Ding Xiuyong, Zhang Ruxiang, Xu Changjian, Fan Wei, Zhang Daoxing
Department of Otorhinolaryngology Head and Neck Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China.
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Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2014 Dec;49(12):1013-6.
To develop electrically evoked auditory brainstem response(EABR) modules of REZ-I domestic cochlear implant device, and testify the reliability and validity of the modules.
Postoperative EABR were recorded in guinea pigs by using the self-designed EABR module.
EABR waves were recorded in all 15 ears of 9 guinea pigs with normal hearing. The threshold was (159.00 ± 50.21) current level (CL) and eIII wave latency was (2.36 ± 0.46) ms of 100 µs pulse width stimulation; for 150 µs pulse width stimulation, the threshold was (131.44 ± 49.25) CL and eIII wave latency was (2.59 ± 0.46)ms; for 200 µs pulse width stimulation, the threshold was (119.63 ± 52.56) CL and e III wave latency was (2.62 ± 0.44)ms.
According the preliminary results of the study, the reliability and stability of the EABR modules of domestic cochlear implant device can meet the demands of EABR recording.
研发国产瑞兹-I型人工耳蜗装置的电诱发听性脑干反应（EABR）模块，并验证其可靠性和有效性。
采用自行设计的EABR模块记录豚鼠术后的EABR。
9只听力正常的豚鼠的15只耳均记录到EABR波。对于100μs脉宽刺激，阈值为（159.00±50.21）电流水平（CL），eIII波潜伏期为（2.36±0.46）ms；对于150μs脉宽刺激，阈值为（131.44±49.25）CL，eIII波潜伏期为（2.59±0.46）ms；对于200μs脉宽刺激，阈值为（119.63±52.56）CL，eIII波潜伏期为（2.62±0.44）ms。
根据本研究的初步结果，国产人工耳蜗装置EABR模块的可靠性和稳定性能够满足EABR记录的要求。
