a decrease in late inducibility of sustained vt/vf was greater for arrhythmias induced during initial pvs by triple extrastimuli and burst pacing than for those induced by double extrastimuli ( 88 % vs 25 % , p less than 0.04 ) , but appeared to be unrelated to the morphologic characteristics or cycle length of the initially induced sustained vt or vf and to other clinical , hemodynamic or angiographic variables .
C0003811
arrhythmias
C0042510
vf