HEMODYNAMIC RESPONSES TO PROSTACYCLIN(PGI_2)IN THE CONSCIOUS SHEEP
スポンサーリンク
概要
- 論文の詳細を見る
Hemodynamic responses to prostacyclin (PGI_2) were studied in sheep in the conscious state as well as under pentobarbital-halothane anesthesia. PGI_2 in doses of 0.02-1.0 μg/kg were administered as a bolus into the right or left atrium in the conscious sheep. PGI_2 decreased systemic arterial pressure (P_<SA>), systemic (SVR) and pulmonary vascular resistance (PVR) and increased cardiac output (CO) and heart rate (HR) in a dose-dependent manner. The changes of each parameter were almost similar regardless of the sites of administration. Pulmonary arterial pressure (P_<PA>) was increased. There was no change in left (P_<LA>) or right atrial pressure (P_<RA>). A bolus administration of 0.5 μg/kg of PGI_2 in the anesthetized sheep produced a decrease in P_<SA>, SVR and PVR, and increase in CO and HR. P_<PA> remained unchanged when administered into the right atrium and increased slightly when administered into the left atrium. P_<LA> and P_<RA> did not change. Comparing hemodynamic responses to 0.5 g/kg of PGI_2 of the conscious and anesthetized states, decrease in P_<SA> was smaller and increases in CO and HR were greater in the former. Decreases in SVR and PVR were similar in both states. Increase in P_<PA> was greater in the conscious sheep. This data confirms that PGI_2 dilates the systemic as well as the pulmonary circulation of the sheep and an inactivation of this compound in the lungs is minimal. Furthermore, it may be suggested that general anesthesia significantly alters hemodynamic responses to PGI_2 in the sheep.
- 社団法人日本循環器学会の論文
- 1982-12-20
著者
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Kubo Keishi
The First Department of Internal Medicine, Shinshu University School of Medicine
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酒井 秋男
長野県八千穂中学校
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Kubo Keishi
The First Department Of Internal Medicine Shinshu University School Of Medicine
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KOBAYASHI Toshio
the First Department of Internal Medicine, Shinshu University School of Medicine
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Fukushima Masao
The 1 st. Dept of Med., Shinshu Univ. of Med
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酒井 秋男
信州大医学部環境生理学教室
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Kobayashi Toshio
The Department Of Internal Medicine
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Ueda Gou
Environmental Physiology Shinshu University School Of Medicine
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Ueda Gou
Research Center On Aging And Adaptation Shinshu University School Of Medicine
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Kusama Shozo
The Department Of Internal Medicine
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Kusama Shozo
The First Department Of Internal Medicine Shinshu University School Of Medicine
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YOSHIMURA KAZUHIKO
The Department of Internal Medicine
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Handa Kenjiro
Departments of Internal Medicine and Adaptation Physiology, Shishu University School of Medicine
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YOSHIMURA KAZUHIKO
The First Department of Internal Medicine, Shinshu University School of Medicine
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FUKUSHIMA MASAO
The First Department of Internal Medicine, Shinshu University School of Medicine
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HANDA KENJIRO
The First Department of Internal Medicine, Shinshu University School of Medicine
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SAKAI AKIO
The Adaptation Physiology, Shinshu University School of Medicine
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UEDA GOU
The Adaptation Physiology, Shinshu University School of Medicine
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Handa Kenjiro
Departments Of Internal Medicine And Adaptation Physiology Shishu University School Of Medicine
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Fukushima Masao
The 1 St. Dept Of Med. Shinshu Univ. Of Med
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Sakai A
Shinshu Univ. School Of Medicine
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Kubo Keishi
The First Department Of Internal Medicine Shinshu University
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Sakai Akio
Graduate School Of Medicine Research Center On Aging And Adaptation Shinshu University
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Kobayashi Toshio
The First Department Of Internal Medicine Shinshu University School Of Medicine
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