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A case of cardiac tamponade showing respiratory variation in inflow and outflow velocities in both ventricles and venous return Yoriko Shimamoto 1 , Mitsunori Okamoto 2 , Kazuhiko Morishita 2 , Tokuo Tsubokura 2 , Junko Mukai 3 , Takuji Kawagoe 3 , Tatsuya Hondoh 3 , Hideyo Amioka 3 , Hideo Matsuura 3 , Goro Kajiyama 3 1Department of Internal Medicine, Nakamura Hospital 2Division of Clinical Laboratory, Hiroshima University School of Medicine 3First Department of Internal Medicine, Hiroshima University School of Medicine Keyword: 心タンポナーデ(cardiac tamponade) , 超音波パルス・ドプラー法(pulsed Doppler echocardiography) , 両心室流入血流(Transvalvular blood flow) pp.497-500
Published Date 1990/5/15
DOI https://doi.org/10.11477/mf.1404900151
  • Abstract
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A case of a 62-year-old man with a large pericardi-al effusion is presented. He developed clinical signs of cardiac tamponade. Two-dimensional echocardio-graphy revealed collapse of the right ventricle in early diastole and inversion of the free wall of both atria in systole. Pulsed Doppler echocardiography demonstrated an abnormally increased respiratory variation in transvalvular blood flow velocities. Ex-piration caused an increase in the flow velocities across the mitral and aortic valves, and a decrease in the flow velocity across the tricuspid valve. The exaggerated respiratory variations in transvalvular flow velocities suggest that Doppler evaluation may be a valuable adjunct in the diagnosis of cardiac tamponade.


Copyright © 1990, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1200 印刷版ISSN 0452-3458 医学書院

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