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03.07.2021 | Original Article

Transition of the heart rate and atrial premature complex after cryoballoon vs. radiofrequency ablation for paroxysmal atrial fibrillation

Zeitschrift:
Heart and Vessels
Autoren:
Hidenori Sato, Michifumi Tokuda, Hirotsuna Oseto, Masaaki Yokoyama, Hirotsugu Ikewaki, Ryota Isogai, Kenichi Tokutake, Kenichi Yokoyama, Mika Kato, Ryohsuke Narui, Shinichi Tanigawa, Seigo Yamashita, Seiichiro Matsuo, Michihiro Yoshimura, Teiichi Yamane
Wichtige Hinweise

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Abstract

The temporal changes in ambulatory monitoring findings after cryoballoon (CB) ablation of atrial fibrillation (AF) have not been well elucidated. This study aims to compare the details of ambulatory monitoring after CB and radiofrequency catheter (RFC) ablation for AF. Of 724 consecutive AF patients who underwent initial ablation using a CB or RFC, 508 (254 pairs) were selected using propensity score matching. Ambulatory monitoring was performed at 1, 3, 6, 12, 24 and 36 months after the procedure. After 1, 3 and 6 months, the number of total heart beats (THBs) was larger in the CB group than in the RFC group. It gradually decreased and became significantly similar by 12 months after ablation. THBs significantly increased 1, 3, 6 and 12 months after ablation in both the RFC and CB groups and became statistically similar by 24 months after ablation. The atrial premature contraction burden was higher in the RFC group than in the CB group at 3 months after ablation. THB and APC burden after AF ablation were significantly different between the RF and CB groups. THBs returned to statistically similarity by 2 years after ablation in both groups.

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