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当前,脑电图检查已成为诊断癫痫和颅内占位性病变的重要方法之一,并可为癫痫和颅内占位性病变的治疗提供有效的指征。由于脑电图检查无损伤性,易为病人接受,也便于开展普查。癫痫一、痫性放电癫痫是种经系统常见病,临床表现为发作性意识改变、抽搐、感觉障碍、植物神经功能紊乱以及精神异常等。癫痫发作主要是由于脑神经细胞兴奋性过度增高而产生的异常放电。此时,神经细胞呈现节律性高频放电达500周/秒(正常单个细胞为10～20周/秒)。同时细胞之间通过电场效应传递(而不通过突触传递),因而脑内大量神经细胞同时兴奋,产生过度同步化,出现阵发性高波幅放电。癫
Currently, electroencephalography has become an important method of diagnosis of epilepsy and intracranial space-occupying lesions, and can provide effective indications for the treatment of epilepsy and intracranial space-occupying lesions. EEG examination due to non-invasive, easy for the patient to accept, but also easy to carry out the census. Epilepsy First, the epileptic discharge Epilepsy is a common disease by the system, the clinical manifestations of seizures change, convulsions, sensory disturbances, autonomic dysfunction and mental disorders. Epileptic seizures are mainly due to abnormal excitability of the brain cells caused by abnormal discharge. At this point, the nerve cells showed a rhythmic high-frequency discharge of 500 weeks / second (normal single cells 10 to 20 weeks / second). At the same time, the cells pass the electric field effect (but not through the synaptic transmission), so a large number of brain nerve cells excited at the same time, resulting in excessive synchronization, paroxysmal high amplitude discharge. Epilepsy