Abstract
BackgroundThe prognosis of unresectable hepatic colorectal metastases is poor even if chemotherapy is administered. The purpose of this study was to evaluate the long-term efficacy of hepatic arterial infusion (HAI) chemotherapy and hepatectomy following HAI for such condition. MethodsSeventy-two patients with unresectable hepatic colorectal metastases received continuous HAI of 5-fluorouracil. ResultsThe overall response rate was 38%. The median survival of all patients was 18 months. The overall 3-year survival rate was 18%. Seven patients (10%) survived more than 58 months. Of the eight patients with a complete response, seven developed liver and/or lung metastases, and of these, one patient undergoing additional hepatectomy has been disease-free and the other six receiving chemotherapy died of disease. Another complete-response case died of liver abscess. Of the 19 patients with a partial response, six could undergo hepatectomy after HAI. The overall 5-year survival rate of seven patients undergoing hepatectomy was 71%, whereas for patients without hepatectomy, the rate was 0%. ConclusionsMost patients showing response after HAI for unresectable hepatic colorectal metastases had relapses. The long-term prognosis of patients undergoing hepatectomy after HAI was favorable. Therefore, when HAI makes liver metastases resectable, they should be resected.
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