Hemodynamics and Hepatic Energy Metabolism in Canine Model of Acute Hepatic Venous Occlusion with Mesocaval Shunt
作者:
M. Terasaki,
T. Kitai,
T. Morimoto,
K. Kumada,
H. Sasaki,
M. Nakano,
M. Sugano,
F. Nishizawa,
S. Mashima,
A. Mitsuyoshi,
M. Nakagami,
E. Takeuchi,
K. Ozawa,
期刊:
European Surgical Research
(Karger Available online 1994)
卷期:
Volume 26,
issue 1
页码: 19-27
ISSN:0014-312X
年代: 1994
DOI:10.1159/000129314
出版商: S. Karger AG
关键词: Arterial blood ketone body ratio;Portal vein pressure;Hepatic venous occlusion;Mesocaval shunt;Portal hemodynamics;Energy charge potential
数据来源: Karger
摘要:
The relationship between portal hemodynamics and the energy metabolism of the liver with acute hepatic venous occlusion (HVO) was investigated by assessing the changes in the hepatic blood flow, arterial blood ketone body ratio (AKBR) and adenylate energy charge potential (ECP) of the liver tissue in canine model. Acute HVO was induced by the ligation of both the supra- and infrahepatic inferior vena cava (IVC) over the protruding ends of a heparin-coated polyethylene cannula inserted into the IVC. All dogs with only HVO (n = 5) died within 30 min. HVO dogs with additional mesocaval (MC) shunt (n = 10) survived longer than 7 days, during which time their AKBR were maintained in the normal range (over 1.0). ECP was also maintained above the normal level (over 0.850) during the 28-day period. Along with increasing portal pressure caused by the narrowing of the shunt anastomosis, the hepatic blood flow decrease gradually, resulting in a sudden decrease in AKBR and ECP when the portal pressure increased over 11 mm Hg. It is suggested that the normalization of portal pressure is one of the most important factors for maintaining the hepatic energy metabolism and that MC shunt is an effective therapy for maintaining the function of the liver with HVO, as long as portal pressure can be kept within normal range.
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