Clinical outcomes between RR-NSVT (-) and RR-NSVT (+) patients
Table 3 shows the clinical outcomes in both groups. A higher incidence of VTAs (11.8% vs. 67.6%; p<0.001), electrical storm (1.5% vs. 14.7%, p=0.009), and admission for HF (33.8% vs. 52.9%; p=0.037) were noted in the RR-NSVT (+) group compared to the RR-NSVT (-) group. The incidence of cardiovascular and all-cause mortality did not show a significant difference between groups. A longer follow-up period was noted in the RR-NSVT (+) group.
A Kaplan-Meier curve on the occurrence of VTAs showed a significant difference between the groups (log-rank p<0.001) (Figure 2A), which was consistent in patients with primary (Figure 2B) and secondary prevention (Figure 2C). No significant differences in the event-free survival of HF admission (Figure 3A) and cardiovascular mortality (Figure 3B) were observed between groups.