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听力学及言语疾病杂志JOURNAL OF AUDIOLOGY AND SPEECH PATHOLOGY
2000 Vol.8 No.4 P.202-204，246
畸变产物耳声发射幅值与超高频纯音听阈的关系
Distortion Product Otoacoustic Emissions and Ultrahigh Frequency Hearing in Young
Adults With Normal Clinic Hearing
胡宁 姜伟 郭宏光 汪磊
摘 要：目的探讨畸变产物耳声发射(distortion
products otoacoustic emmission, DPOAE)与超高频纯音听阈用于早期耳蜗性听力损害的听力监测的可能性。方法DPOAE以配对初始音诱发，两音强度均为70dBSPL，频率比为1∶1.2，频率范围0.5～8kHz。测定常规频率(125Hz～8kHz)及超高频率(9～20kHz)的纯音听阈。比较正常听阈组与不正常听阈组的DPOAE振幅的改变，对DPOAE幅值与纯音听阈进行相关分析和直线回归分析。结果受试者中，近半数耳存在超高频听阈升高。不正常听阈组DPOAE的高频段(3～6kHz)幅值显著低于正常听阈组(P<0.01)。DPOAE高频段平均幅值与11.2、12.5、14、16、18kHz的超高频听阈直线相关(r=0.601,P<0.01)。结论DPOAE的幅值与超高频纯音听阈具有一定的相关性，两者均可能用于监测早期的耳蜗性听力损害。
关键词：畸变产物耳声发射；听力测试；听阈；超高频；听力减退
文章编号：1006-7299(2000)04-0202-03
作者简介：胡宁(1963～)，男，安徽人，副主任医师，医学博士，主要从事耳科学和听力学的理论及应用研究。
作者单位：胡宁（海军总医院耳鼻咽喉科北京 100037）
姜伟（海军总医院耳鼻咽喉科北京 100037）
郭宏光（海军总医院耳鼻咽喉科北京 100037）
汪磊（海军总医院耳鼻咽喉科北京 100037）
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