Capacitive effects on canine coronary artery diastolic pressure-flow relationships.
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概要
- 論文の詳細を見る
The extent of capacitive effects on coronary diastolic pressureflow relationships was investigated by proposing a theoretical model and by actually measuring the time constants of the coronary and systemic circulation. The dynamic pressure-flow relationship obtained by an aortic declining pressure perfusion and the static pressure-flow relationship obtained by constant pressure reservoir perfusion were compared to support the theoretical model, which revealed that the capacitive effects could be quantified by the α value, i.e. the ratio of the time constants of the coronary and systemic circulations. In 10 anesthetized dogs, the two independent methods disclosed that capacitive effects are limited and diastolic outflow pressure in the coronary circulation is the static zero-flow pressure intercept determined by the vascular tonus and intramyocardial pressure.
- International Heart Journal刊行会の論文
著者
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Nakazawa Hiroe
Department Of Cardiovascular Research Research Institute Of Environmental Medicine Nagoya University
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Horikawa Muneyuki
Nihonkoden Co. Ltd.
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Nakamura Yoshiro
Cardio-pulmonary Division Department Of Medicine Keio University School Of Medicine
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Nishikawa Yasuhiro
Cardiopulmonary Division Department Of Internal Medicine School Of Medicine Keio University Tokyo
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Hori Shingo
Cardiopulmonary Division Department Of Internal Medicine School Of Medicine Keio University Tokyo
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Murayama Akira
Cardiopulmonary Division Dept Of Med. School Of Med. Keio University
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NAKAZAWA Hiroe
Department of Physiology, School of Medicine, Tokai University
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HORI Shingo
Cardiopulmonary Division, School of Medicine, Keio University
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MURAYAMA Akira
Cardiopulmonary Division, School of Medicine, Keio University
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HORIKAWA Muneyuki
Nihon Kohden Kogyo Ltd.
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NAKAMURA Yoshiro
Cardiopulmonary Division, School of Medicine, Keio University
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