to determine whether failure of procainamide to prevent initiation of ventricular tachyarrhythmias during electrophysiologic testing predicted failure of other antiarrhythmic regimens , 81 consecutive patients with coronary artery disease whose ventricular tachyarrhythmias remained inducible during procainamide administration were studied .
C0003195
antiarrhythmic
C0033216
procainamide