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Erschienen in: Heart and Vessels 7/2020

03.02.2020 | Original Article

The impact of the dominant frequency of body surface electrocardiography in patients with persistent atrial fibrillation

verfasst von: Yosuke Murase, Yasuya Inden, Rei Shibata, Satoshi Yanagisawa, Aya Fujii, Monami Ando, Noriaki Otake, Masaki Takenaka, Junya Funabiki, Yusuke Sakamoto, Toyoaki Murohara

Erschienen in: Heart and Vessels | Ausgabe 7/2020

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Abstract

The dominant frequency (DF) of atrial fibrillation (AF) reflects atrial electrical activity. However, the relationship between DF measured using surface electrocardiography (ECG) and AF ablation success remains unclear. This study aimed to clarify whether the DF of surface ECG in patients with persistent AF could predict arrhythmia recurrence after catheter ablation. We investigated 125 patients with persistent AF who underwent catheter ablation between January 2009 and December 2016. Thirty-four patients (27%) had arrhythmia recurrence after catheter ablation. These patients showed a significantly high DF value in leads aVL (7.2 ± 0.7 Hz vs 6.6 ± 0.9 Hz, p < 0.001) and V1 (7.4 ± 0.8 Hz vs 6.7 ± 0.7 Hz, p < 0.001). We set the cutoff value of DF as 6.9 Hz in lead aVL (sensitivity, 80%; specificity, 63%) and as 7.1 Hz in lead V1 (sensitivity, 72%; specificity, 67%). Patients with DF < 6.9 Hz in lead aVL showed a significantly higher recurrence-free rate than those with DF ≥ 6.9 Hz (88% vs 45%; p < 0.001). Patients with DF of < 7.1 Hz in lead V1 showed a significantly higher recurrence-free rate than those with DF of  ≥ 7.1 (87% vs 47%; p < 0.001). Patients with a high DF in leads aVL and V1 showed a lower success rate of persistent AF ablation. The DF measured from surface ECG can be a useful marker to predict ablation success.
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Metadaten
Titel
The impact of the dominant frequency of body surface electrocardiography in patients with persistent atrial fibrillation
verfasst von
Yosuke Murase
Yasuya Inden
Rei Shibata
Satoshi Yanagisawa
Aya Fujii
Monami Ando
Noriaki Otake
Masaki Takenaka
Junya Funabiki
Yusuke Sakamoto
Toyoaki Murohara
Publikationsdatum
03.02.2020
Verlag
Springer Japan
Erschienen in
Heart and Vessels / Ausgabe 7/2020
Print ISSN: 0910-8327
Elektronische ISSN: 1615-2573
DOI
https://doi.org/10.1007/s00380-020-01563-7

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