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Clinical signifcance of right atrial pressure in acute phase of myocardial infarction Munetoshi Matoba 1 , Eiji Murakami 1 , Yuzuru Takekoshi 1 , shinobu Matsui 1 , Jiro Emoto 1 1Dept. of Internal Medicine, Kanazawa Medical University pp.937-941
Published Date 1984/9/15
DOI https://doi.org/10.11477/mf.1404204513
  • Abstract
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To investigate the clinical significance of right atrial pressure (RAP) in acute phase of myocardial infarction, resting hemodynamics using Swan-Ganz triple lumen catheter was measured in 81 patients with acute myocardial infarction (anterior infarc-tion : 39 patients, inferior infarction : 26, antero-inferior infarction : 16). Thereafter, low molecular dextran or furosemide were adminstered in 55 of 81 patients and right ventricular stroke work index (RVSWI)-RAP (=right ventricular function curve), cardiac index (CI)-RAP and pulmonary arterial end-diastolic pressureg (PAEDP)-R AP rela-tionships were examined. In patients of inferior infarction with RAP higher than 140-150 mmH2O and patients of antero-inferior infarction with RAP higher then 140 mmH2O RVSWI was decreased markedly. In inferior infarction, right ventricular function curves were shifted to right and lower position when the RAP exceeded 140 mmH2O, CI was decreased accompanied with an increase in RAP higher than 140 mmH2O and PAEDP did not elevate beyond 18 mmHg in spite of the eleva-tion of RAP. These results indicate that patients of inferior infarction with RAP higher than 140-150 mmH2O and patients of antero-posterior infarction with RAP higher than 140 mmH2O show the depressed right ventricular function and critical range of RAP is 140-150 mmH2O in patients of inferior infarction.


Copyright © 1984, 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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