目的探讨脑过度灌注的机制和防治措施。
Objective To investigate the mechanism and prevention and treatment of cerebral luxury perfusion syndrome in rats.
尽管CAS是一种微创治疗方法，但仍然有许多潜在的并发症，如血流动力学异常、过度灌注综合征、脑梗死和再狭窄等。
Although CAS is a microinvasive technique, it has some potential complications, such as hemodynamic abnormalities, hyperperfusion syndrome, cerebral infarction, and restenosis.
结论RI是反映脑血管调节功能的指标，脑动脉RI升高是脑缺血的的表现，RI降低是脑过度灌注的标志，当RI等于1或<0.5时可提示预后较差。
The prognosis is fairly bad when RI equals1or less than0.5. Conclusions:RI is a target reflecting the cerebral vein adjust. RI is the marker of cerebral ischemia.
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