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著者
Ahmmed Gias Uddin First Department of Internal Medicine, Faculty of Medicine, Tottori University
Miyakoda Hiroyuki First Department of Internal Medicine, Faculty of Medicine, Tottori University
Shigemasa Chiaki First Department of Internal Medicine, Faculty of Medicine, Tottori University KAKEN
キーワード
body surface ECG mapping
coronary artery disease
exercise test
QRST isointegral mapping
抄録
To assess the exercise-induced changes in repolarization properties in patients with coronary artery disease, we analyzed body surface ECG mapping. The patients studied had a normal resting 12-lead ECG and were divided into 2 groups: group A (n = 15; coronary artery narrowing [?], exercise thallium defect [?], ST depression 0.1 mV [?]) and group B (n = 17; [+], [+], [+]). All patients in group B showed significant area (< ?10 ?V?s) in the postexercise ST-T isointegral map. Of the patients in group B, 10 (59%) showed significant area in the postexercise QRST isointegral map and 15 (88%) showed “?2SD area (less than mean ?2SD values in group A)” in the difference map between resting and postexercise QRST isointegrals. The correlation coefficient between resting and postexercise QRST isointegrals in 87 lead points was significantly lower in group B (0.28 ± 0.56) than in group A (0.91 ± 0.06, P < 0.001). Our results indicate that patients with ischemic ST depression have a greater decrease in the QRST isointegral values in the precordial region than patients without ischemia and ST depression. There are also low similarities between resting and postexercise QRST isointegral maps. We conclude that ischemic ST depression is related to the dispersion of the exercise-induced changes in repolarization properties.
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
40
2
開始ページ
107
終了ページ
116
発行日
1997-07
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. 1997, 40(2), 107-116
部局名
医学部・医学系研究科・医学部附属病院
言語
英語