Department of Otolaryngology/Head & Neck Surgery, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.
Department of Audiology, UNC Health, Chapel Hill, North Carolina.
Otol Neurotol. 2024 Oct 1;45(9):1006-1011. doi: 10.1097/MAO.0000000000004281. Epub 2024 Aug 19.
Some cochlear implant (CI) recipients with unilateral hearing loss (UHL) have functional acoustic hearing in the implanted ear, warranting the fitting of an ipsilateral electric-acoustic stimulation (EAS) device. The present study assessed speech recognition and subjective hearing abilities over time for EAS users with UHL.
Prospective, repeated-measures.
Tertiary referral center.
Adult CI recipients with normal-to-moderate low-frequency acoustic thresholds in the implanted ear and a contralateral pure-tone average (0.5, 1, and 2 kHz) ≤25 dB HL.
Participants were evaluated preoperatively and at 1, 3, and 6 months post-activation. Speech recognition for the affected ear was evaluated with CNC words in quiet. Masked speech recognition in the bilateral condition was evaluated with AzBio sentences in a 10-talker masker (0 dB SNR) for three spatial configurations: target from the front and masker either colocated with the target or presented 90 degrees toward the affected or contralateral ear. Responses to the Speech, Spatial, and Qualities of Hearing Scale subscales were used to assess subjective hearing abilities.
Participants experienced significant improvements in CNC scores ( F(3,13) = 14.90, p < 0.001), and masked speech recognition in the colocated ( F(3,11) = 3.79, p = 0.043) and masker toward the contralateral ear ( F(3,11) = 4.75, p = 0.023) configurations. They also reported significantly better abilities on the Speech Hearing ( F(3,13) = 5.19, p = 0.014) and Spatial Hearing ( F(3,13) = 10.22, p = 0.001) subscales.
Adults with UHL and functional acoustic hearing in the implanted ear experience significant improvements in speech recognition and subjective hearing abilities within the initial months of EAS use as compared with preoperative performance and perceptions.
一些单侧听力损失（UHL）的人工耳蜗（CI）植入者在植入耳中具有功能性听觉，这需要为他们适配同侧电-声刺激（EAS）设备。本研究旨在评估单侧听力损失患者使用 EAS 后随时间推移的言语识别和主观听力能力。
前瞻性、重复测量。
三级转诊中心。
成人 CI 植入者，植入耳的低频纯音听阈正常至中度，对侧纯音平均听阈（0.5、1 和 2 kHz）≤25 dB HL。
参与者在术前和激活后 1、3 和 6 个月进行评估。使用 CNC 单词在安静环境下评估受影响耳的言语识别。使用 AzBio 句子在 10 位说话者掩蔽器（0 dB SNR）中评估双侧条件下的掩蔽言语识别，掩蔽器位于目标位置或与目标共位或指向受影响耳或对侧耳 90 度方向。使用言语、空间和听觉质量量表子量表的评分来评估主观听力能力。
参与者在 CNC 得分方面（ F(3,13) = 14.90，p < 0.001）和共位配置下的掩蔽言语识别（ F(3,11) = 3.79，p = 0.043）和掩蔽器指向对侧耳的配置下（ F(3,11) = 4.75，p = 0.023）的得分显著提高。他们还报告在言语听觉（ F(3,13) = 5.19，p = 0.014）和空间听觉（ F(3,13) = 10.22，p = 0.001）子量表的评分显著提高。
与术前表现和认知相比，单侧听力损失且在植入耳中具有功能性听觉的成年人在使用 EAS 的最初几个月内，言语识别和主观听力能力显著提高。
