瞬目反射与面神经电图在Bell麻痹患者中的应用

Application of electroneurography and blink reflex in patients with Bell's palsy

目的：探讨瞬目反射与面神经电图在Bell麻痹患者中的应用价值。方法：对15例Bell麻痹患者发病3—5d进行了瞬目反射与面神经电图的检测，1个月后对其中9例患者进行了复查。结果：发病3—5d主要表现在患侧瞬目反射R1、R2波消失10例，患侧R1、R2和R2＇波延长5例，异常率100％；患侧面神经电图测定，潜伏期延长2例，波幅损失率〈50％的14例，50％～80％1例，异常率为20％。瞬目反射的异常率明显高于面神经电图的异常率。1个月后对9例患侧BR缺如的患者随访，有2例可检出波形，潜伏期延长，好转率为19％，7例患侧BR仍然未引出。面神经电图患侧潜伏期延长3例，波幅损失率〈50％的2例，50％～80％2例，〉80％5例，异常率100％，与急性期相比有明显差异。结论：瞬目反射可作为Bell麻痹早期诊断的客观指标，恢复期面神经电图波幅损失率对预后评估有重要意义。

Objective： To evaluate the application of blink reflex and electroneurography in the patients with Bell＇ s palsy. Method： Blink reflex and electroneurography were performed in 15 patients with Bell＇ s palsy 3 to 5 days after the onset of the illness. Nine of them were rechecked one month later. Result： The abnormality rate of blink reflex was 100% on the 3 - 5day. The abnormality rate of electro- neurography was 20%. In the one - month - later follow - up, two eases with disappeared BR before eould detected the wave and delayed laeency. The improvement rate of BR was 19%, the abnormality rate of electroneurography was 100%, the difference was significant compared with the results of the acute stage. Conclusion： Blink reflex is an objective index in the early diagnosis of Bell＇ s palsy. In convalescence stage, reduced amplidute eleetroneurography has important significance in the evaluation of prognosis.