Baseline characteristics of the study patients
The baseline characteristics of the study participants are listed in Table 1. The prevalence of CRT-D implantation was significantly higher in the RR-NSVT (-) group (55.9% vs. 32.4%; p=0.009). More frequent use of amiodarone (57.4% vs. 36.8%; p=0.025) and less frequent use of angiotensin-converting enzyme inhibitor/angiotensin II receptor blocker (75.0% vs. 89.7%; p=0.041) was noted in the RR-NSVT (-) group.