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Acute effects of Prostaglandin I2 analogue (OP-41483, α-CD) on the disturbances of pulmonary circulation with right ventricular failure Yoshihiko Araki 1,2 , Yasunori Obata 2 , Sumio Hanamoto 1 , Mitsushige Koh 1 , Seiichi Kawabata 1 , Masateru Sawada 2 , Kentaro Kimura 1 1Intensive Respiratory Care Unit (IRCU), Osaka Prefectural Habikino Hospital 2The Third Department of Internal Medicine, Osaka Prefectural Habikino Hospital pp.179-183
Published Date 1988/2/15
DOI https://doi.org/10.11477/mf.1404205199
  • Abstract
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 We investigated the effects of continuous intravenous administration (20ng/kg/min) of Prostaglandin I2 stable analogue (OP-41483, -CD) on right ventricular failure in nine patients with acute exacerbation of chronic respiratory failure.

 OP-41483, α-CD significantly reduced mean right atrial pressure (12.6±5.2→10.9±5.7mmHg), pulmonary artery mean pressure (42.8±8.7→37.3±8.9mmHg) and total pulmonary vascular resistance (8.2±2.3→6.4±1.5 unit). Therefore the right ventricular preload an afterload were improved. But there was no significant change in cardiac output. In left ventricular function, pulmonary artery wedge pressure (25.8±11.3→17.2±10.0mmHg) and mean artery pressure (85.8±13.0→77.7±12.3mmHg) were reduced mildly, but total systemic vascular resistance was reduced significantly (16.6±4.2→13.4±4.4). Heart rate increased mildly.

 In view of oxygenation, Qs/Qt was increased significantly (18.3±13.4→27.9±9.2%) and PaO2, was decreased mildly (84.8±26.4→71.7±15.4 Torr). But, PVO2, was increased significantly (37.3±4.2→39.7±5.2 Torr).


Copyright © 1988, 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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