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目的：观察小儿先天性心脏病体外循环（ＣＰＢ）前、中、后不同阶段液体出入量平衡，为围ＣＰＢ期的液体管理提供参考。方法：各类先天性心脏病患儿共计８０例，分别统计ＣＰＢ前、中、后有关血液动力学指标、尿量、输入晶体液量、输血量和时间等，同时取静脉血样进行血气分析。结果：小于１岁患儿液体总入量：ＣＰＢ前２２．３±８．４ｍｌ／（ｋｇｈ），ＣＰＢ中７８．３±３２．８ｍｌ／ｋｇ，ＣＰＢ后１８．７±１４．５ｍｌ／（ｋｇｈ）。１～３岁（包括３岁）患儿液体总入量：ＣＰＢ前１７．６±８．０ｍｌ／（ｋｇｈ），ＣＰＢ中４８．３±１６．１ｍｌ／ｋｇ，ＣＰＢ后６．９±１８．１ｍｌ／（ｋｇｈ）。３～６岁患儿液体总入量：ＣＰＢ前１４．８±５．０ｍｌ／（ｋｇｈ），ＣＰＢ中３７．２±１４．２ｍｌ／ｋｇ，ＣＰＢ后４．４±９．６ｍｌ／（ｋｇｈ）。结论：不同年龄段及患儿ＣＰＢ心脏手术不同阶段液体总入量不同
OBJECTIVE: To observe the balance of fluid excretion at different stages before, during and after cardiopulmonary bypass (CPB) in children with congenital heart disease (CPB), so as to provide reference for the management of fluid during the CPB period. Methods: A total of 80 children with congenital heart disease were enrolled in this study. The hemodynamics, urine output, fluid volume and time of blood transfusion before, during and after CPB were calculated respectively. Blood samples were collected for venous blood gas analysis. Results: The total amount of fluid in children younger than 1 year old was 22.3 ± 8.4ml / (kgh) before CPB, 78.3 ± 32.8ml / kg in CPB and 18.7 ± 14.5ml / (kgh ). Total fluid intake in children aged 1 to 3 years (including 3 years) was 17.6 ± 8.0 ml / (kgh) before CPB, 48.3 ± 16.1 ml / kg in CPB, and 6.9 ± 18 after CPB. 1ml / (kgh). The total volume of fluid in children aged 3 to 6 years: 14.8 ± 5.0ml / (kgh) before CPB, 37.2 ± 14.2ml / kg in CPB and 4.4 ± 9.6ml / (kgh) after CPB . Conclusion: The total amount of fluid in different stages of CPB and cardiac surgery in children is different