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目的 :探讨术中面神经监测的参数与面神经减压术后面瘫的预后之间的关系。方法 :对 15只健康新西兰家兔 30侧面神经及 2 1例周围性面瘫患者进行术中面神经监测 ,术后随访 6个月以上 ,使用 χ2 检验评估术中监测的情况与减压术后面瘫的预后之间的关系。结果 :15只家兔30侧面神经监测中不同个体的面神经阈值几乎均为 0 .0 5mA ,在面神经的水平段、垂直段、颞骨外段其阈值也几乎均为 0 .0 5mA。 2 1例面瘫患者 ,术中肌电图 (EMG)引出者 14例 ,其中 13例减压术后面瘫的预后好 ,1例预后差 ;EMG未引出者 7例 ,其中 1例减压术后面瘫的预后好 ,6例预后差。结论 :术中面肌EMG的阈值能够较客观、稳定地评估面神经的功能。术中面肌EMG能否引出可以辅助预测面神经减压术后面瘫的预后情况 ,EMG能引出者预后好 ,反之则差
Objective: To explore the relationship between the parameters of intraoperative facial nerve monitoring and the prognosis of facial paralysis after facial nerve decompression. Methods: Fifteen healthy New Zealand rabbits with 30 facial nerves and 21 peripheral facial paralysis patients underwent intraoperative facial nerve monitoring. The patients were followed up for 6 months or more. The χ2 test was used to evaluate the intraoperative monitoring and facial paralysis after decompression The relationship between the prognosis. Results: The facial nerve threshold of different individuals in 30 rabbits was almost 0. 05mA, and the thresholds in the horizontal segment, the vertical segment and the temporal bone segment of facial nerve were almost all 0 0 5mA. 21 cases of facial paralysis patients, intraoperative electromyography (EMG) leads to 14 cases, of which 13 cases of facial paralysis decompression after the good prognosis, 1 case of poor prognosis; EMG did not appear in 7 cases, including 1 case of decompression The prognosis of facial paralysis is good, 6 cases of poor prognosis. Conclusion: The threshold of intraoperative facial EMG can objectively and stably evaluate facial nerve function. Whether intraoperative EMG muscle can lead to prognosis of facial paralysis can assist in predicting facial nerve decompression, EMG can be drawn to the good prognosis, and vice versa