Result and Conclusion: The antiarrhythmic drugs only can be used to those gravidas who have serious haemodynamics dysfunction or fatal arrhythmia.

• 结果和结论：抗心律失常药物一般只用于伴有重要血流动力学改变或致命性心律失常的孕妇，且必须仔细评价风险／效益比，并使用最低有效剂量；