心肌保护涉及的问题较多,患者的术前准备,麻醉及术中处理均有一定影响。虽然冷停跳液及全身、局部低温的应用起了良好的心肌保护作用,但随着心脏外科治疗复合畸形或重症患者的增多,如何能使在体外循环阻断主动脉后的心肌缺血期间,有足够多的能量储备和利用,以及进一步降低心肌氧耗和增加供氧,从而减轻心肌损伤,促进体外循环后心功能的恢复,仍是一个值得 Myocardial protection involves more problems, the patient’s preoperative preparation, anesthesia and intraoperative management have a certain impact. Although cold-stop fluid and systemic, local application of low temperature has played a good myocardial protection, but with cardiac surgery compound deformity or severe patients increased, how can make cardiopulmonary bypass after aortic occlusion during ischemia , There is enough energy reserves and utilization, and further reduce myocardial oxygen consumption and increase oxygen supply, thereby reducing myocardial damage and promote cardiac function recovery after cardiopulmonary bypass, is still a worthwhile