充血性心力衰竭(CHF)患者若有非持续的室速,猝死的危险性可能较大,然而尚无定论。何况,抑制这类心律失常未必能够防止猝死。CHF 患者,使用抗心律失常药物效果较差,心脏毒性较大,而且可使心律失常加重,甚至死亡率增高。因此,对于 CHF 而无症状的室性心律失常,不宜常规使用抗心律失常药物。 In patients with congestive heart failure (CHF), if there is a non-sustained VT, the risk of sudden death may be greater, but there is no conclusive result. Moreover, the inhibition of such arrhythmias may not be able to prevent sudden death. CHF patients, the use of anti-arrhythmic drugs less effective, more cardioratoxicity, but also make the arrhythmia worse, and even increased mortality. Therefore, for CHF and asymptomatic ventricular arrhythmias, antiarrhythmic drugs should not be routinely used.