サトウ キヨウコ   SATO Kyoko
  佐藤 恭子
   所属   医学部 医学科(東医療センター)
   職種   講師
論文種別 原著
言語種別 英語
査読の有無 査読あり
表題 Rhythm-independent feature of heart rate dynamics common to atrial fibrillation and sinus rhythm in patients with paroxysmal atrial fibrillation.
掲載誌名 正式名:Journal of cardiology
略  称:J Cardiol
ISSNコード:0914-5087(Print)0914-5087(Linking)
巻・号・頁 42(6),269-76頁
著者・共著者 Sato Kyoko, Yamasaki Fumiyasu, Furuno Takashi, Hamada Tomio, Mukai Seiji, Hayano Junichiro, Sugiura Tetsuro, Doi Yoshinori
発行年月 2003/12
概要 OBJECTIVES:To examine if the long-range correlation in heart rate variability is a rhythm-independent characteristic common to both atrial fibrillation (AF) and sinus rhythm (SR) periOBJECTIVES:ods in patients with paroxysmal atrial fibrillation (PAF).METHODS:Holter electrocardiography was analyzed during sleep in 18 patients with paroxysmal atrial fibrillation during the atrial fibrillation (PAF-AF) and sinus rhythm (PAF-SR) periods, and also in 19 healthy controls with sinus rhythm (CTR-SR). The heart rate dynamics were assessed with the power-law spectral exponent (slope) of the log-log power spectrum between 0.0001 Hz and the breakpoint frequency.RESULTS:The slope showed a significant correlation between PAF-SR and PAF-AF (r = 0.614, pRESULTS:<RESULTS:0.01). During sinus rhythm, the slope in paroxysmal atrial fibrillation with cardiovascular disease [PAF-SR (cvd+)RESULTS:]RESULTS:was steeper than that in paroxysmal atrial fibrillation without cardiovascular disease [PAF-SR (cvd-)RESULTS:]RESULTS:(pRESULTS:<RESULTS:0.05). Although the slope was comparable between PAF-SR (cvd-) and CTR-SR, the slope in PAF-SR (cvd+) was steeper than that in CTR-SR (pRESULTS:<RESULTS:0.05). A similar tendency was shown during atrial fibrillation. The slope in paroxysmal atrial fibrillation with cardiovascular disease [PAF-AF (cvd+)RESULTS:]RESULTS:was steeper than that in paroxysmal atrial fibrillation without cardiovascular disease [PAF-AF (cvd-)RESULTS:]RESULTS:(pRESULTS:<RESULTS:0.05). Although the slope was comparable between PAF-AF (cvd-) and CTR-SR, the slope in PAF-AF (cvd+) tended to be steeper than that in CTR-SR.CONCLUSIONS:The long-range correlation in heart rate variability during sleep was a rhythm-independent characteristic and so may have a similar clinical value during atrial fibrillation and sinus rhythm in patients with paroxysmal atrial fibrillation.
文献番号 14723019