Key result
AF freedom 12 months post-ablation is linked to ~47% more stable dominant frequencies.
Why the study?
Catheter ablation restores sinus rhythm in patients with AF, but termination ratios remain unsatisfactory, leaving the predictive role of temporal stability of dominant frequencies for AF recurrence unclear.
Does temporal stability of dominant frequencies of electrograms predict atrial fibrillation recurrence in patients undergoing catheter ablation?
Observational (n=29)
No
Does temporal stability of dominant frequencies of electrograms predict atrial fibrillation recurrence in patients undergoing catheter ablation?
Absolute Event Rate: 0.1% vs 0.19%
p-value: p=0.028
This study investigates whether the temporal stability of dominant frequencies in electrograms can serve as a predictor for atrial fibrillation recurrence following catheter ablation.
Hypothesis-generating finding warrants caution before clinical use; leaves open whether dominant frequency stability refines ablation selection or endpoints.
Catheter ablation is one of the main therapies for restoring sinus rhythm in patients with atrial fibrillation (AF), yet AF termination ratios are far from satisfactory. The goal of this work is to study if temporal stability of dominant frequencies (DFs) of electrograms (EGMs) can be used as predictor of AF recurrence.
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Costoya‐Sánchez et al. (2019) conducted an observational in Atrial fibrillation (n=29). Catheter ablation was evaluated on Normalized average difference between dominant frequencies (long-term) (p=0.028). Patients remaining free of atrial fibrillation 12 months post-ablation had significantly more stable long-term dominant frequency values compared to those with recurrence (0.10 vs 0.19 Hz, p=0.028).
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