Feasibility of a novel mapping system combined with remote magnetic navigation for catheter ablation of premature ventricular contractions

BACKGROUND: Remote magnetic navigation (RMN) is often used in combination with a 3‐dimensional mapping system to perform catheter ablations. This study aim to investigate the feasibility and effectiveness of a novel 3D‐mapping system, EnSite Precision, combined with RMN for catheter ablation of premature ventricular contractions (PVCs), and compared it to the procedures performed by CARTO3 with RMN. METHODS: Forty‐three consecutive PVC patients were either ablated with the guidance of EnSite Precision (n = 22) or CARTO (n = 21) navigated by RMN. Procedure‐related details, acute and long‐term success were assessed. RESULTS: Patient characteristics between both the groups were similar (age: 47.1 ± 19.8 vs 47.1 ± 12.7, female: 63.6% vs 57.1%). No significant difference was found in the procedure time (99.5 ± 30.4 vs 92.9 ± 24.8 min, P = 0.436), mapping time (18.6 ± 12.8 vs 15.5 ± 10.2 min, P = 0.390), radiofrequency ablation time (333.4 ± 267.0 vs 469.3 ± 343.1 s, P = 0.154), fluoroscopy time (4.0 ± 1.9 vs 3.8 ± 2.0 min, P = 0.635), and X‐ray dose (1.8 ± 1.4 vs 2.0 ± 1.2 Gycm(2), P = 0.649) between the two groups. No significant procedural complication occurred in either group. In addition, there was no significant differences regarding the acute success rate (90.9% vs 90.5%, P = 0.961) and long‐term success rate (86.4% vs 81.0%, P = 0.631) after 16.2 ± 6.2 months of follow‐up between the two groups. CONCLUSIONS: RMN combined with EnSite Precision mapping system is effective and safe for catheter ablation of PVCs.