孤独症儿童脑干听觉诱发电位及耳声发射研究

Chinese Archives of Otolaryngology-Head and Neck Surgery(2009)

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Abstract
目的探讨孤独症对听觉系统功能的影响,为临床诊治提供理论依据。方法对20例孤独症患儿进行听觉脑干诱发电位(auditory brainstem response, ABR)及畸变产物耳声发射(distortion product otoacoustic emission,DPOAE)测试,设立同年龄段正常组进行对照研究。结果①孤独症组ABR双耳Ⅴ波潜伏期、右耳Ⅰ~Ⅴ波间期、Ⅲ~Ⅴ波间期延长,与对照组比较有显著性差异(P<0.05);②孤独症组DPOAE异常率增高,1kHz及1.5kHz平均幅值及1kHz引出率降低,与对照组比较有显著性差异(P<0.05)。结论孤独症儿童ABR潜伏期延长,DPOAE测试异常率增高,提示脑干听觉通路传导异常,可能是引起孤独症儿童广泛感觉系统发育障碍,使言语、认知、社会等方面异常发育的原因之一。
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Key words
Otoacoustic Emissions,Evoked Potentials,Autistic Disorder,Spontaneous,Auditory,Brain Stem,Child
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