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在小脑桥脑角肿瘤手术时,面神经暂时损伤率为45％,永久损伤率为26.7％。用脑干听诱发反应(BAER)来监测这种损伤,结果不理想,因为常规的诱发反应住手术室电干扰环境下延迟和不敏感,另外不能反映面神经(内功能情况,当肿瘤引起同侧听力损害时,刺激患侧诱发的BAER很弱或缺如。而利用交叉声反射,给对侧声刺激监测同测面神经,用最适数字滤波法,监测实际时间内引起的脑干面神经诱发反应(BFER)是可行的。作者利用脑状
In the cerebellopontine angle tumor surgery, facial nerve temporary damage rate was 45%, the permanent damage rate was 26.7%. Brainstem auditory evoked response (BAER) to monitor this injury, the result is not satisfactory, because the conventional induced response room occupancy room electrical delay and insensitivity to the environment, the other can not reflect the facial nerve (internal function, when the tumor caused by ipsilateral In hearing impairment, the ipsilateral BAER is very weak or absent, while the contralateral acoustic stimulation is used to monitor the contralateral acoustic stimulation and the optimal digital filtering method is used to monitor the brainstem facial nerve-induced reaction in real time (BFER) is feasible. The authors use the brain