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  • Title: [Effect of lipiodol emulsion and local hyperthermia on hepatic tissue blood flow in rabbits with VX-2 liver tumor].
    Author: Suzuki K, Tada I, Okada K, Kim YI, Kobayashi M.
    Journal: Gan To Kagaku Ryoho; 1988 Aug; 15(8 Pt 2):2491-6. PubMed ID: 2843112.
    Abstract:
    The effect of intra-arterial infusion of lipiodol-emulsion and local hyperthermia on tissue blood flow was examined in experimental hepatic tumor and normal liver of rabbits. VX-2 tumor was implanted in liver of rabbit. The tissue blood flow was estimated by hydrogen gas clearance method when the tumor grew to about 2 cm. Tissue blood flow in tumor (64.5 ml/min/100 g) was significantly less than in normal liver (90.8 ml/min/100 g) (p less than 0.005). The intra-arterial infusion of lipiodol-emulsion did not alter the flow in either tissue. However, the addition of hyperthermia induced a substantial rise of tissue blood flow in normal liver (35% increase, from 93.8 to 127 ml/min/100 g) when compared with in VX-2 tumor (8.9% increase, from 65.1 to 71.8 ml/min/100 g). These were accompanied by a selective heating of liver tumor; the tumor temperature rose to 43 degrees C, although that of normal liver remained at 38 degrees C. Our results suggested that a specific temperature rise of liver tumor after infusion of lipiodol-emulsion and local heating might be related to a different response of microcirculation in tumor and normal liver to the hyperthermia.
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