Tissue Velocity Imaging-Based Atrial Fibrillatory Cycle Length and Wall Motion for Predicting Atrial Structural Remodeling in Patients Undergoing Catheter Ablation

• Sonoda Kazumasa

  Division of Cardiology, Department of Medicine, Nihon University School of Medicine

• Okumura Yasuo

  Division of Cardiology, Department of Medicine, Nihon University School of Medicine

• Watanabe Ichiro

  Division of Cardiology, Department of Medicine, Nihon University School of Medicine

• Nagashima Koichi

  Division of Cardiology, Department of Medicine, Nihon University School of Medicine

• Kofune Masayoshi

  Division of Cardiology, Department of Medicine, Nihon University School of Medicine

• Mano Hiroaki

  Division of Cardiology, Department of Medicine, Nihon University School of Medicine

• Kogawa Rikitake

  Division of Cardiology, Department of Medicine, Nihon University School of Medicine

• Sasaki Naoko

  Division of Cardiology, Department of Medicine, Nihon University School of Medicine

• Ohkubo Kimie

  Division of Cardiology, Department of Medicine, Nihon University School of Medicine

• Nakai Toshiko

  Division of Cardiology, Department of Medicine, Nihon University School of Medicine

• Hirayama Atsushi

  Division of Cardiology, Department of Medicine, Nihon University School of Medicine

抄録

Background:Atrial fibrillation (AF) causes atrial electrical and structural remodeling, which are linked to recurrence of AF after ablation. Atrial fibrillatory cycle length (AFCL) and AF wall motion velocity (AFW-V) obtained by tissue velocity imaging (TVI) might characterize such atrial electrical and structural remodeling. The purpose of this study was to assess the clinical and electrophysiologic correlates of these parameters and their relation to ablation outcomes.Methods and Results:The study group comprised 80 patients who underwent transthoracic echocardiography followed by AF ablation. Atrial TVI traces were used to determine AFCL-tvi and AFW-V-tvi at the left atrial septal wall. AFCL that was measured from intracardiac electrograms correlated well with AFCL-tvi (R=0.6094; P=0.0002). AFW-V-tvi was significantly lower and AFCL-tvi was significantly shorter in patients with non-paroxysmal AF than in those with paroxysmal AF (1.63±0.76 cm/s vs. 2.85±1.00 cm/s, respectively, P<0.0001; and 118.2±23.0 ms vs. 145.0±35.0 ms, respectively, P=0.0001). These findings held true for patients with and without post-ablation recurrence. Upon multivariate analysis, a reduced AFW-V-tvi remained the strongest predictor of post-ablation recurrence (hazard ratio for +1-cm/s change, 0.573; 95% confidence interval, 0.337–0.930; P=0.0234).Conclusions:TVI of atrial fibrillatory wall motion might enhance the non-invasive characterization of atrial remodeling in patients with AF and thus be used for predicting AF recurrence after ablation. (Circ J 2014; 78: 1619–1627)

収録刊行物

• Circulation Journal

  Circulation Journal 78 (7), 1619-1627, 2014

  一般社団法人 日本循環器学会

キーワード

• Ablation
• Atrial fibrillation
• Atrial fibrillatory cycle length
• Atrial fibrillatory velocity
• Tissue velocity imaging

詳細情報

• CRID: 1390282680083094528
• NII論文ID: 130004926962
• NII書誌ID: AA11591968
• DOI: 10.1253/circj.cj-14-0017
• COI: 1:STN:280:DC%2BC2cjkvVGitA%3D%3D
• ISSN: 13474820
• ISSN: 13469843
• NDL書誌ID: 025533616
• PubMed: 24848777
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I025533616
• Web Site: https://www.jstage.jst.go.jp/article/circj/78/7/78_CJ-14-0017/_pdf
• Web Site: https://search.jamas.or.jp/link/ui/2015132860
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • PubMed
  • CiNii Articles
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