to study the characteristics of the ventriculoatrial conduction system in patients capable of rapid antegrade atrioventricular conduction , electrophysiologic studies were performed in 23 subjects capable of 1:1 atrioventricular conduction at atrial cycle lengths less than or equal to 300 ms ( group i ) , and in 23 subjects with normal 1:1 atrioventricular conduction ( group ii ) .
C1521970
characteristics
C1444754
lengths