摘要
目的:分析人工耳蜗电极植入前后圆窗耳蜗电图(RWEcochG)中耳蜗微音电位(CM)阈值的变化,以客观评估人工耳蜗植入手术是否对耳蜗基底膜造成损伤。方法:对40例拟行人工耳蜗植入术的患者在全身麻醉下行RWEcochG测试,分析植入电极前后CM阈值的变化。结果:40例人工耳蜗植入患者中,39例电极植入前后CM阈值相近,且在个别频率植入电极后CM阈值减小5dB;仅有1例患者电极植入后CM阈值比植入前明显增加,术中植入电极时有阻力感。结论:术中RWEcochG测试可以客观评估人工耳蜗植入手术本身是否对耳蜗基底膜造成损伤。
Objective： To objectively evaluate whether cochlear implantation surgery made damage to cochlear basal membrane or not through analyzing the change of the threshold of cochlear microphonic （CM） of round window electrocochleography before and after inserting electrode during cochlear implantation surgery. Method：Round window electrocochleography was performed on 40 cases with profound sensorineural deafness under general anesthesia in the standard operating room in order to analyze the change of the threshold of cochlear microphonic （CM） of round window electrocochleography before and after inserting electrode during cochlear implantation surgery. Result： Among the 40 cases, thresholds of cochlear microphonic （CM） before and after inserting electrode during cochlear implantation surgery were similar in 39 cases. The thresholds of cochlear microphonic （CM） after inserting electrode decreased about 5 dB at certain frequency. The thresholds of cochlear microphonic （CM） after inserting electrode increased 20～50 dB in only one case. There was a sense of resistance in implanting the electrodes in this patient. Conclusion：Use of round window electrocochleography may objectively evaluate whether cochlear im plantation surgery make damage to cochlear basal membrane or not.
出处
《临床耳鼻咽喉科杂志》
CSCD
北大核心
2006年第18期822-824,共3页
Journal of Clinical Otorhinolaryngology
关键词
耳蜗电图
人工耳蜗植入
Electrocochleography
Cochlear implantation
