临床脑死亡患者的脑电定性研究

目的:探讨脑电图(EEG)对脑死亡的诊断价值。方法:研究对象共35例,按照美同神经病学会(AAN)指南分成两组,脑死亡组和非脑死亡组。脑死亡组共有病人22例。其中男性14例,女性8例,年龄16～85岁;非脑死亡组13例,其中男性7例,女性6例,年龄17～84岁。使用床旁EEG机描记病人的脑电活动。2名专业医师进行脑电信号分析。结果:脑死亡组22例病人中,17例为脑电静息,占77%,临床均预后不佳;5例有脑电活动,占23%,其中4例在随访中有不同程度的恢复,1例死亡。非脑死亡组中无一例出现脑电静息,该组预后相对较好。结论:EEG是判定脑死亡一种重要的辅助检查方法。

Qualitative study of EEG in clinical brain death patients

Objective:To assess the value of EEG test in determining brain death.Methods:Ac- cording to the AAN guideline,35 patients were divided into two groups:the suspected brain death group,including 14 males and 8 females,aged from 16 to 85,and the none brain death group which con- sisted of 7 males and 6 females,aged from 17 to 84.Each patient's EEG activities were recorded by port- able EEG equipment.Two EEG specialists were responsible for EEG analysis.Results:Seventeen of the 22 patients,accounting for 77% of the brain death group manifested EEG silence in the examination and died during the following week.Four of other 5 patients whose EEGs were not silent experienced different extent of recovery in the following days.While none of the patients in the none-brain death group showed EEG silence and their prognosis were relatively optimistic.Conclusion:The EEG test,especially to pa- tients whose medical conditions were rather confusing,is valuable and feasible for the diagnosis of brain death.