Welkoborsky H J, Amedee R G, Elkhatieb A, Mann W J
ENT Department, University Hospital, Mainz, Federal Republic of Germany.
Eur Arch Otorhinolaryngol. 1991;248(7):417-9. doi: 10.1007/BF01463567.
Out of 121 patients examined with acute unilateral facial paralysis, 93 were determined to have idiopathic facial palsy (Bell's palsy). The examination included pure-tone and speech audiometry, stapedial reflex recordings, temporal bone radiography and auditory-evoked brain-stem response testing (ABR). If a retrocochlear lesion was suspected, computed tomography or magnetic resonance imaging was performed. Patients with sensorineural hearing loss affecting all frequencies were compared to one group with hearing loss affecting only high frequencies and to another group with ABR findings suggesting a cochlear lesion. No association could be made between the etiology of these pathological results and the concurrent facial paresis. Most of them were probably caused by unrelated disorders of the auditory system. In cases with prolonged inter-peak latencies representing brain-stem responses, abnormal ABRs could be caused by the same pathology as the paralysis. This might well suggest the presence of a neuropathy in both the central auditory system and the facial tracts.
在121例接受急性单侧面瘫检查的患者中，93例被诊断为特发性面神经麻痹（贝尔麻痹）。检查包括纯音和言语听力测定、镫骨肌反射记录、颞骨放射摄影以及听觉诱发电位脑干反应测试（ABR）。如果怀疑有蜗后病变，则进行计算机断层扫描或磁共振成像。将所有频率均出现感音神经性听力损失的患者与仅高频听力损失的一组患者以及ABR结果提示有耳蜗病变的另一组患者进行比较。这些病理结果的病因与同时存在的面瘫之间没有关联。其中大多数可能是由听觉系统的无关疾病引起的。在代表脑干反应的峰间期延长的病例中，异常的ABR可能与导致面瘫的病理相同。这很可能表明中枢听觉系统和面部神经束均存在神经病变。
