Abstract
Subsegmentectomy using a flow dilated balloon catheter and microwave tissue coagulation was carried out in 14 cases with hepatocellular carcinoma. This procedure prevented postoperative liver dysfunction by maintaining blood flow in the residual liver and minimizing stripping of the hepato-duodenal ligament. Correct anatomical diagnosis of the tumor sites was achieved by means of US Angiography (in these cases, the injection of a CO2 bubble in to the portal vein through the catheter) during the operation.Additionally, prevention of intrahepatic metastasis via the portal vein can be anticipated because of the balloon catheter blockade of the regional portal branch. This procedure is easy to perform, it reduce intraoperative bleeding and thus blood transfusion, and addition of this procedure dose not extent the total time required for the operation.
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