Key result
The use of a mesh-type flexible tip catheter was independently associated with a lower clinical recurrence of atrial fibrillation compared to other irrigated-tip catheters (HR 0.670).
Why the study?
Following the STAR-AF2 trial emphasizing circumferential pulmonary vein isolation, the long-term clinical trends and outcomes regarding empirical extra-pulmonary vein ablation in AF remained to be evaluated.
Does the use of mesh-type flexible tip catheters and changes in extra-pulmonary vein ablation strategies improve 1-year recurrence rates in patients undergoing atrial fibrillation ablation?
Population
2,297 consecutive patients undergoing AF ablation
Comparison
Trends across 2009 to 2017 and catheter types
Design
Observational cohort study
Follow-up
1 year
Authors
Loading...
May support mesh-type catheter selection in AF ablation; hypothesis-generating and requires randomized confirmation.
Cohort (n=2,297)
No
Does the use of mesh-type flexible tip catheters and changes in extra-pulmonary vein ablation strategies improve 1-year recurrence rates in patients undergoing atrial fibrillation ablation?
Hazard Ratio: 0.67 (95% CI 0.559–0.803)
Absolute Event Rate: 11.6% vs 18.4%
p-value: p=<0.001
Over a 9-year period, empirical extra-pulmonary vein ablation decreased without worsening outcomes, while the adoption of mesh-type flexible tip catheters improved 1-year freedom from atrial fibrillation.
Park et al. (2019) conducted a cohort in Atrial fibrillation (n=2,297). Mesh-type flexible tip (MFT) catheter vs. Other irrigated-tip catheters was evaluated on Clinical recurrence of atrial fibrillation/atrial tachyarrhythmia (HR 0.670, 95% CI 0.559-0.803, p=<0.001). The use of a mesh-type flexible tip catheter was independently associated with a lower clinical recurrence of atrial fibrillation compared to other irrigated-tip catheters (HR 0.670).
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: