Spatial correction improves accuracy of catheter positioning during ablation of premature ventricular contractions: differences between ventricular outflow tracts and other localizations

Table 2 Predictive variables and their influence on spatial displacement

Variable	Regression coefficient (mm)	95% CI	p-value
Age (per 10 years increase)	− 0.06	(− 0.63, 0.53)	0.855
BMI (per point increase)	0.05	(− 0.11, 0.20)	0.559
Sex	0.10	(− 1.40, 1.60)	0.892
Impairment of left-ventricular ejection fraction
Mild	− 0.43	(− 2.10, 1.22)	0.598
Moderate	− 0.86	(− 2.78, 1.06)	0.365
Severe	− 0.74	(− 2.87, 1.39)	0.479
Antiarrhythmic medication	0.56	(− 1.39, 2.50)	0.563
Coupling interval (per 100 ms increase)	0.48	(− 0.36, 1.32)	0.252
Area of PVC-origin (outflow-tract vs. non-outflow-tract)	− 1.33	(− 2,63, − 0.03)	0.045*
Mapped chamber	0.56	(− 0.93, 2.05)	0.445

Predictive variables and their respective influence on median spatial displacement. For continuous variables, the linear regression coefficient and its 95% confidence interval is displayed. We observed a significant influence for the area of PVC-origin
*p ≤ 0.05

ISSN: 1471-2261