CI使用者使用他们日常的FAT完成了定位和语音识别测试。在使用改良后的FAT 6周后重复进行测试。参与者在再次分别使用两种FAT进行测试前，对两种FAT进行了两周的比较。对于10名新植入的SSD-CI接受者（实验1b），A组在激活时采用制造商的默认FAT进行编程，B组采用改良后的FAT进行编程。在分别使用每种FAT 6周后完成语音识别和定位。然后参与者在分别使用每种FAT进行测试前对两种FAT进行了比较。在实验2中，15名经验丰富的SSD-CI使用者使用他们的日常程序和一个改良的响度程序进行评估，该改良响度程序旨在使0.25至6千赫的声音可听度达到约20分贝听力级（dB HL），并平衡双耳间的响度。进行了三个测试阶段，类似于实验1a。与日常程序相比，实验1a和2中的经验丰富的参与者在使用改良程序的一项噪声环境下言语测试任务中表现出显著改善。新植入者在两种FAT的测试结果上没有显著差异。结果表明，为减少双耳间不匹配而创建的改良程序可能会改善治疗效果。激活后的第一个月可能太早，无法比较FAT，因为SSD-CI接受者正在适应电听觉。
