Objective To study the difference of HRV between cardioneurosis and viral myocarditis.

目的探讨病毒性肌炎与脏神经症率变异性(HRV)变化的临床。

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.

脏手术、体外循环、低温、主动脉阻断及药物因素可导致率变异性下降，而术后脏自主神经系统的恢复是一个缓慢的过程。