耳蜗和听觉传导功能异常引起的听觉障碍,在临床上主要通过耳声发射、耳蜗电图、听性脑干诱发反应来完成。这些方法都是较客观的检测方法。但是,这些方法仍然存在局限性,其应用前提都建立在患者有残余听力的基础上。对极重度和全聋的患者,以上的检测手段尚难以了解到这些患者的 Cochlear and auditory conduction abnormalities caused by hearing disorders, clinically mainly through the otoacoustic emissions, electrocautery, auditory brainstem response to complete. These methods are more objective detection methods. However, these methods still have limitations, and their application preconditions are based on patients with residual hearing. In patients with very severe and deaf, the above detection methods are still difficult to understand these patients