flecainide restored sinus rhythm in only 2 patients with atrial flutter ( 20 % ) , in 9 patients with atrial fibrillation ( 90 % ) , in 12 patients with ventricular tachycardia ( 80 % ) , and in one of the 2 patients with fasicular tachycardia .
C0016229
flecainide
C0042514
ventricular