Figure 6: HF Hearts Have Increased Ventricular Arrhythmia Inducibility, Which Is Prevented by RDN

(A) Representative induced electrocardiogram tracings of VT and VF in the HF group is shown. Red horizontal lines annotate the QT intervals. L indicates long QT interval, and S, short QT interval. Alternation of long and short QT intervals is noted before the onset of VT and VF. (B) Summary data of the mean duration of induced VT or VF and the proportions of induced VT and VF are shown. The mean duration of VT/VF and the proportion of VF are higher in the HF group, compared with those of CTL, and RDN decreases induced mean VT/VF duration and VF proportion in HF hearts (HF+RDN). Data represent mean ± SD. #p < 0.05 HF+RDN versus HF group. Abbreviations as in Figures 1 and 2.