Department of Otolaryngology/Head and Neck Surgery, Charité, Medical University of Berlin, Berlin, Germany.
Laryngoscope. 2011 Dec;121(12):2634-40. doi: 10.1002/lary.22377.
OBJECTIVES/HYPOTHESIS: To evaluate the effect of technological advances in the past 20 years on the hearing performance of a large cohort of adult cochlear implant (CI) patients.
Individual, retrospective, cohort study.
According to technological developments in electrode design and speech-processing strategies, we defined five virtual intervals on the time scale between 1984 and 2008. A cohort of 1,005 postlingually deafened adults was selected for this study, and their hearing performance with a CI was evaluated retrospectively according to these five technological intervals. The test battery was composed of four standard German speech tests: Freiburger monosyllabic test, speech tracking test, Hochmair-Schulz-Moser (HSM) sentence test in quiet, and HSM sentence test in 10 dB noise.
The direct comparison of the speech perception in postlingually deafened adults, who were implanted during different technological periods, reveals an obvious improvement in the speech perception in patients who benefited from the recent electrode designs and speech-processing strategies. The major influence of technological advances on CI performance seems to be on speech perception in noise.
Better speech perception in noisy surroundings is strong proof for demonstrating the success rate of new electrode designs and speech-processing strategies. Standard (internationally comparable) speech tests in noise should become an obligatory part of the postoperative test battery for adult CI patients.
目的/假设：评估过去 20 年技术进步对大量成年人工耳蜗（CI）患者听力表现的影响。
个体、回顾性、队列研究。
根据电极设计和言语处理策略的技术发展，我们在 1984 年至 2008 年的时间尺度上定义了五个虚拟间隔。选择了 1005 名后天失聪的成年人进行这项研究，并根据这五个技术间隔回顾性评估他们的 CI 听力表现。测试电池由四个标准德语语音测试组成：弗赖堡单音节测试、语音跟踪测试、安静环境下的 Hochmair-Schulz-Moser (HSM) 句子测试和噪声环境下的 HSM 句子测试。
对不同技术时期植入的后天失聪成年人的语音感知进行直接比较，发现受益于最近的电极设计和言语处理策略的患者的言语感知有明显提高。技术进步对 CI 性能的主要影响似乎在于噪声中的言语感知。
在嘈杂环境中更好的语音感知是证明新的电极设计和言语处理策略成功率的有力证据。噪声环境下的标准（国际可比）语音测试应成为成年 CI 患者术后测试电池的必备部分。
