Relation between Myocardial Contractility and Stiffness in Clinical Cases
スポンサーリンク
概要
- 論文の詳細を見る
Left ventricular myocardial stiffness was evaluated in 50 patients who underwent cardiac catheterization. Left ventricular cineangiograms and simultaneously recorded left ventriculr pressure tracings were analyzed. The left ventricular stiffness constant k was computed by substituting the left ventricular myocardial stress (σ) and strain (ε) throughout the period between the end of rapid filling and the beginning of atrial contraction in the equation σ=b・e^<κ・ε>. Left ventricular myocardial stiffness constants were measured as follows: Group I (normal, 9)-10.0±3.8, Group II (mitral stenosis, 8)-10.4±3.4, Group III (left ventricular volume overload, 11)-11.7±3.4, Group IV (coronary artery disease without myocardial infarction, 10)-8.9±2.2, and Group V (myocardial infarction, 12)-20.1±7.9. All of the normal cases showed stiffness constants of less than 15 and maxVcf of more than 2.0 circ./sec., and all of the patients with heart failure in Groups III-V showed stiffness constants of more than 15 and maxVcf of less than 1.0 circ./sec. Thirteen patients who had surgical indications and who also did not have increased myocardial stiffness (k less than 15) with or without abnormal values of contractility indices underwent corrective cardiac surgery with satisfactory results and normal morphological findings in myocardium. Thus, assessment of left ventricular myocardial stiffness offers useful additional information concerning cardiac status in clinical cases.
- 東海大学の論文
著者
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Kuribayashi Sachio
Department of Diagnostic Radiology, Keio University School of Medicine
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Kuribayashi Sachio
Department Of Diagnostic Radiology Keio University School Of Medicine
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SHOTSU Akira
Department of Surgery, School of Medicine, Tokai University
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SASAMOTO HIROSHI
Department of Internal Medicine, Keio University Hoipital
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KOIDE Shirosaku
Department of Surgery, Physiology, and Cardiology, and Center for Regenerative Medicine, Tokai Unive
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MATSUYAMA Seiya
Department of Radiology, Tokai University
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TOMODA Haruo
Department of Cardiology, School of Medicine, Tokai University
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Kuribayashi Sachio
Department Of Radiology School Of Medicine Tokai University
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Shouzu Akira
Department Of Surgery School Of Medicine Tokai University
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MATSUMOTO Sadatoshi
Department of Cardiology, School of Medicine Tokai University
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KAWADA Shimei
Department of Cardiovascular Surgery, School of Medicine Tokai University
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MATSUMOTO Sadatoshi
Dpt.Medicine,Thoracic Surg.and Radiology,Sch.Med.,Tokai University
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Sasamoto Hiroshi
Department Of Internal Medicine Keio University Hoipital
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Sasamoto Hiroshi
Department Of Internal Medicine School Of Medicine Tokai University
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Matsuyama Seiya
Department Of Internal Medicine Tokai University School Of Medicine
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Tada Hiroki
Department Of Internal Medicine Tokai University
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Tamachi H
Tokai Univ. School Of Medicine Jpn
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Kawada Shiaki
The 1st Department Of Surgery School Of Medicine Tokai University
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Kawada Shimei
Department Of Surgery School Of Medicine Tokai University
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Koide Shrosaku
Department Of Surgery School Of Medicine Tokai University
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MATSUYAMA SEIYA
Radiology, School of Medicine, Tokai University
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Koide Shirosaku
The 1st Department Of Surgery School Of Medicine Tokai University
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Koide Shirosaku
Department Of Cardiovascular Surgery Tokai University School Of Medicine
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Shotsu Akira
Department Of Surgery School Of Medicine Tokai University
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Shohtsu Akira
The First Department Of Surgery School Of Medicine Tokai University
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Tamachi Hiromitsu
Department Of Internal Medicine Tokai University School Of Medicine
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Koide Shirosaku
Department Of Surgery School Of Medicine Tokai University
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Koide Shirosaku
Dept. Of Cardiovascular Surgery Keio Univ. School Of Medicine
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Tomoda Haruo
Department Of Cardiology
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Sasamoto Hiroshi
Department Of Internal Medicine School Of Medicine Keio University
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Tomoda Haruo
Department Of Internal Medicine School Of Medicine Keio University
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Sasamoto Hiroshi
Department Of Cardiology School Of Medicine Tokai University
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Matsuyama Seiya
Radiology School Of Medicine Tokai University
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Matsuyama Seiya
Dpt.medicine Thoracic Surg.and Radiology Sch.med. Tokai University
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Tomoda Haruo
Tohkai University School Of Medicine Department Of Internal Medicine Cardiology
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Matsumoto Sadatoshi
Dpt.medicine Thoracic Surg.and Radiology Sch.med. Tokai University
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Matsumoto Sadatoshi
Department Of Cardiology Toranomon Hospital.
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Sasamoto Hiroshi
Dept. Of Intern. Med. Keio Univ. Sch. Of Med.
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Tamachi Hiromitsu
Tohkai University School Of Medicine Department Of Internal Medicine Cardiology
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Tomoda Haruo
Department Of Internal Medicine Tokai University School Of Medicine
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Sasamoto Hiroshi
Department Of Medicine Radiology And Thoracic Surgery. School Of Medicine Tokai University.
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KAWADA Shimei
Department of Cardiology and Cardiovascular Surgery, Tokai University Hospital
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SASAMOTO Hiroshi
Department of Cardiology and Cardiovascular Surgery, Tokai University Hospital
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