6Michael GS, Richard VA, Robert SB, et al. Barbiturates impair cerebral metabolism during hypothermic circulatory arrest. Ann Thorac Surg , 1992, 54:1131-1136.
7Pedro A, Gedfrey C, James C, et al. Propofol reduces neuronal transmission damage and attenuates the changes in calcium potassium and sodium during hyperthermic anoxia in the rat canpals slice.Anesthesiology , 1995, 83:1254-1265.
8Pittman JE, Sheng H, Pearlstein R, et al. Comparison of the effect of propofol and pentobarbital on neurologic outcome and cerebral infarct size after temporary focal ischemia in the rat. Anestheiology,1997, 87:1139-1344.