脑死亡又称为不可逆性昏迷,是指全脑功能呈不可逆性丧失,虽然暂时患者心跳还未停止,但脑功能永不恢复,在一定时间内心跳也必然停止。因此如何在脑死亡发生前进行积极抢救,具有极为重要的临床意义。脑电图电静息在诊断脑死亡的价值,多数学者都持肯定意见。世界各国如美、英、日、法等对诊断脑死亡虽然都有各自的标准, Brain death, also known as irreversible coma, refers to the loss of irreversible whole brain function, although the temporary patient heartbeat has not stopped, but the brain function never resume, within a certain period of time the heartbeat is bound to stop. Therefore, how to carry out active rescue before brain death has extremely important clinical significance. The value of electroencephalography in the diagnosis of brain death, most scholars hold a positive opinion. Although all countries in the world, such as the United States, Britain, Japan and France, have their own criteria for the diagnosis of brain death,