Key result
General anesthesia for PVI is linked to ~8% higher contact force and reduced catheter movement versus deep sedation.
Why the study?
Although PVI under general anesthesia has shown lower AF recurrence than under deep sedation, the impact of different anesthesia methods on catheter stability remains unclear.
Does general anesthesia improve contact force and catheter stability compared to deep sedation in patients undergoing pulmonary vein isolation for atrial fibrillation?
Observational (n=32)
No
Does general anesthesia improve contact force and catheter stability compared to deep sedation in patients undergoing pulmonary vein isolation for atrial fibrillation?
Absolute Event Rate: 12.94% vs 11.93%
p-value: p=<0.01
General anesthesia during pulmonary vein isolation for atrial fibrillation significantly improves catheter stability and contact force compared to deep sedation.
GA may improve catheter stability metrics in PVI; hypothesis-generating and does not support practice change without randomized outcome data.
Background: The application of radiofrequency ablation for pulmonary vein isolation (PVI) under general anesthesia (GA) has shown a lower recurrence rate of atrial fibrillation (AF) compared with deep sedation (DS). However, the effect of the different anesthesia methodology on catheter stability remains unclear. Methods and A total of 1,863 points (GA: 964 points, DS: 899 points) were analyzed for the CF, and 1,969 points (GA: 1,000 points, DS: 969 points) were analyzed for the catheter tip movement distance. The GA group demonstrated a significantly higher mean CF (GA: 12.94±5.27 g vs. DS: 11.93±5.11 g; P<0.01), as well as a higher minimum CF (GA: 4.61±3.85 g vs. DS: 3.79±3.98 g, P<0.01), compared with the DS group. Additionally, catheter tip movement distance was significantly shorter in the GA group than in the DS group (GA: 1.65±0.76 mm vs. DS: 2.29±1.10 mm, P<0.01). Conclusions: Catheter ablation under GA ensures better maintenance of adequate CF and catheter stability than DS.
No takes yet. Share an insight, caveat, or question.
Shibuya et al. (2025) conducted an observational in Atrial fibrillation (n=32). General anesthesia vs. Deep sedation was evaluated on Mean contact force (g) (p=<0.01). General anesthesia during pulmonary vein isolation significantly increased mean contact force (12.94 g vs 11.93 g) and reduced catheter tip movement distance compared to deep sedation.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: