摘要
目的 :研究人工耳蜗植入后电极阻抗的变化规律 ,以便确定术后进行映射调图的时间表。方法 :对16例植入NucleusCI 2 4M型人工耳蜗患者 ,于术中及术后 1、1.5、2、4、6个月进行电极阻抗测试 ,统计分析电极阻抗的变化规律。结果 :患者电极阻抗在术中检测时最低 ,开机时最高 ,以后若干次随访时 ,阻抗逐渐下降 ,并在2～ 4个月左右趋于稳定。结论 :电极阻抗的稳定提示耳蜗内生物组织的病理过程渐趋稳定 ;对心理物理测试配合良好的患者 ,术后只进行 2～
Objective:The primary goal of this study was to examine changes that may occur in electrode impedance over time in cochlear implant users. Secondary goal was to determine the timetable of mapping for patients who were cooperative quite well in psychophysical test. Method:Sixteen patients implanted with Nucleus CI24M participated in this study.The impedance of electrode was measured intra operatively, at initial stimulation, and at each mapping visits. Statistical analysis was conducted to assess how the changes occurring over time. Result:There was a significant increase in electrode impedance from the intra operative test to initial stimulation, and a significant decrease in impedance from initial stimulation to the following visit. The impedance values remained stable for approximately 2～4 months after initial stimulation. Conclusion:The results suggest that electrode tissue interface gradually tend to remain stable. If a patient cooperates quite well in psychophysics test, the psychophysical levels for the map should be stable after 2 to 4 month mapping.
出处
《临床耳鼻咽喉科杂志》
CSCD
北大核心
2003年第10期593-595,共3页
Journal of Clinical Otorhinolaryngology
关键词
人工耳蜗
电极阻抗
Cochlear implant
Impedance,map
