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The Effect of Restriction of Venous Return on Ischemic Heart Masayoshi Yokoyama 1 , Tomio Akimoto 1 , Kazuo Kishi 1 , Yaeko Ota 1 1Japan Heart Institute of Tokyo Women's Medical Colledge pp.603-607
Published Date 1968/7/15
DOI https://doi.org/10.11477/mf.1404201921
  • Abstract
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Our experiments using 13 dogs observed that reduction of the venous return to the he-art brings about decrease in cardiac work and myocardial oxygen consumption.

In all of the 13 dogs, partial ligation of the left anterior descending and the left circumflex ooronary arteries resulted in depression of the ST-segment in electrocardiograms. Following this procedure, when the inferior vena cava was partially ligated so as to maintain the ao-rtic pressure at 80% of that of the control, the depressed ST-segment returned to the iso-electric line. Next, when the partial ligation of the inferior vena cava was released, the ST-segment became depressed.

It is our belief that reduction in the venous return to the heart decreases oxygen consump-tion by the myocardium, because there is less work for the myocardium to do. Therefore, the once depressed ST-segment returns to the normal line.


Copyright © 1968, 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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