Haginomori Shin-Ichi
Department of Otolaryngology-Head and Neck Surgery, Osaka Medical and Pharmaceutical University School of Medicine, 2-7 Daigakumachi, Takatsuki, Osaka 569-8686, Japan.
Auris Nasus Larynx. 2023 Apr;50(2):180-186. doi: 10.1016/j.anl.2022.08.010. Epub 2022 Aug 31.
Two electrophysiological tests for facial palsy-electroneurography (ENoG) and nerve excitability test (NET)-were reviewed. ENoG has advantages over NET in that it reflects the percentage of degenerated facial nerve fibers and can provide an accurate prognosis. However, as disadvantages, ENoG requires large, expensive equipment, and such supramaximal electrical stimulation can be quite painful for patients. NET is less painful due to weak stimulation with just enough current to meet the threshold, and the required equipment is compact and inexpensive to procure. However, it is impossible to calculate the percentage of degenerated nerve fibers, and NET is inferior to ENoG in terms of accurate prognostic prediction for facial palsy. The appropriate timing for both ENoG and NET is 7 to 10 days after the onset. While ENoG has proven more popular than NET because of its accuracy for prognostic prediction, we should not predict the prognosis of facial palsy based solely on the results of electrophyisiolgical examinations; a comprehensive evaluation including the facial muscle grading system is essential.
对两种用于面瘫的电生理测试——面神经电图（ENoG）和神经兴奋性测试（NET）进行了综述。ENoG比NET具有优势，因为它能反映面神经纤维变性的百分比，并能提供准确的预后情况。然而，ENoG也有缺点，它需要大型、昂贵的设备，而且这种超强电刺激对患者来说可能相当痛苦。NET由于刺激较弱，仅用足以达到阈值的电流，所以痛苦较小，并且所需设备紧凑且采购成本低廉。然而，无法计算变性神经纤维的百分比，而且在面瘫的准确预后预测方面，NET不如ENoG。ENoG和NET的合适检测时间均为发病后7至10天。虽然由于其预后预测的准确性，ENoG已被证明比NET更受欢迎，但我们不应仅基于电生理检查结果来预测面瘫的预后；包括面部肌肉分级系统在内的综合评估至关重要。
