Böhme G
Laryngol Rhinol Otol (Stuttg). 1984 Mar;63(3):147-50.
Within a period of two years, we were able to observe five cases in which non-organic (functional) hearing defects occurred during infancy. The careful assessment of the case history and close observation, but also a differential-diagnostic audiological procedure in case of unstable hearing defects of unknown origin may disclose non-organic auditory communication disturbances. Based on our experience, the easily appreciated clinical picture is described. A pointer is supplied by the unstable auditory threshold in the tone audiogram. Integration of impedance audiometry and of acoustically evoked potentials (brain stem audiometry) into the individual audiometric experimental pattern is indispensable. In differential diagnosis it is essential to take into account fluctuating diseases of the internal ear, as well as high-grade auditory inattention as an expression of a partial conduction impairment.
在两年的时间里，我们观察到了5例在婴儿期出现非器质性（功能性）听力缺陷的病例。对病史进行仔细评估并密切观察，对于病因不明且听力缺陷不稳定的情况，进行鉴别诊断性听力学检查，可能会发现非器质性听觉交流障碍。根据我们的经验，描述了易于识别的临床症状。纯音听力图中不稳定的听阈可作为一个提示。将阻抗测听法和听觉诱发电位（脑干测听法）纳入个体听力测试模式中是必不可少的。在鉴别诊断中，必须考虑内耳的波动性疾病，以及作为部分传导障碍表现的高度听觉不注意。
