Predictors of recurrence of atrial tachyarrhythmias after pulmonary vein isolation by functional and structural mapping of nonparoxysmal atrial fibrillation

Autor: Koji Kumagai, Tsukasa Sato, Yuki Kurose, Takenori Sumiyoshi, Kaoru Hasegawa, Yuko Sekiguchi, Minoru Yambe, Tatsuya Komaru
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Journal of Arrhythmia, Vol 38, Iss 1, Pp 86-96 (2022)
Druh dokumentu: article
ISSN: 1883-2148
1880-4276
DOI: 10.1002/joa3.12670
Popis: Abstract Background This study aimed to evaluate the predictors of recurrence of atrial tachyarrhythmias by structural and functional mapping: voltage, dominant frequency (DF), and rotor mapping after a pulmonary vein isolation (PVI) in nonparoxysmal atrial fibrillation (AF) patients. Methods A total of 66 nonparoxysmal AF patients were prospectively investigated. After the PVI, an online real‐time phase mapping system was used to detect the location of rotors with critical nonpassively activated ratios (%NPs) of ≧50% in each left atrial (LA) segment, and high‐DFs of ≧7 Hz were simultaneously mapped. After restoring sinus rhythm, low‐voltage areas (LVAs 3.3% after one procedure over 11.6 ± 0.8 months of follow‐up (77.1% vs. 33.3%, p
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