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Effects of PGI2 analogue (CS-570) in patients with acute myocardial infarction: dose response effects on cardiovascular hemodynamics, Plasma prostanoids, catecholamines and cyclic nucleotides Yoshihiko Seino 1 , Piboon Laohathai 1 , Shinichiro Shimai 1 , Kazuko Takada 1 , Yoshinori Kobayashi 1 , Takayuki Takita 1 , Takashi Tanaka 1 , Yuzuru Matsuyama 1 , Keiji Tanaka 1 , Takao Katoh 1 , Teruo Takano 1 , Hirokazu Hayakawa 2 , Hidemasa Okumura 2 1Division of CCU & ICU, Nippon Medical School 2The First Department of Medicine, Nippon Medical School pp.325-330
Published Date 1987/3/15
DOI https://doi.org/10.11477/mf.1404205029
  • Abstract
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 Dose response effects of recently developed PGI2 analogue (CS-570, continuous iv. infusion 100, 150, 200ng/kg/min) on cardiac hemodynamics, blood gas and peripheral blood prostanoids (TXB2, 6-keto-PGF), NE, E and cyclic AMP & GMP levels were investigated and correlated with serum drug concentration (SDC) in ten patients with pump failure due to acute myocardial infarction.

 Although first dose of 100ng/kg/min (SDC 13.7±6.6ng/ml) showed no significant hemodynamic effects, increases in doses of 150 and 200ng/kg/min (SDC 22.0±6.9, 34.4±13.2ng/ml, respectively) showed significant decrease in PCWP (24.6±6.7→21.1±6.6*, 21.4±6.5*mmHg. respectively), BPs*, BPm*, PAs*, PAd*, SVR*, PVR*, and significant increase in CI (2.4±0.7→2.8±0.8*, 2.7±0.7*l/min/m2, respectively) and SVI*. There was no significant change in HR, CVP, SWI, double product or TMG. None of NE, E, cyclic AMP & GMP and 6-keto-PGF, showed significant changes compared to basal levels, however TXB2 elevated significantly at 200ng/kg/min infusion (327.5±103.6→385.1±152.4, 576.9±384.1, 534.1±324.3*pg/ml), and PaO2** and SaO2* lowered significantly at 150 and 200ng/kg/min infusion. Among the study patients, SDC significantly correlated with ΔPVR (r=-0.46*) and ΔPaO2 (r=-0.39*), but there was no significant correlation with ΔCI, 4PCWP, JSVR nor. ΔTXB2.

 These results suggested the clinical beneficial effect of CS-570 for the treatment of complicated acute myocardial infarction in terms of one of the balanced vasodilators, and possible influence on the prostanoids imbalance relating to the pathophysiology in the early stage of acute myocardial infarction. (mean±SD, *p< 0.05, **p<0,01)


Copyright © 1987, 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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