结论AHH配合异丙酚控制性降压可安全用于脊柱手术，可明显减少甚至避免输注异体血。
Conclusion AHH combined with propofol controlled hypertension is safe on spine operation, leading to less blood loss and allogeneic blood transfused.
目的探讨急性高容量血液稀释(AHH)复合异丙酚控制性降压对脊柱手术的临床效果及安全性。
Objective To evaluate the effects and safeties of acute hypervolemic hemodilution (AHH) combined with propofol controlled hypertension on spine operation.
结论异丙酚控制性降压期间脑组织氧供充分、氧耗减少，而压宁定复合硝普钠降压期间脑组织氧供相对不足、氧耗相对增加。
Conclusion Propofol - induced hypotension can increase cerebral oxygen supply and reduce oxygen consumption, but which is opposite to ebrantil combined with nitroprusside - induced hypotension.
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