82例蛛网膜下腔出血的脑电图与临床

分析８２例蛛网膜下腔出血（ＳＡＨ）患者的脑电图（ＥＥＧ）所见及与临床的关系。ＳＡＨ的ＥＥＧ异常率８３％，异常ＥＥＧ主要有三种形式：以普遍性改变为主（６６％）；广泛性异常伴局灶慢波；局灶性改变。ＥＥＧ中、重度异常以病后２４ｈ～１０天居多（８９％）。ＥＥＧ异常与高血压及腰穿压力增高之间无明显相关性（Ｐ＞０．０５），而与意识障碍及预后明显相关（Ｐ＜０．０５），提示ＥＥＧ可作为判断预后的指标之一。另外ＥＥＧ限局性异常与ＣＴ病灶和脑血管造影也有一定关系。

EEG and its relation to the clinics in patients with subarachnoid hemorrhage

EEG and its relation to the clinics were studied in 82 patients with subarachnoid hemorrhage(ASH).The EEG abnormalily rate was 83%.The abnormal EEGs were mainly of three types:prevailing diffuse changes (66.2%),diffuse abnormality with focal slow wave,and focal changes.The moderate and severe EEG changes (89%) were more often seen one to ten days after SAH.No significant relation of abnormal EEG to hypertension and elevated cerebrospinal fluid pressure was noted ( P >0.05),but was obviously correlated with consciousness impairment and prognosis,suggesting that EEG be used as an index for evaluating the prognosis.In addition,there might be certain relation of localized EEG changes to CT lesion and cerebral angiography.