Preliminary exploration on pre-and post-operative EEG and BEAM in 60 patients treated with X-nife

Objective:Pre-and post-operative EEG and BEAM were analysed in 60 patients with brain disease treated with X-nife.Methods:The EEG and BEAM were taken in all patients before operation. Postoperative reexamination were taken in 53 patients. Results:The abnormal rate of EEG and BEAM was higher in cerebral AVM and malignant brain tumor patients than in benign brain tumor patients; postoperative EEG and BEAM improved in 10 patients（24.39%）, worsened in 16 patients（39.02）.Conclusion:The authors considered that the abnormal rate of EEG and BEAM was related to the nature of intracranial lesions. Although the EEG and BEAM were not as accurate as CT and MRI for the localization of intracranial lesions, it could reflect the effect of intracranial lesions on its peripheral brain tissue and provide some information about the changes of electrical activity of brain after resection of intracranial lesion.