Reproducibility and predictive value of a simple novel method to measure atrial fibrillation cycle length in persistent atrial fibrillation – FARS‐AF study
Abstract Introduction Different methods are used for atrial fibrillation (AF) cycle length (CL) measurement with variable results. Previous studies of pulmonary vein (PV) CL measurement showed contradictory results on predicting PV isolation (PVI) efficacy. A novel simple method of measuring the average of 10 consecutive Fastest Atrial Repetitive Similar morphology signal (FARS10)‐CL to characterize local atrial activity rate was evaluated prospectively. Methods The intra‐observer reproducibility of FARS10‐CL and traditional AF‐CL measurement of continuously fragmented coronary sinus (CS) signals were tested. We prospectively enrolled 100 consecutive patients (62 ± 10 years, 72% male) undergoing wide antral PVI only ablation for persistent AF, measured PV‐FARS10‐CLs, and evaluated long‐term outcome. Results The Kendall area correlation between repeated traditional AF‐CL measurements was −0.006 and between repeated FARS10‐CL measurements in the right and left atrial appendages, CS and PVs were 0.944, 0.859, 0.882, 0.675–0.955, respectively. Patients with recurrent atrial tachyarrhythmia had significantly longer fastest PV‐FARS10‐CL (172 ± 41 vs. 156 ± 41 ms, p = .047). Patients with high burden of spontaneous low‐voltage zone (LVZ) had significantly longer fastest PV‐FARS10‐CL. Freedom from recurrent tachyarrhythmia at 24 months was 85% versus 59% in patients with fastest PV‐FARS10‐CL ≤ 140 versus >140 ms, p = .0018, respectively. In multivariable analysis fastest PV‐FARS10‐CL ≤ 140 ms was the only significant predictor of freedom from recurrent tachyarrhythmia. Conclusions FARS10‐CL measurements have a high reproducibility in contrast to traditional AF‐CL measurement of continuously fragmented CS signals. Patients with high burden of LVZ have longer fastest PV‐FARS10‐CLs. Fastest PV‐FARS10‐CL ≤ 140 ms is associated with a high success of wide antral PVI‐only ablation approach in persistent AF..
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2022 |
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| Erschienen: |
2022 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:33 |
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| Enthalten in: |
Journal of Cardiovascular Electrophysiology - 33(2022), 4, Seite 641-650 |
| Beteiligte Personen: |
Spera, Francesco [VerfasserIn] |
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| BKL: |
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| Anmerkungen: |
© 2022 Wiley Periodicals LLC |
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| Umfang: |
10 |
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| doi: |
10.1111/jce.15401 |
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| Förderinstitution / Projekttitel: |
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WLY007963912 |
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| 520 | |a Abstract Introduction Different methods are used for atrial fibrillation (AF) cycle length (CL) measurement with variable results. Previous studies of pulmonary vein (PV) CL measurement showed contradictory results on predicting PV isolation (PVI) efficacy. A novel simple method of measuring the average of 10 consecutive Fastest Atrial Repetitive Similar morphology signal (FARS10)‐CL to characterize local atrial activity rate was evaluated prospectively. Methods The intra‐observer reproducibility of FARS10‐CL and traditional AF‐CL measurement of continuously fragmented coronary sinus (CS) signals were tested. We prospectively enrolled 100 consecutive patients (62 ± 10 years, 72% male) undergoing wide antral PVI only ablation for persistent AF, measured PV‐FARS10‐CLs, and evaluated long‐term outcome. Results The Kendall area correlation between repeated traditional AF‐CL measurements was −0.006 and between repeated FARS10‐CL measurements in the right and left atrial appendages, CS and PVs were 0.944, 0.859, 0.882, 0.675–0.955, respectively. Patients with recurrent atrial tachyarrhythmia had significantly longer fastest PV‐FARS10‐CL (172 ± 41 vs. 156 ± 41 ms, p = .047). Patients with high burden of spontaneous low‐voltage zone (LVZ) had significantly longer fastest PV‐FARS10‐CL. Freedom from recurrent tachyarrhythmia at 24 months was 85% versus 59% in patients with fastest PV‐FARS10‐CL ≤ 140 versus >140 ms, p = .0018, respectively. In multivariable analysis fastest PV‐FARS10‐CL ≤ 140 ms was the only significant predictor of freedom from recurrent tachyarrhythmia. Conclusions FARS10‐CL measurements have a high reproducibility in contrast to traditional AF‐CL measurement of continuously fragmented CS signals. Patients with high burden of LVZ have longer fastest PV‐FARS10‐CLs. Fastest PV‐FARS10‐CL ≤ 140 ms is associated with a high success of wide antral PVI‐only ablation approach in persistent AF. | ||
| 700 | 1 | |a Rodriguez‐Mañero, Moises |4 aut | |
| 700 | 1 | |a Baluja, Aurora |4 aut | |
| 700 | 1 | |a Saenen, Johan |4 aut | |
| 700 | 1 | |a Huybrechts, Wim |4 aut | |
| 700 | 1 | |a Miljoen, Hielko |4 aut | |
| 700 | 1 | |a Tijskens, Maxime |4 aut | |
| 700 | 1 | |a Vandaele, Lien |4 aut | |
| 700 | 1 | |a Wittock, Anouk |4 aut | |
| 700 | 1 | |a Claeys, Marc J. |4 aut | |
| 700 | 1 | |a Heidbuchel, Hein |4 aut | |
| 700 | 1 | |a Sarkozy, Andrea |4 aut | |
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