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缺血性中风所引起的脑水肿是能量代谢障碍所致，以细胞内水肿为主［１］。研究发现：脑出血早期血肿周围就有血流量下降，对其原因有多种假说，如颅内压增高［２］、血肿机械压迫［３］、介质释放所致的血管痉挛［４］等。但上述假说有些并不符合临床的具体情况。最近有报道［?
Cerebral edema caused by ischemic stroke is caused by energy metabolism disorders, mainly intracellular edema [1]. The study found that there was a decrease in blood flow around the early stage of hematoma in patients with ICH. There are several hypotheses for this reason, such as increased intracranial pressure [2], mechanical compression of hematoma [3], vasospasm caused by release of media [4]. However, some of the above hypotheses do not meet the specific clinical conditions. Recently reported [?