スズキ ツヨシ   SUZUKI Tsuyoshi
  鈴木 豪
   所属   医学部 医学科(東京女子医科大学病院)
   職種   助教
論文種別 原著
言語種別 英語
査読の有無 査読あり
表題 Long-term outcome and preprocedural predictors of atrial tachyarrhythmia recurrence following pulmonary vein antrum isolation-based catheter ablation in patients with non-paroxysmal atrial fibrillation.
掲載誌名 正式名:Journal of Cardiology
略  称:J Cardiol
ISSNコード:09145087/18764738
掲載区分国内
出版社 Elsevier
巻・号・頁 64(1),57-63頁
著者・共著者 EJIMA Koichiro†*, ARAI Kotaro, SUZUKI Tsuyoshi, KATO Ken, YOSHIDA Kentaro, NUKI Toshiaki, SUZUKI Futoshi, UEMATSU Shoko, GOMITA Keiko, HOSHI Hiromi, MANAKA Tetsuyuki, ASHIHARA Kyomi, SHODA Morio, HAGIWARA Nobuhisa
発行年月 2014/07
概要 BACKGROUND:
Although various empiric adjunctive ablation techniques are widely performed with pulmonary vein antrum isolation (PVAI) to enhance the procedural efficacy of catheter ablation in non-paroxysmal atrial fibrillation (NPAF) patients, they are not required in all NPAF patients.

METHODS AND RESULTS:
Eighty consecutive NPAF patients refractory to antiarrhythmic drugs underwent a PVAI-based ablation. Structural heart disease was present in 40% of patients and systolic dysfunction in 21%. After 31 ± 16 months of follow-up, 41% of the patients were free of atrial tachyarrhythmia recurrences after a single procedure. Finally, during a mean follow-up of 25 ± 15 months, 63 of 80 (79%) patients remained in sinus rhythm (SR) after the final procedure (two procedures in 48%, and three in 3%). A Cox regression multivariate analysis revealed that left atrial volume (LAV) was the only independent predictor of atrial tachyarrhythmia recurrences not only after single procedures (p = 0.027), but also after the final procedures (p = 0.001). Ten patients (13%) needed ablation for concomitant atrial tachycardias originating from the left atrium and right atrium other than common atrial flutter. Repeat ablation procedures increased the best cut-off value for predicting recurrences analyzed by receiver operating characteristic curves, from 86 mL (sensitivity 70%, specificity 64%) to 92 mL (sensitivity 71%, specificity 78%).

CONCLUSIONS:
PVAI-based ablation strategies could achieve SR maintenance in almost 80% of NPAF patients after multiple procedures during long-term follow-up. The preprocedural LAV was an important predictor of the procedural outcome.
DOI 10.1016/j.jjcc.2013.11.010