血管扩张剂能松弛血管平滑肌，因此降低全身血管阻力。
Vasodilatory agents relax vascular smooth muscle, thereby reducing SVR.
结论：头部亚低温能明显降低全身温度，减轻脑水肿，保护缺血的脑组织。
Conclusion: Cranial mild-moderate hypothermia can significantly reduce the body temperature and water content of brain tissues so as to protect the ischemic brain tissues.
氟尿嘧啶植入剂可提高局部药物浓度，延长有效药物浓度时间，降低全身毒副反用。
Fluorouracil for implantation can elevate the local drug concentration, extend the time of effective drug concentration, reduce the general toxic and side-effect.
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