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作者提出１５ｋｇ以下小儿心脏直视术体外循环管理中心肺机预充液宜选平衡液以防严重高血糖。转流过程维持较高灌注量以满足小儿高代谢、高氧耗的需要。维持适当灌注压可防止重要脏器长时间供血不足。ＰＤＡ或ＶＳＤ合并ＰＤＡ手术采用中度低温、低流量是安全可行的。ＶＳＤ合并肺动脉高压应用血管扩张药有利于降低肺动脉压及肺血管阻力。
The authors suggest that the following 15kg pediatric heart open heart surgery cardiopulmonary bypass management center lung machine should be pre-filled fluid balance solution to prevent severe hyperglycemia. The commutation process to maintain a high perfusion to meet the needs of children with high metabolism, high oxygen consumption. Maintaining proper perfusion pressure prevents long periods of insufficient blood supply to vital organs. PDA or VSD combined PDA surgery with moderate low temperature, low flow is safe and feasible. VSD combined with pulmonary hypertension Vasodilators help to reduce pulmonary artery pressure and pulmonary vascular resistance.