Darby J, Yonas H, Brenner R P
Crit Care Med. 1987 May;15(5):519-21. doi: 10.1097/00003246-198705000-00014.
A patient with brainstem infarction met the clinical criteria for brain death but had persistent EEG activity, complicating our decision to withdraw life support. We evaluated cerebral blood flow with xenon-enhanced computed tomography (Xe/CT), which documented the absence of posterior circulation flow and persistent, low, anterior circulation flow. This information led us to withdraw life support, despite the presence of EEG activity. The Xe/CT method noninvasively measures local cerebral blood flow and may enhance diagnostic certainty in complicated brain-death evaluations.
一名脑干梗死患者符合脑死亡的临床标准，但脑电图仍有持续活动，这使我们在决定撤掉生命支持措施时面临复杂情况。我们用氙增强计算机断层扫描（Xe/CT）评估脑血流量，结果显示后循环血流缺失，前循环血流持续且缓慢。尽管存在脑电图活动，这些信息仍促使我们撤掉生命支持措施。Xe/CT方法可无创测量局部脑血流量，在复杂的脑死亡评估中可能会提高诊断的确定性。
