Janssen T
Laryngol Rhinol Otol (Stuttg). 1981 Sep;60(9):474-7.
After a brief review of Brainstem Evoked Response Audiometry (BERA) for clinical diagnosis of middle and inner ear hearing losses (Fig. 2, 3) and retrocochlear damages a new practical application is presented: Brainstem Evoked Response Audiometry in Tympanoplasty. Recordings of acoustically evoked brainstem potentials have been made in middle ear surgery in order to get direct objective information about the mobility of the stapes (Fig. 4) and the sound conducting mechanism of the middle ear after tympanoplasty (Fig. 5). Because of the damping factor of the middle ear after tympanoplastic reconstruction quantitative evaluation of sound transmission to the internal ear. Via brainstem potentials evoked by loudspeakers or probe tubes is difficult. Therefore, a special mechanical vibrating system for direct stimulation of the middle ear apparatus at various locations will have to be developed.
在对用于中耳和内耳听力损失临床诊断的脑干诱发反应测听法（BERA）（图2、3）以及蜗后损伤进行简要回顾之后，介绍了一种新的实际应用：鼓室成形术中的脑干诱发反应测听法。为了获得有关镫骨活动度（图4）以及鼓室成形术后中耳传音机制的直接客观信息，已经在中耳手术中进行了听觉诱发脑干电位的记录（图5）。由于鼓室成形术后重建中耳的阻尼因素，通过扬声器或探测管诱发的脑干电位对声音向内耳传递进行定量评估很困难。因此，必须开发一种特殊的机械振动系统，用于在不同位置直接刺激中耳装置。
