de Brito Rubens, Bittencourt Aline Gomes, Goffi-Gomez Maria Valéria, Magalhães Ana Tereza, Samuel Paola, Tsuji Robinson Koji, Bento Ricardo Ferreira
Otolaryngologist, PhD. Associate Professor, Department of Otolaryngology, University of São Paulo School of Medicine, São Paulo, Brazil.
Otolaryngologist, PhD student. Neurotology Fellow, Department of Otolaryngology, University of São Paulo School of Medicine, São Paulo, Brazil.
Int Arch Otorhinolaryngol. 2013 Jan;17(1):57-61. doi: 10.7162/S1809-97772013000100010.
Cochlear implants may guarantee sound perception and the ability to detect speech at a close-to-normal hearing intensity; however, differences have been observed among implantees in terms of performance on discrimination tests and speech recognition.
To identify whether patients with post-meningitis deafness perform similarly to patients with hearing loss due to other causes.
A retrospective clinical study involving post-lingual patients who had been using Nucleus-22 or Nucleus-24 cochlear implants for at least 1 year. These patients were matched with respect to age (± 2 years), time since the onset of deafness (± 1 year), and the duration of implant use with implant users who had hearing loss due to other causes. Speech perception was assessed using the Portuguese version of the Latin-American Protocol for the Evaluation of Cochlear Implants.
The sample consisted of 52 individuals (26 in each of the 2 groups). The post-meningitic group had a median of 18.5 active electrodes. The group with hearing loss due to other causes had a median of 21, but no significant statistical difference was observed (p = 0.07). The results of closed- and open-set speech recognition tests showed great variability in speech recognition between the studied groups. These differences were more pronounced for the most difficult listening tasks, such as the medial consonant task (in the vowel-consonant-vowel format).
Cochlear implant recipients with hearing loss due to bacterial meningitis, who had been using the device for 1 year performed more poorly on closed- and open-set speech recognition tests than did implant recipients with hearing loss due to other causes.
人工耳蜗可确保声音感知以及在接近正常听力强度下检测语音的能力；然而，在植入者之间，已观察到在辨别测试和语音识别表现方面存在差异。
确定脑膜炎后耳聋患者的表现是否与其他原因导致听力损失的患者相似。
一项回顾性临床研究，纳入了使用Nucleus-22或Nucleus-24人工耳蜗至少1年的语后聋患者。这些患者在年龄（±2岁）、耳聋 onset 时间（±1年）以及植入使用时长方面与其他原因导致听力损失的人工耳蜗使用者相匹配。使用拉丁美洲人工耳蜗评估协议的葡萄牙语版本评估语音感知。
样本包括52名个体（两组各26名）。脑膜炎后组的有源电极中位数为18.5个。其他原因导致听力损失的组的有源电极中位数为21个，但未观察到显著统计学差异（p = 0.07）。闭集和开集语音识别测试结果显示，研究组之间的语音识别存在很大差异。这些差异在最困难的听力任务中更为明显，例如中间辅音任务（以元音 - 辅音 - 元音形式）。
因细菌性脑膜炎导致听力损失且已使用该设备1年的人工耳蜗接受者，在闭集和开集语音识别测试中的表现比其他原因导致听力损失的人工耳蜗接受者更差。
