Magliulo G, Zardo F
IV Ear, Nose, and Throat Clinic, Università La Sapienza, Rome, Italy.
Am J Otolaryngol. 1998 Mar-Apr;19(2):102-6. doi: 10.1016/s0196-0709(98)90103-x.
Facial nerve monitoring is often used to predict postoperative facial function after acoustic neuroma tumor removal. In this study, three methods of predicting facial nerve function were compared. These methods used various parameters of the evoked electromyographic monitoring.
Thirty-four patients who underwent surgery for acoustic neuroma were retrospectively reviewed. Amplitude of ongoing electromyographic activity, stimulation current thresholds, and the amplitude of evoked response were analyzed. The predictive value of the three methods was compared with actual postoperative facial nerve function.
One method predicted the final postoperative facial function in 90% of the patients, one method in 84%, and the final method failed to predict the final VIIth nerve function in patients with current stimulation thresholds greater than 0.05 mA.
Analysis of prognostic value showed that one of the three studied proved superior in predicting facial nerve function.
面神经监测常用于预测听神经瘤切除术后的面部功能。在本研究中，对三种预测面神经功能的方法进行了比较。这些方法使用了诱发肌电图监测的各种参数。
对34例接受听神经瘤手术的患者进行回顾性研究。分析了持续肌电活动的幅度、刺激电流阈值和诱发反应的幅度。将这三种方法的预测价值与术后实际面神经功能进行比较。
一种方法在90%的患者中预测了最终术后面部功能，一种方法在84%的患者中预测成功，而最后一种方法在电流刺激阈值大于0.05 mA的患者中未能预测最终的Ⅶ神经功能。
预后价值分析表明，所研究的三种方法之一在预测面神经功能方面表现更优。
