2008•Journal of Clinical ElectroneurophysiologyRequires access

The value of blink reflex and brainstem auditory evoked potential in the diagnosis of acoustic neuroma

Han Pu

Abstract

Objective:To explore the value of blink reflex(BR)and brainstem auditory evoked potential(BAEP)in the diagnosis of acoustic neuroma(AN).Methods:Forty normal persons and 78 AN patients were examined with BR and BAEP respectively.Results:In 78 patients with AN the abnormality rate of BR was 97% and the abnormality rate of BAEP was 99% respectively,in which the abnormality rate of BR was 84% and the abnormality rate of BAEP was 95% respectively in 19 cases with small neuromas;in 59 cases with medum and large neuromas,BAEP of 44 cases disappeared.Conclusions:Subclinical lesions in brainstem,V and Ⅶ cranial nerves ware demonstrated by BR.The combined abnormality rate of BR and BAEP contvibates to the early diagnosis of AN.

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Key concepts: Abnormality, Corneal reflex, Brainstem auditory evoked potential, Brainstem, Subclinical infection, Audiology, Acoustic neuroma, Reflex