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首页> 外文期刊>The Laryngoscope: A Medical Journal for Clinical and Research Contributions in Otolaryngology, Head and Neck Medicine and Surgery, Facial Plastic and Reconstructive Surgery .. >Central effects of residual hearing: implications for choice of ear for cochlear implantation.
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Central effects of residual hearing: implications for choice of ear for cochlear implantation.

机译：残余听力的主要影响：人工耳蜗植入对耳朵选择的影响。

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OBJECTIVES/HYPOTHESIS: The study tested the hypothesis that among patients with similar levels of residual hearing in the nonimplanted ear, speech perception outcome is the same whether or not the implanted ear has profound or severe levels of hearing loss. STUDY DESIGN: Retrospective. METHODS: Levels of hearing loss in postlingually deafened adults who had cochlear implantation at Johns Hopkins University (Baltimore, MD) between 1991 and 2002 were classified according to pure-tone averages as bilateral severe (n = 20), severe-profound (severe in one ear and profound in the other) (n = 23), and bilateral profound (n = 43). There was no significant difference in the age at onset and duration of deafness among the three patient groups. Individuals in the bilateral severe and severe-profound groups had comparable levels of severe hearing loss in their nonimplanted ears, whereas those in severe-profound and bilateral profound groups had comparable levels of profound hearing loss in their implanted ears. Speech perception performance was evaluated using words from the Consonant Nucleus Consonant word list, Hearing in Noise Test sentences in quiet, and Central Institute for the Deaf sentences through recorded presentation at 70 dB sound pressure level (SPL). RESULTS: Despite the profound hearing loss of the implanted ear in the asymmetrical group, there was no significant difference in mean speech perception scores compared with the bilateral severe group within the first year after implant surgery. By comparison, the bilateral profound group had lower speech perception results compared with patients with residual hearing in one or both ears. CONCLUSION: The study results suggest that implantation of the profoundly deafened ear does not diminish the functional advantage conferred by residual hearing in a patient with asymmetrical hearing loss. Therefore, the central auditory pathway may be the site at which persistent auditory function has its most beneficial effects.
机译：目的/假设：该研究检验了以下假设：在未植入的耳朵中残留听力水平相似的患者中，无论植入的耳朵是否患有严重或严重的听力损失，语音感知结果都是相同的。研究设计：回顾性研究。方法：根据纯音平均值，将1991年至2002年在约翰·霍普金斯大学（巴尔的摩，马里兰州）进行耳蜗植入的舌后失聪的成年人的听力损失水平按双边严重程度（n = 20），严重程度深重（重度一只耳朵，另一只耳朵深（n = 23），而双侧耳朵（n = 43）。在这三个患者组中，耳聋的发病年龄和持续时间没有显着差异。双边重度和重度深重组中的个体在其非植入的耳朵中具有可比较的严重听力损失水平，而重度深重和双边深度组中的个体在其植入的耳朵中具有可比较的严重听力损失水平。通过以70 dB声压级（SPL）录制的演示文稿，使用“辅音核辅音”单词列表，“安静的听力测试”句子和“中央聋人”句子中的单词评估语音感知性能。结果：尽管不对称组的植入物耳朵严重失聪，但在植入手术后的第一年内，平均语音知觉得分与双侧重度组相比没有显着差异。相比之下，与一只或两只耳朵残留听力的患者相比，双侧深刻人群的语音感知结果较低。结论：研究结果表明，对于不对称听力损失的患者，植入严重耳聋的耳并不会削弱残余听力所带来的功能优势。因此，中央听觉通路可能是持续听觉功能发挥其最有益作用的部位。

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