Characteristic Findings of Body Surface Potential Map during Ventricular Repolarization in Patients with Coronary Heart Disease.
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概要
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The objective of the present study was to investigate the characteristics of body surface potential map (BSPM) findings during ventricular repolarization in patients with coronary artery disease (CAD). A total of 108 consecutive patients, 99 men and 9 women with angina pectoris and positive treadmill exercise test results as well as angiographically documented CAD underwent BSPM study in a fasting state. Their ages ranged from 30 to 70 years. There were 13 patients with right coronary artery (RCA) lesions, 37 with left anterior descending artery (LAD) lesions, 5 with left circumflex artery (LCX) lesions, 17 with both RCA and LAD lesions, 12 with both LCX and LAD lesions, and 24 with 3-vessel disease. The BSPMs were obtained by using the heart potential map system designed by Toyama et al. There were 59 lead points on the anterior chest wall and 28 on the back. The BSPMs in isopotential distribution were made every one msec throughout the ventricular activation period. The distribution of positive and negative potentials, potential maximum and potential minimum, polarity of potential distribution, and the reversal of potential distribution during ventricular repolarization were analyzed. The following information on BSPMs was obtained: (1) In early ventricular repolarization, the negative potential and the potential minimum appeared abnormally on the anterior thorax. The potential abnormality displayed on the right portion or the inferior portion in patients with RCA lesions, on the middle portion or the left portion in patients with LAD lesions, and on the left-superior portion or the left-middle portion in patients with LCX lesions. In patients with multi-vessel disease, the abnormal potential distribution showed a combined pattern of individual vessel lesions. (2) In some cases, the multipolar potential distribution appeared abnormally during the initial stage and the peak of the T wave. (3) The reversal of potential distribution was observed in about half of the patients. The characteristic findings of the BSPM during ventricular repolarization, including abnormal potential distribution, multipolar potential distribution and reversal of potential distribution, will be of clinical value in patients with CAD.
- International Heart Journal刊行会の論文
著者
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LIN Jiunn-Lee
Department of Pediatrics and Medicine, National Taiwan University Hospital
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Hwang Juey-jen
Department Of Internal Medicine National Taiwan University Hospital
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TSENG Yung-Zu
Department of Internal Medicine, College of Medicine, National Taiwan University
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CHIANG Fu-Tien
Department of Internal Medicine
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Lo Huey-Ming
Department of Internal Medicine
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TSENG Chuen-Den
Department of Internal Medicine
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HSU Kwan-Lih
Department of Internal Medicine
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HWANG Juey-Jen
Department of Internal Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
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LAI Ling-Ping
Department of Internal Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
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HSU Kwan-Lih
Department of Internal Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
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Tseng Yung-Zu
Department of Cardiology, Show-Chwan Memorial Hospital
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TSENG Yung-Zu
Department of Internal Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
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LO Huey-Ming
Department of Internal Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
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LIN Jiunn-Lee
Department of Internal Medicine, College of Medicine, National Taiwan University
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