フルテキストファイル
著者
Moritani Hisato Division of Pharmacotherapeutics, Department of Pathophysiological and Therapeutic Science, School of Medicine, Tottori University Faculty of Medicine
Hasegawa Junichi Division of Pharmacotherapeutics, Department of Pathophysiological and Therapeutic Science, School of Medicine, Tottori University Faculty of Medicine KAKEN
Marumoto Akira Division of Pharmacotherapeutics, Department of Pathophysiological and Therapeutic Science, School of Medicine, Tottori University Faculty of Medicine
Sano Akiko Division of Pharmacotherapeutics, Department of Pathophysiological and Therapeutic Science, School of Medicine, Tottori University Faculty of Medicine KAKEN
Miura Norimasa Division of Pharmacotherapeutics, Department of Pathophysiological and Therapeutic Science, School of Medicine, Tottori University Faculty of Medicine KAKEN
キーワード
atrial fibrillation
atrial flutter
catheter ablation
heart rate variability
抄録
Efficacy of radiofrequency (RF) catheter ablation in suppressing atrial fibrillation (AF) was studied by analysis of heart rate variability (HRV) in 13 patients with atrial flutter complicated with AF. We treated these patients by RF ablation of the isthmus between the tricuspid valve annulus and the inferior vena cava to create a bidirectional conduction block. To analyze the HRV, 24-h ambulatory electrocardiographic monitoring was performed 1 day before, 1 day after and 1 month after the ablation. After the RF ablation of the isthmus, 7 patients continued to experience AF attacks, while the remaining 6 patients did not. We divided them into 2 groups, attacked by AF (AF group) and not attacked by AF (non-AF group), and analyzed HRV parameters. The results obtained were compared between the groups. One month after the ablation, the non-AF group showed a significantly higher average heart rate than the AF group. The HRV parameters indicating cardiac vagal nervous activities, such as the root-mean-square of differences, percentage of adjacent normal RR intervals and high frequency power, were significantly lower in the non-AF group 1 month after. Furthermore, the ratio of low frequency power to high frequency power, which is a measure for cardiac sympathetic nervous activity, was significantly higher in the non-AF group 1 month after. From these results, we postulate that the suppression of postoperative AF may involve vagal nerve suppression and sympathetic nerve activation.
出版者
Tottori University Faculty of Medicine
資料タイプ
学術雑誌論文
ISSN・ISBN
1346-8049
書誌ID
AA00892882
掲載誌名
Yonago Acta medica
最新掲載誌名
Yonago Acta medica
48
1
開始ページ
17
終了ページ
25
発行日
2005-03
著者版フラグ
出版社版
著作権表記
Yonago Acta medica 編集委員会
掲載情報
Yonago Acta medica. 2005, 48(1), 17-25
部局名
医学部・医学系研究科・医学部附属病院
言語
英語