摘要新生儿缺氧缺血性脑病（HIE）是足月新生儿最常见的神经系统疾病，也是神经发育障碍、癫痫、脑瘫甚至死亡的主要病因。脑电图在HIE中的应用历史悠久，脑电背景活动的动态变化过程已成为HIE脑电监测的关键。虽然目前缺乏国际统一的分度标准，但通过脑电背景严重程度及演变过程的分析，脑电图可作为早期判断脑损伤严重程度、指导临床决策制定和推测预后的可靠且稳定的指标。

abstractsAs a major cause of neonatal neurodevelopmental disorders,epilepsy,cerebral palsy，and even death，hypoxic-ischemic encephalopathy (HIE) is the most common neurological disorder in full-term newborns.The application of electroencephalography (EEG) monitoring in HIE has a long history,and the dynamic process of EEG background activity has become a key aspect of EEG monitoring in HIE.Although there is currently no internationally uniform grading standard,EEG can be a reliable and stable indicator for early assessment of the severity of brain injury,guiding clinical decision-making,and predicting prognosis by analyzing the severity and evolution of EEG background activity.