Hiệu quả triệt đốt ngoại tâm thu thất tiên phát bên phải bằng năng lượng sóng có tần số radio dựa trên lập bản đồ nội mạc cơ tim ba chiều

Abstract

Objective: The purpose of the study is to evaluate the effectiveness of right ventricular extrasystoles ablation by radiofrequency (RF) wave energy based on 3-dimensional cardiac chamber endocardial mapping. Subject and method: 152 patients were performed electrophysiological study and ablation at Hanoi Heart Hospital from 01/2019 to 6/2023. Of these, 85 patients with PVCs originating from the RVOT using traditional 2D mapping for ablation. The remaining 67 patients used 3D mapping method for ablation, of which 60 patients had PVCs originating from the RVOT, 7 patients with PVCs originating from non-RVOT. Result: The early success rate of the 3D method: 93.3% in the RVOT group, 85.7% in the non-RVOT group; The early success rate of the 2D method was 95.3%. The late success rate of the 3D method: 91.7% in RVOT group, 71.4% in the non-RVOT group; The late success rate of the 2D method was 88.2%; The fluoroscopy time was significantly reduced in the 3D method (4.2 ± 3.7 seconds compared to 11 ± 8.4 seconds). Conclusion: 3D mapping method has a higher success rate than 2D method in the group of PVCs originating from RVOT, the success rate is lower than in the group of non-RVOT.