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Japanese Heart Journal
Vol. 45 (2004) No. 6 P 1063-1069

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http://doi.org/10.1536/jhj.45.1063

Case Reports

Embryogenesis of the inferior vena cava (IVC) is a complex process involving the formation and regression of several anastomoses, thus, various anomalies may occur. We report a case of deep venous thrombosis (DVT) accompanied by a double inferior vena cava (DIVC). A 76-year-old-man was admitted because of right leg edema and pain. Venography revealed two IVC and massive venous thrombus. To avoid massive pulmonary embolism (PE), it was necessary to block both the right and the left IVC. However, the right IVC was too small to implant the filter, so we placed a temporary IVC filter (Antheor filter) in the suprarenal portion of the IVC, after the confluence of the two IVC, and started thrombolytic and anticoagulant therapy. Venography, performed 6 days after filter implantation, showed a considerable amount of remaining thrombus. We replaced the Antheor filter with a Günther retrievable filter because the former has a catheter and is not suited for long-term use, whereas the latter can be used permanently. Two weeks after filter exchange, thrombus had decreased but remained. We therefore did not remove the Günther filter. The patient's symptoms gradually improved in response to anticoagulant therapy, and he was discharged with no complications. The present case illustrates the importance of a correct understanding of anatomy and demonstrates the effectiveness of using a suprarenal IVC filter in DVT.

Copyright © 2004 by the Japanese Heart Journal

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