既往对近期颈动脉分叉部阻塞病人进行急性血栓内膜切除术的经验是术后病人神经症状会恶化、甚至死亡。这是由于在血脑屏障尚未稳定时,对脑缺血性梗死进行手术以重新构通血流会导致脑水肿或梗死出血。因而许多学者将术前的动脉造影推迟到神经症状稳定时进行,放弃在急性期手术。对缺血性卒中的实验研究显示各种脑功能(即神经 Previous experience with acute thrombosis and endarterectomy in patients with recent occlusion of the carotid bifurcation is the worsening of neurological symptoms and even death of the patient after surgery. This is due to the fact that surgery on cerebral ischemic infarcts to reconstruct the blood flow can lead to cerebral edema or infarct bleeding when the blood-brain barrier has not stabilized. Therefore, many scholars put the preoperative arterial angiography delayed until the neurological symptoms were stable, to give up in the acute phase of surgery. Experimental studies of ischemic stroke have shown that various brain functions (ie, nerves