结论：小儿心脏手术后神经系统并发症以脑血管损害为主。

Conclusion: The main neurological complications after CPB surgery are cerebrovascular damage, anoxic brain damage and epilepsy.

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目的：研究小儿心脏手术CPB前后中性粒细胞弹性蛋白酶(NE)的改变及其意义。

Objective: To investigate change and signification of neutrophil elastase (ne) before and after cardiopulmonary bypass (CPB) in pediatric cardiac surgery.

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目的探讨促红细胞生成素和硫酸亚铁治疗用于小儿心脏手术的术前自体献血（AHT）。

Objective To explore erythropoietin(EPO) and ferrous sulfate therapy used to autohemotherapy(AHT) in the child cardiac operation.

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