Comprehensive Multicenter Study of the Common Isthmus in Post-Atrial Fibrillation Ablation Multiple-Loop Atrial Tachycardia

Circulation. Arrhythmia and Electrophysiology
Masateru TakigawaPierre Jaïs

Abstract

Characteristics of multiple-loop atrial tachycardia (AT) circuits have never precisely examined. In 193 consecutive post-atrial fibrillation ablation patients with AT, 44 multiple-loop ATs including 42 dual-loop AT and 2 triple-loop AT in 41 (21.2%) were diagnosed with the high-resolution mapping system and analyzed off-line. In dual-loop ATs, 3 types were identified: type M, a combination of 2 anatomic macroreentrant ATs (AMATs) in 19 (43.2%); type MN, with 1 AMAT and 1 non-AMAT in 12 (27.3%); and type N with 2 non-AMATs in 11 (25.0%). The remaining 2 triple-loop ATs (4.5%) were a combination of perimitral-, roof-dependent-, and non-AMAT. At least 1 AMAT was included in 33 (75.0%), and 1 non-AMAT in 25 (56.8%). Of the ATs with at least 1 non-AMAT circuit, a pulmonary vein formed part of the circuit in 16/25 (64.0%). The length of the common isthmus was 3.6±1.4 cm in type M, 1.6±0.7 cm in type MN, and 1.1±0.7 cm in type N (P<0.0001). The area of the common isthmus was 12.92±7.68, 2.46±1.53, and 0.90±0.81 cm2, in Type M, MN, and N (P<0.0001). The narrowest width of the common isthmus was 1.8±0.7 cm, 1.1±0.3 cm, and 0.7±0.3 cm in type M, MN, and N (P<0.0001), respectively. The electrograms in the common isthmus showed longer dura...Continue Reading

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Citations

Aug 11, 2019·Europace : European Pacing, Arrhythmias, and Cardiac Electrophysiology : Journal of the Working Groups on Cardiac Pacing, Arrhythmias, and Cardiac Cellular Electrophysiology of the European Society of Cardiology·Marco ScaglioneAlberto Battaglia
Aug 11, 2019·Europace : European Pacing, Arrhythmias, and Cardiac Electrophysiology : Journal of the Working Groups on Cardiac Pacing, Arrhythmias, and Cardiac Cellular Electrophysiology of the European Society of Cardiology·Christian Meyer
Jan 16, 2020·Circulation. Arrhythmia and Electrophysiology·Masateru TakigawaPierre Jaïs
Jul 1, 2020·Europace : European Pacing, Arrhythmias, and Cardiac Electrophysiology : Journal of the Working Groups on Cardiac Pacing, Arrhythmias, and Cardiac Cellular Electrophysiology of the European Society of Cardiology·Masateru TakigawaNicolas Derval
May 15, 2020·Journal of Interventional Cardiac Electrophysiology : an International Journal of Arrhythmias and Pacing·P IoannidisI Kanonidis
Apr 1, 2020·Journal of Cardiovascular Electrophysiology·Jennifer Jeanne B ViceraShih-Ann Chen
Feb 11, 2021·Europace : European Pacing, Arrhythmias, and Cardiac Electrophysiology : Journal of the Working Groups on Cardiac Pacing, Arrhythmias, and Cardiac Cellular Electrophysiology of the European Society of Cardiology·Konstantinos VlachosPierre Jaïs
Mar 12, 2021·Minerva Cardiology and Angiology·Antonio FronteraPaolo Della Bella
Apr 2, 2021·Heart Rhythm : the Official Journal of the Heart Rhythm Society·Masateru TakigawaPierre Jais
Mar 10, 2021·Pacing and Clinical Electrophysiology : PACE·Konstantinos VlachosMélèze Hocini
Apr 10, 2021·Journal of Cardiovascular Electrophysiology·Shin-Huei LiuShih-Ann Chen
May 28, 2019·Heart Rhythm : the Official Journal of the Heart Rhythm Society·Konstantinos VlachosNicolas Derval
Apr 21, 2019·Heart Rhythm : the Official Journal of the Heart Rhythm Society·Masateru TakigawaPierre Jais
Nov 6, 2018·Heart Rhythm : the Official Journal of the Heart Rhythm Society·Masateru TakigawaPierre Jaïs
May 7, 2021·Journal of Cardiovascular Electrophysiology·Shunsuke KurodaAyman A Hussein
Aug 24, 2019·JACC. Clinical Electrophysiology·Aman Chugh
Jan 9, 2022·Pacing and Clinical Electrophysiology : PACE·Kohki NakamuraShigeto Naito

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