INFLUENCE OF ACUTE THERMAL DEHYDRATION UPON THE QRS COMPLEX : The Fifth Conference on Vectorcardiography
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概要
- 論文の詳細を見る
The response of the contractile and the series elastic elements to ischemia was studied with isometric contraction and quick release methods after measuring the passive length-tension relationship in glycerinated heart muscle fibers of dogs at resting state. Myocardial infarction was induced by ligating left coronary artery. Muscle fibers taken from the ischemic area three hours after ligation demonstrated reduction in maximal developed tension (P_0), the maximal rate of tension development (dp/dt_<max>) and V_<max>. The time to peak tension (t_0) was increased. As in fresh papillary muscle the modulus of elasticity of active glycerinated muscle increased in proportion to load. The stiffness of the series elastic element elevated significantly in ischemic muscle fibers. The passive stiffness in resting state showed a decrease in the slope accompanied by an increase in the intercept in ischemic heart muscle. Therefore, increased stiffness of the series elastic element and diminished contractility are present following acute myocardial infarction.
- 社団法人日本循環器学会の論文
- 1980-07-20
著者
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Shimada Hideyo
National Higashisaitama Hospital
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Shimada Hideyo
The Second Department Of Internal Medicine Kyorin University School Of Medicine
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Yanagisawa Atsuo
Second Department Of Internal Medicine Kyorin University School Of Medicine
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Ono Akifumi
The 2nd Department of Internal Medicine, Kyorin University, School of Medicine
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Tsuya Tsuneo
The 2nd Department of Internal Medicine, Kyorin University, School of Medicine
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Shirato Chiaki
The 2nd Department of Internal Medicine, Kyorin University, School of Medicine
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Yanagisawa Atsuo
The 2nd Department of Internal Medicine, Kyorin University, School of Medicine
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Ishikawa Kyozo
The 2nd Department of Internal Medicine, Kyorin University, School of Medicine
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Ono Akifumi
The Second Department Of Internal Medicine Kyorin University School Of Medicine
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Tsuya Tsuneo
2nd Department Of Internal Medicine Kyorin University
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Shimada Hideyo
The 2nd Department Of Internal Medicine Kyorin University School Of Medicine
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Shirato Chiaki
The Second Department Of Internal Medicine Kyorin University School Of Medicine
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Tsua Tsuneo
2nd Department Of Internal Medicine Kyorin University
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Hirata Shunichi
The 2nd Department of Internal Medicine, Kyorin University, School of Medicine
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Yanagisawa Atsuo
The Second Department Of Internal Medicine Kyorin University School Of Medicine
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Yanagisawa Atsuo
The 2nd Department Of Internal Medicine Kyorin University School Of Medicine
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Ishikawa Kyozo
The 2nd Department Of Internal Medicine Kyorin University School Of Medicine Tokyo
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Yanagisawa Atsuo
Second Department of Internal Medicine, Kyorin University School of Medicine
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