脑梗死继发癫痫的脑电图与经颅多普勒分析

Analysis of EEG,TCD in secondary epilepsy patients with cerebral infarction

目的探讨脑梗死继发癫痫的脑电图与经颅多普勒改变的关系。方法40例脑梗死继发癫痫患者行脑电图及经颅多普勒检测,并进行统计分析。结果EEG异常38例,异常率95%,TCD异常35例,异常率为87.5%。异常脑电图主要表现为低至中幅慢波增多,呈弥漫性或局限性分布,38例异常脑电图中9例出现痫样放电;TCD改变表现为血流速度增快、减慢或不对称,频谱形态改变呈高阻型,TCD以血流速度增快具多。结论脑梗死后继发癫痫的EEG阳性率较高,但癫痫放电检出率较低;癫痫病灶一侧的脑血流速度多数增快,血流速度增快一侧对癫痫判定更有意义。

Objective To explore the relationship between EEG feature and TCD with secondary epileply in cerebrul infarction. Methods EEG and TCD were done and analyzed in 40 patients with secondary epileply in cerebrul infarction. Results The EEG abnormality rate was 95 %, TCD abnormaity rate was 87.5 %, abnormal EEG mainly showed increase of slow waves with low to middle amplitude, with diffuse or local distribution, epileptiform discharges were ~oumd only in 9 of the 38 ones, cerebral blood flow（CBF） was increased, decreased or bilateral dissymmetry,abnormal spectral frequency（higher force）. Conclusion The abnormality rate of EEG is higher, but the detection rate of epileptiform discharges is lower; Unilateral increased of CBF might predict the side of epileptogenic focus.