Hepatic arteriography in XXXX with @entity157 : change in findings caused by balloon occlusion of tumor-draining hepatic veins.

@entity1 @entity1575 @entity5 @entity432 @entity157
OBJECTIVE: A previous study suggested that temporary occlusion of a segment of the hepatic vein causes an increase in arterial flow and retrograde portal flow in the occluded segment. Such occlusions might improve the efficacy of arterial infusion therapy. Accordingly, we studied the change in blood flow visible on hepatic arteriograms when a segment of the hepatic vein is temporarily occluded in @entity1 with @entity157 . MATERIALS AND METHODS: The study group consisted of 24 @entity1 with nodular-type @entity157 . Conventional hepatic arteriography was followed by hepatic arteriography performed using a balloon catheter to occlude the hepatic vein that was most closely associated with the @entity5 . Visualization of the @entity5 -draining veins, portal vein branches, the degree of @entity5 vascularity, and the density of the hepatogram on the hepatic arteriogram were retrospectively compared before and during @entity432 . The veins were evaluated visually; an increase of @entity5 vascularity was defined as an increase in the number of countable @entity5 vessels during occlusion, and a dense hepatogram was considered to be a definite sinusoidgram induced by @entity432 . RESULTS: Conventional hepatic arteriography showed the @entity5 -draining veins to be branches of the portal vein in only two of the 24 @entity1 (8%). Hepatic arteriography during @entity432 , however, showed the @entity5 -draining veins to be branches of the portal vein in four of the @entity1 (17%). An increase in the degree of @entity5 vascularity with @entity432 was observed only in a @entity1 with an initial arteriohepatic vein shunt. Dense hepatogram and hepatofugal opacification of the portal vein branches in the occluded, @entity5 -bearing segment were obtained in 10 @entity1 (42%). Eight of these did not have @entity1575 , whereas all of the remaining 14 @entity1 did (p < .001). CONCLUSION: Our results suggest that occlusion of a segment of the hepatic vein may be useful during arterial infusion of @entity157 .
