单侧突聋患者对侧耳高刺激率ABR结果分析

Analysis of Contralateral High-frequency Stimulation ABR in Patients with Unilateral Sudden Deafness

程莉雅;毕巍;刘吉祥;武斐;邢轶卓;

1:天津医科大学研究生院

2:天津市人民医院耳鼻喉头颈外科

摘要
目的研究单侧突聋患者对侧耳高刺激率ABR的特点及临床应用价值。方法对40例(40耳)1745岁单侧突聋患者(病例组)的健耳及同龄听力正常人20例(40耳,对照组)双耳分别进行纯音测听和高(55.1次/秒)、低(11.1次/秒)刺激率听性脑干反应(ABR)检测,以两种刺激率下ABR I-V波间期(interpeak latency,IPL)差值(△IPL)>0.28为异常,比较两组检测结果及I-V△IPL异常率。结果①病例组健耳和对照组各频率纯音听阈无统计学差异;②病例组健耳高刺激率ABR波I潜伏期比对照组明显延长(P<0.001),其余各波潜伏期、波间期及波Ⅴ反应阈均无统计学差异;③病例组健耳Ⅰ-Ⅴ波间期差值异常率为62.5%(25/40),对照组为5%(2/40),病例组高于对照组(χ2=29.574,P<0.001)。结论单侧突聋患者健耳高刺激率ABR波I潜伏期明显延长,高、低刺激率ABRⅠ-Ⅴ波间期差异常率明显增加,提示单侧突聋患者对侧耳可能同时存在内耳血供异常。
关键词
突发性聋;听性脑干反应;刺激率
基金项目(Foundation):
作者
程莉雅;毕巍;刘吉祥;武斐;邢轶卓;
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