Mausolf A, Laubert A
Klinik für HNO-Heilkunde, Medizinischen Hochschule Hannover.
HNO. 1990 Feb;38(2):50-5.
Recently, costly technical procedures have been used for the diagnosis of a retrocochlear hearing loss. Electrophysiological methods such as ERA, electrocochleography and promontory tests, and imaging procedures such as CT and MRI have been widely used. Here we demonstrate the diagnostic value of conventional audiometry in retrocochlear lesions. As the clinical audiometric picture shows, a retrocochlear lesion is based on electrophysiological conduction phenomena. The threshold tone decay, absence of stapedius reflex, reduced speech discrimination and ERA findings with electric response decay and synchronization disorders within the brain stem are particularly significant.
最近，昂贵的技术程序已被用于诊断蜗后性听力损失。诸如ERA、耳蜗电图和岬测试等电生理方法，以及诸如CT和MRI等成像程序已被广泛使用。在此，我们展示了传统听力测验法在蜗后性病变中的诊断价值。正如临床听力测验结果所示，蜗后性病变基于电生理传导现象。阈值音衰变、镫骨肌反射缺失、言语辨别力下降以及脑干内电反应衰变和同步障碍的ERA结果尤为显著。
