目的：探讨长程脑电图（EEG）对急危重症脑血管病患者脑功能及预后的评价。方法：发病72 h 内、格 拉斯哥昏迷量表评分（GCS）＜8 分的急危重症脑血管病患者62 例纳入研究，对患者进行长程EEG监测，并 进行EEG分级和GCS评分。分析EEG分级与GCS评分及预后的关系，计算并比较长程EEG分级和GCS评 分预测患者预后的准确率。结果：本组患者长程EEG分级与GCS评分呈负相关（r=－0.739，P＜0.001）；长 程EEG分级与患者预后呈正相关，（r=0.387，P=0.002）。长程EEG预测患者预后准确率为67.7%，GCS评分 预测患者预后的准确率为62.9%，EEG分级预测患者预后的准确性高于GSC评分（P＜0.001）。结论：长程 EEG分级与急危重症脑血管病患者预后显著相关，EEG分级预测患者预后的准确性高于GSC评分。

To investigate the brain function and prognosis of patients with acute and severe cerebrovascular disease by long-term electroencephalogram (EEG). Methods: Sixty-two patients with critical acute cerebrovascular disease and Glasgow coma scores (GCS) of <8 points were enrolled within 72 hours of onset. Patients were monitored by long-term EEG, and EEG grading and GCS scoring were performed. Relationships between EEG grades and GCS scores and prognosis of patients were analyzed, and long-term EEG grades and GCS scores were calculated and compared to predict patient prognosis. Results: For patients in this study, long-term EEG grade was negatively correlated with GCS score (r=－ 0.739, P<0.001); long-term EEG grade was positively correlated with patient prognosis (r=0.387, P=0.002). The accuracy of prognosis was 67.7% with long-term EEG and 62.9% with GCS score. The predictive accuracy of EEG grade on patient prognosis was greater than that of GCS score (P<0.001). Conclusion: Long-term EEG grade is significantly associated with the prognosis of critically ill patients with severe cerebrovascular disease. The accuracy of EEG grades is higher than that of GSC scores in the prognostic evaluation of critical acute cerebrovascular disease.