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タイトル: The Effect of 7.2% Hypertonic Saline Solution with 6% Dextran 70 on Cardiac Contractility as Observed by an Echoocardiography in Normovolemic and Anesthetized Dogs
著者: SUZUKI, Kazuyuki
OTAKE, Masato
SAIDA, Yuuto
KOIE, Hiroshi
ASANO, Ryuji
発行日: Jan-2008
出版者: 日本獣医学会
抄録: We studied the effect of a small volume of 7.2% hypertonic saline solution (HSS) or HSS with 6% dextran 70 (HSD) on hemodynamic status, especially on cardiac contractility, in anesthetized dogs using the left ventricular end-systolic volume index (ESVI) and ejection fraction (EF), which can be obtained in noninvasive echocardiography. In the present study, the mean values of ESVI were unaffected by HSS and HSD infusion, whereas the left ventricular end-diastolic volume index (EDVI) was markedly and significant increased. As a result of the changes in EDVI but not in ESVI, EF increased transiently and significantly in the HSS and HSD group, whereas no such significant change was observed in the dogs that received isotonic saline solution. In addition, as a result of the increases in cardiac index but not arterial pressure, system vascular resistances (SVR) decreased transiently and significantly in the HSS and HSD groups, whereas no such significant change was observed in the ISS group. Therefore, the positive inotropic effects of HSS and HSD may be attributable to the increase in left ventricular preload and decreases in SVR rather than direct changes in myocardial contractility.
URI: http://hdl.handle.net/10659/1815
ISSN: 0916-7250


このアイテムの引用には次の識別子を使用してください: http://hdl.handle.net/10659/1815


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