脑完全缺血就不会明显低脑灌注吗？

In severe cerebral hypoxia, a major part of the dysfunction and damage is because of intracellular acidosis rather than simply depletion of high-energy compounds (see later). Gross hypoperfusion is more damaging than total ischaemia, because the latter limits glucose supply and therefore the formation of lactic acid. Similarly, patients who have an episode of cerebral ischaemia whilst hyperglycaemic (e.g., a stroke) have been found to have more severe brain injury than those with normal or low blood glucose levels at the time of the hypoxic event

严重脑缺氧时，功能障碍和细胞损伤的主要原因 是细胞内酸中毒，而不单纯是耗竭了高能化合物。所以 相比完全性脑缺血，严重的脑低灌注更具破坏性，因为 完全性脑缺血限制了葡萄糖的供应，从而减少了乳酸形 成。类似地，相较脑缺血发作（如脑卒中）时血糖水 平正常或较低患者，高血糖患者脑损伤更为严重。

理解的对吗？@乐痴于医 @石南419

接上@青鹊词 问，@小僧悟道a 脑完全缺血就不会明显低脑灌注吗？