the effect of encainide and its two major metabolites , o-demethylated encainide ( mj 9444 ) and 3-o-methoxy encainide ( mj 14030 ) , on cardiac conduction was studied by recording his bundle potentials in isolated perfused rabbit hearts and purkinje and muscle conduction in vivo in dog hearts after destruction of the atrioventricular node .
C0018787
hearts
C0004247
atrioventricular node