Di Berardino Federica, Zanetti Diego, Soi Daniela, Costa Lara Dalla, Burdo Sandro
Department of Specialist Surgical Sciences, Audiology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy.
Department of Clinical Sciences and Community Health, University of Milan, 20122 Milano, Italy.
Audiol Res. 2021 Jan 21;11(1):22-30. doi: 10.3390/audiolres11010003.
The purpose of the study was to examine the subjective and objective potential advantage for speech understanding in noise achieved by cochlear implant (CI) recipients when using the autosensitivity control (ASC) input signal processing in combination with the adaptive dynamic range optimization (ADRO). Eighteen subjects (8 females, 10 males, mean age 17.7 ± 6.7) were enrolled in a prospective open blinded comparative study between the ASC + ADRO condition vs. the ADRO alone; 16 were sequential binaural and 2 were monoaural CI recipients. All patients had been wearing their CI for at least 3 years, had no additional disabilities, had an age-appropriate receptive and expressive language. Word recognition performances in noise (at signal-to-noise ratio +5 dB HL) were significantly better in the ADRO-alone condition than in the ADRO + ASC condition. ( = 0.03) These objective outcomes were in agreement with the subjective reports. No significant difference was found in quiet. Our results, apparently in contrast with other reports in the literature, suggest that the decision of adding the slow-acting automatic reduction in microphone sensitivity provided by ASC should be limited to selected CI recipients.
本研究的目的是检验人工耳蜗（CI）植入者在使用自动灵敏度控制（ASC）输入信号处理与自适应动态范围优化（ADRO）相结合时，在噪声环境中对言语理解的主观和客观潜在优势。18名受试者（8名女性，10名男性，平均年龄17.7±6.7岁）参与了一项前瞻性开放盲法比较研究，比较ASC+ADRO条件与单独使用ADRO的情况；16名是顺序双耳植入者，2名是单耳CI接受者。所有患者佩戴CI至少3年，无其他残疾，具备与其年龄相符的接受性和表达性语言能力。在单独使用ADRO的情况下，噪声环境中（信噪比为+5 dB HL）的单词识别表现显著优于ADRO+ASC条件下的表现（P = 0.03）。这些客观结果与主观报告一致。在安静环境中未发现显著差异。我们的结果显然与文献中的其他报告相反，表明是否添加由ASC提供的麦克风灵敏度的缓慢自动降低这一决定应仅限于选定的CI接受者。
