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フルテキストURLA020038000306.pdf ( 1.8MB ) 公開日 2010-04-19
タイトルSpectral Analysis of Endocardial Electrogram on the High-Lateral Right Atrium during Sinus Rhythm and Pacing stimuli: The Relationship between the Frequency Spectrum of Atrial Wave and the Occurrence of Atrial Fibrillation
作成者Sugihara, Nobuyuki
Date, Toshiaki
Takahashi, Tetsuro
Hesaka, Kohji
Matsuzaki, Masunori
作成者ヨミスギハラ, ノブユキ
ダテ, トシアキ
タカハシ, テツロウ
ヘサカ, コウジ
マツザキ, マスノリ
作成者所属山口大学医学部
内容記述(抄録等)The provocation of atrial fibrillation (Af) was studied in 23 patients by 10 single extrastimulations, and by rapid pacing over three minutes at the mid-lateral right atrium. The frequency spectrum of atrial electrogram on the high- lateral right atrium (HRA) was simultaneously computed with the fast-Fourier transform analysis. Result were shown as follows: 1) The single extrastimulation induced no Af in any patients, but rapid pacing induced Af in 20 patients with various heart diseases and the shorter interval of atrial effective refractory period (AERP). 2) All of the 5 patients with a history of transient Af had significantly shorter AERP of the right atrium than that in patients without a history of Af. 3) During both single extrastimulation and rapid pacing, both the higer- and lower-frequency components of atrial electrogram in patients with induction of Af were greater in amplitude than those in patients without induction of Af. The patients with induction of Af by pacing of may have the vulnerable electrophysiologic condition around the region of HRA, probably related to the higher sensitivity of right atrium to the pacing stimuli, regardless of the basal heart disease.
本文言語eng
著者キーワードAtrial fibrillation
Atrial vulnerability
Frequency analysis
Rapid pacing
Fragmentation
主題医学
資料タイプtext
ファイル形式application/pdf
出版者Yamaguchi University Graduate School of Medicine
NII資料タイプ紀要論文
ISSN0513-1812
NCIDAA00594272
学内刊行物(紀要等)The bulletin of the Yamaguchi Medical School
掲載誌名The bulletin of the Yamaguchi Medical School
掲載誌名別表記山口医科大学紀要
38
3-4
開始ページ71
終了ページ81
発行日1991-12
著者版/出版社版出版社版
リポジトリIDA020038000306
地域区分山口大学
URIhttp://www.lib.yamaguchi-u.ac.jp/yunoca/handle/A020038000306