Relation of QT-Interval Variability to Ventricular Arrhythmias During Percutaneous Transluminal Coronary Angioplasty
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概要
- 論文の詳細を見る
The present study investigated the role of the dispersion of QT interval in percutaneous transluminal coronary angioplasty(PTCA)-induced ventricular tachyarrhythmias. Patients with effort angina without a previous myocardial infarction(n=22), who had single-vessel disease of the anterior descending coronary artery(LAD), underwent PTCA if the coronary lesion was 75% or more stenosed in segment 6 or 7 of the LAD. The standard 12-lead ECG was continuously recorded during the procedure. Averaged QTc and QTac intervals, where QTac was the interval from the beginning of QRS complex to the nadir of T wave corrected by Bazett's formula, did not change significantly during PTCA. Of the 22 patients, 7 showed ventricular arrhythmias during PTCA. The maximum difference(ΔQTc)and the standard deviation(QTcSD)of the corrected QT interval in the standard 12-lead ECG increased significantly during PTCA in the 7 patients with ventricular arrhythmias, whereas they decrreased in the 15 patients without ventricular arrhythmias. ΔQTac and QTacSD were not affected by PTCA regardless of ventricular arrhythmias, which shows that the increases in the variation of the ventricular repolarization process play a role in PTCA-induced ventricular arrhythmias.
- 社団法人日本循環器学会の論文
- 2001-08-20
著者
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Tsuji T
Department Of Cardiovascular Medicine Okayama University Graduate School Of Medicine And Dentistry
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Oka Takefumi
Department of Cardiovascular Medicine, Okayama University Graduate School of Medicine, Dentistry and
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TSUJI TAKAO
The First Depertment of Internal Medicine, Okayama University Medical School
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Tanemoto Kazuo
Cardiovascular Surgery, Kawasaki Medical School
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DOI Masayuki
Department of Internal Medicine, Division of Cardiology, Sumitomo Besshi Hospital
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Shiraki Teruo
Iwakuni National Hospital
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Saito Daiji
Iwakuni National Hospital
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Saito Daiji
Department Of Laboratory Medicine Okayama University Medical School
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Saito Daiji
Department Of Cardiology National Hospital Organization Iwakuni Clinic Center
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Saito Daiji
The Department Of Laboratory Medicine
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Oka Takefumi
Iwakuni National Hospital
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Tanemoto Kazuo
Cardiovascular Surgery Iwakuni National Hospital
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Saito Daiji
Department Of Cardiovascular Medicine Okayama University
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SHIRAKI TERUO
The Department of Laboratory Medicine
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Doi Masayuki
Department Of Internal Medicine Division Of Cardiology Sumitomo Besshi Hospital
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Doi Masayuki
Department Of Biopharmaceutics Kyoto Pharmaceutical University
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Shiraki Teruo
Department of Cardiology, National Hospital Organization, Iwakuni Clinic Center
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Kajiyama Akio
Departments of Cardiology, Iwakuni National Hospital
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Murakami Takashi
The First Department of Internal Medicine, Okayama University Medical School
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Masaka Takuro
Departments of Cardiology, Iwakuni National Hospital
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Kajiyama Akio
Iwakuni National Hospital
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Tsuji Takao
The First Depertment Of Internal Medicine Okayama University Medical School
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Tsuji Takao
The First Department Of Internal Medicine
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Doi Masayuki
Departments Of Cardiology Iwakuni National Hospital
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Masaka Takuro
Departments Of Cardiology Iwakuni National Hospital
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Shiraki Teruo
The 1st Dept.of Internal Medicine Okayama University Medical School
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Shiraki Teruo
Department Of Cardiology National Hospital Organization Iwakuni Clinic Center
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Saito Daiji
1st Dept. Intern. Med. Okayama Univ. School Of Med.
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Oka Takefumi
Department Of Cardiology Okayama University
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Saitio Daiji
岡山大学 循環器内科
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Taguchi Takehito
Department Of Radiological Technology Faculty Of Health Sciences Okayama University School Of Medici
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Oka Takefumi
Department of Applied Physics, Tokyo Institute of Technology
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