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Japanese

Construction of left ventricular function curves by noninvasive method and these clinicalusefulness Shinobu Matsui 1 , Kazuhiro Masuya 1 , Eiji Murakami 1 , Noboru Takekoshi 1 , Yoshitake Hiramaru 1 , Shigeki Hara 1 , Eiichi Kitano 1 , Hidenori Murakami 1 , Takashi Saga 1 , Masayuki Nomura 1 , Shizuka Fujita 1 1Division of Cardiology, Department of Internal Medicine, Kanazawa Medical University pp.971-975
Published Date 1979/9/15
DOI https://doi.org/10.11477/mf.1404203429
  • Abstract
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In order to construct left ventricular function curves by non-invasive method and assess these clinical usefulness, echocardiographic LV dia-meters and left ventricular ejection times ob-tained from carotid pulse tracing were measured on supine position before and 1, 3, 5 and 10 mins after leg-raising (LR) and venous tourniquet (VT) in 9 healthy men and in 10 patients with heart disease. After LR and VT, mean arterial blood pressure and heart rate were not altered significantly. End-diastolic volumes and stroke volumes increased after LR and decreased after VT significantly. Mean velocity of circumfer-ential fiber shortening (meanVcf) increased sig-nificantly after LR. By plotting stroke volumes against end-diastolic volumes before and after LR and VT, ventricular function curves upon which the heart was operating could be assessed. In patients with heart disease, ventricular function curves were located downward and to the right as compared with those of healthy men, and in 4 patients with heart disease ventricular func-tion curves were shifted upward and to the left after administration of digitalis. These data demonstrate that LR and VT appears to be a safe and useful means of changing preload, and ventricular function curves constructed by these non-invasive method are sensitive to assess left ventricular function.


Copyright © 1979, 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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