2010
DOI: 10.1097/shk.0b013e3181df0253
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Liver Volume, as Assessed by Four Ultrasonic Crystals Arranged to Form a Tetrahedron, Decreases During Anaphylactic Shock in Anesthetized Rats

Abstract: We determined the hepatic volume change in anaphylactic hypotension by using four ultrasonic crystals in anesthetized rats. The hepatic volume was measured with four ultrasonic crystals arranged to form a tetrahedron on the liver surface. Before in vivo experiments, using isolated perfused rat liver preparations, we compared the measured liver volume changes with the whole-liver weight changes during hepatic blood flow rate changes and venoconstriction induced by norepinephrine. The measured relative change of… Show more

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Cited by 3 publications
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“…In canine anaphylactic shock, hepatic venoconstriction, especially selective constriction of the postsinusoidal hepatic veins, induces pooling of blood in the upstream splanchnic organs, as well as in the liver itself (5,6,20). Likewise, in rat anaphylactic hypotension, hepatic venoconstriction occurs, although the liver blood volume decreases rather than increasing (8,16,19). This anaphylactic hepatic venoconstriction plays a significant role in the genesis of blood pressure fall, based on the finding that the elimination of acute portal hypertension by means of surgical perturbations or portacaval shunting attenuates the antigen-induced systemic hypotension in anesthetized rats (10, 16).…”
mentioning
confidence: 99%
“…In canine anaphylactic shock, hepatic venoconstriction, especially selective constriction of the postsinusoidal hepatic veins, induces pooling of blood in the upstream splanchnic organs, as well as in the liver itself (5,6,20). Likewise, in rat anaphylactic hypotension, hepatic venoconstriction occurs, although the liver blood volume decreases rather than increasing (8,16,19). This anaphylactic hepatic venoconstriction plays a significant role in the genesis of blood pressure fall, based on the finding that the elimination of acute portal hypertension by means of surgical perturbations or portacaval shunting attenuates the antigen-induced systemic hypotension in anesthetized rats (10, 16).…”
mentioning
confidence: 99%