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Outcome of prolonged acute vena cava occlusion after iatrogenic transection and repair in a dog.

A 12-year-old castrated male Airedale terrier dog was diagnosed with a hepatocellular carcinoma in the right medial liver lobe. During tumor resection, inadvertent stapling and transection of the caudal vena cava occurred. Complete caval occlusion was required for 18 minutes and primary anastomosis was completed. The dog received 2 blood transfusions and developed mild pelvic limb edema after surgery. Computed tomography evaluation 9 months after surgery showed collateral circulation and suspected stricture of the vena cava with an absence of clinical effect. The dog remained alive and asymptomatic more than 1 year after surgery.