Hussein Omar
University of New Mexico Hospitals - Department of Neurology; MSC10 5620, Albuquerque, NM 87131, U.S.A..
J Stroke Cerebrovasc Dis. 2020 Nov;29(11):105262. doi: 10.1016/j.jstrokecerebrovasdis.2020.105262. Epub 2020 Sep 2.
The utility of quantitative EEG in early detection of cerebral ischemia is still underappreciated in clinical practice. We present a case of aneurysmal subarachnoid hemorrhage complicated by vasospasm as detected by the cerebral angiogram. The patient was being monitored on electroencephalogram. It showed early signs of cerebral ischemia represented by decline in the Alpha-Delta-Ratio (ADR) and the Relative-Alpha-Variability (RAV). Surprisingly, the RAV changes preceded the ADR changes. This is a significant finding that can also apply to early reocclusion or reperfusion injuries after mechanical thrombectomy.
定量脑电图在脑缺血早期检测中的作用在临床实践中仍未得到充分重视。我们报告一例经脑血管造影检测出的动脉瘤性蛛网膜下腔出血并发血管痉挛的病例。该患者正在接受脑电图监测。脑电图显示出脑缺血的早期迹象，表现为α-δ比值（ADR）和相对α变异性（RAV）下降。令人惊讶的是，RAV的变化先于ADR的变化。这是一个重要发现，也可应用于机械取栓术后的早期再闭塞或再灌注损伤。
