ID 109588
著者
サイトウ, ケン Department of Chronomedicine, Institute of Health Biosciences, the University of Tokushima Graduate School 徳島大学 教育研究者総覧 KAKEN研究者をさがす
タケダ, シホ School of Health Sciences, the University of Tokushima
サイトウ, ユウコ Department of Cardiovascular Medicine, Institute of Health Biosciences, the University of Tokushima Graduate School
カワムラ, マミ School of Health Sciences, the University of Tokushima
ヨシカワ, ヨウコ Department of Cardiology, Sekishinkan Hospital
ヤノ, ハヤト Department of Cardiology, Sekishinkan Hospital
佐田, 政隆 Department of Cardiovascular Medicine, Institute of Health Biosciences, the University of Tokushima Graduate School 徳島大学 教育研究者総覧 KAKEN研究者をさがす
キーワード
Paroxysmal AV block
Ambulatory electrocardiography
Circadian rhythm
Syncope
Right bundle branch block
資料タイプ
学術雑誌論文
抄録
The goal of this study was to investigate the electrocardiographic and chronobiological features of paroxysmal atrioventricular (AV) block (PAVB) using data from ambulatory electrocardiography (AECG). The study population consisted of five men and six women aged from 47 to 82 years of age. Main presenting symptoms were pre-syncope in five patients (45.5%) and syncope in three patients (27.3%). Organic cardiovascular diseases were seen in eight patients (72.7%), and AV conduction disturbances were seen in six patients (54.5%), such as right bundle branch block, first to second degree AV block on standard 12-lead electrocardiography. Incidence of PAVB events were 1-329 (37.9±98.0) episodes/patient/day, and the maximum pause during Holter recordings was 3.3-12.4 (6.39±3.09) seconds. This maximum pause caused by intrinsic AV block was longer than that of vagally mediated AV block (8.4±3.2 sec vs 4.7±1.0 sec, p<0.05). In chronobiological analysis, episodes of PAVB exhibited a circadian rhythm characterized by a peak between 2 : 00 am and 4 : 00 am and a trough between 0 : 00 pm and 2 : 00 pm. AECG is a useful tool to detect the maximum pause occurring during sleep and provides critical data necessary to prevent the sudden cardiac death caused by PAVB.
掲載誌名
The journal of medical investigation : JMI
ISSN
13431420
cat書誌ID
AA11166929
61
3-4
開始ページ
380
終了ページ
387
並び順
380
発行日
2014-08
EDB ID
285923
フルテキストファイル
言語
eng
著者版フラグ
出版社版
部局
医学系