Clinical and Laboratory Predictors of Long-Term Outcomes after Catheter Ablation for a Ventricular Electrical Storm

Table 5

Predictors of the long-term ineffective radiofrequency ablation (RFA) for ventricular electrical storm evaluated by the Cox proportional hazards regression model.

Variables	Univariate analysis			Multivariate analysis
	value	HR	95% CI	value	HR	95% CI
Age, years	0.101	1.07	0.99–1.17	0.66	1.03	0.9–1.17
ICM	0.125	0.36	0.1–1.33	0.009	0.05	0.01–0.48
LVEF, %	0.08	0.92	0.83–1.01	0.433	0.95	0.83–1.08
GFR < 60 mL/min/1.73 m^2	0.075	3.35	0.89-12.63	0.015	16.94	1.74–165.04
NLR	0.088	1.19	0.98–1.45	0.017	1.35	1.05–1.72
BNP, pg/mL	0.252	1.0	1.0–1.01
hsTnI, ng/mL	0.649	0.65	0.1–4.18
Short-term complete RFA success	0.03	0.2	0.05–0.85	0.011	0.03	0.01–0.44

95% CI: 95% confidence interval, BNP: brain natriuretic peptide, GFR: glomerular filtration rate, HR: hazards ratio, hsTnI: high‐sensitivity troponin I, ICM: ischemic cardiomyopathy, LVEF: left ventricular ejection fraction, NLR: neutrophil to lymphocyte ratio. Bold values are statistically significant values.