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目的：探讨不同类型脑梗死患者动态脑电图（AEEG）变化的特点及对临床诊断的指导价值。方法：147例均应用24小时便携式磁带记录脑电图仪进行监测，并对比分析脑腔隙性梗死组与脑梗死组的AEEG异常程度。结果：AEEG总异常率为88.4％，腔隙性梗死组轻度异常60％，中、重度异常20％；脑梗死组轻度异常23％，中、重度异常77％，两组间存在显著差异（P＜0．01）。腔隙性脑梗死组痫样波检出率3％，脑梗死组痫样波检出率25％，两组间也有显著性差异（P＜0．01）。结论：脑腔隙性梗死以正常和轻度异常AEEG改变多见、痫样波出现率低；脑梗死以中、重度异常AEEG改变明显，痫样波出现率高。AEEG监测对脑梗死的诊断及病情变化均有重要价值。
Objective: To investigate the characteristics of dynamic electroencephalogram (EEG) changes in patients with different types of cerebral infarction and its guiding value in clinical diagnosis. Methods: All 147 cases were monitored by 24 hours portable magnetic recording EEG. The AEEG abnormalities in lacunar infarction group and cerebral infarction group were compared. Results: The total abnormal rate of AEEG was 88.4%, slight abnormality of lacunar infarction was 60%, moderate and severe abnormality was 20%, slight abnormality of cerebral infarction was 23%, moderate and severe abnormality was 77%, there was significant difference between the two groups (P <0.01). In lacunar infarction group, the detection rate of epileptic sample was 3%, and the detection rate of epileptiform sample in cerebral infarction group was 25%. There was also significant difference between the two groups (P <0.01). Conclusion: The changes of AEEG in normal and mild abnormalities are common in cerebral lacunar infarction. The occurrence of epileptiform samples is low. The changes of AEEG in moderate and severe cerebral infarction are obvious and the appearance of epileptiform sample is high. AEEG monitoring of cerebral infarction diagnosis and changes in the condition have important value.