【正文】
c or unclassified death or cardiac arrest Total death or cardiac arrest Average days of exposure 9 () 6 () 7 () 22 () 300 33 () 14 () 9 () 56 () 293 ( – ) – – ( – ) Placebo (n=725) No. (%) Encainide/flecainide (n=730) No. (%) Relative risk (95% CI) CAST: Cardiac Arrhythmia Suppression Trial SUMMARY In patients with asymptomatic or mildly symptomatic ventricular arrhythmias after MI, encainide or flecainide started at mean of 15 days after MI caused: ? Excessive mortality risk ? Excessive risk of death from arrhythmia