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.
结论手术、体外循环、低温、阻断及药物因素可导率变异性下降,而术自神经系统的恢复是一个缓慢的过程。
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