Echocardiogram in Pulsus Paradoxus : Respiration Dependent Cyclic Changes in Mitral and Aortic Valve Motion : A Case Report
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概要
- 論文の詳細を見る
The mechanism of production of pulsus paradoxus was echocardiographically studied in a 74-year-old male with subacute effusive-constrictive pericarditis which developed to constrictive pericarditis under the observation. Echocardiography disclosed the following phenomena during inspiration: 1) mitral valve did not open until the atrial systole, probably because of the lack of antegrade mitral flow during rapid filling phase (the E wave was not observed), 2) concomitantly, aortic valve opening decreased markedly in its grade, and 3) left ventricular ejection time (LVET) decreased and pre-ejection period (PEP) increased, resulting in a higher PEP/LVET ratio (up to 1.32). The opposite was true during expiration (PEP/LVET ratio was 0.40).This is probably the first case, in which the mechanism of pulsus paradoxus was investigated by aortic and mitral valve echograms.
- International Heart Journal刊行会の論文
著者
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HADA Yoshiyuki
Second Department of Internal Medicine, Faculty of Medicine, University of Tokyo
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SAKAMOTO Tsuguya
Second Department of Internal Medicine, Faculty of Medicine, University of Tokyo
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HAYASHI Terumi
Second Department of Internal Medicine, Faculty of Medicine, University of Tokyo
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ICHIYASU Hirofumi
Second Department of Internal Medicine, Faculty of Medicine, University of Tokyo
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AMANO Keiko
Second Department of Internal Medicine, Faculty of Medicine, University of Tokyo
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TEI Chuwa
Second Department of Internal Medicine, Faculty of Medicine, University of Tokyo
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SERIZAWA Tsuyoshi
Second Department of Internal Medicine, Faculty of Medicine, University of Tokyo
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Sakamoto Tsuguya
Second Department Of Internal Medicine University Of Tokyo
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