虽然室性早搏是心脏性死亡和猝死的一个危险因素,然而抑制慢性室性早搏能否减少致命性心律失常或猝死,迄今尚无定论.急性心肌缺血时,潜在致命性心律失常的发生可并无先兆;反之,出现先兆性心律失常并不一定均发生致命性心律失常,作者通过对入院前心脏停搏幸存患者的长期观察发现,抗心律失常药物维持在稳定的血浆治疗浓度,即使不能抑制慢性室性早搏,但却能防止心脏停搏的再 Although premature ventricular contractions are a risk factor for cardiac and sudden death, it is not known to date whether inhibition of premature ventricular arrhythmia can reduce fatal arrhythmias or sudden death.Acute myocardial ischemia may lead to the development of potentially fatal arrhythmias On the contrary, it is not always possible for fatal arrhythmias to occur in all cases of atrial arrhythmias. Long-term observation of patients surviving pre-admission cardiac arrest found that antiarrhythmic drugs are maintained at a steady plasma concentration, even if not Inhibit chronic premature ventricular contractions, but can prevent heart arrest and then