Conclusion The hypothermia,extracorporeal circulation,clamp of aorta and drugs,etc.can lead to decrease of HRV in cardiac surgery.The resume of autonomic cardioneural system was a slow process.
结论心脏手
、体外循环、低温、主动脉阻断及药物因素可导致心率变异性下降，
心脏自主
经系统的
一个缓慢的过程。
经的Conclusion The hypothermia,extracorporeal circulation,clamp of aorta and drugs,etc.can lead to decrease of HRV in cardiac surgery.The resume of autonomic cardioneural system was a slow process.
结论心脏手、体外循环、低温、主动脉阻断及药物因素可导致心率变异性下降，心脏自主经系统的一个缓慢的过程。
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