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[Availability of intermittent chemotherapy by reservoir in liver metastasis of colo-rectal cancer].

From August 1986 to May 1989, in 18 cases of liver metastasis from colo-rectal cancer, intermittent chemotherapy was undergone by implantation reservoir in the subcutaneous. Intra-arterial infusion chemotherapy was under taken in 6 cases, and intra-portal vein chemotherapy in 12 cases. 5-FU 500 mg + MMC 10-6 mg was infused through implantable reservoir once every two weeks. CDDP and ADM were also infused in one case. Infusions averaged 12.4 times, and the most was 24 times in the group of intra-arterial infusion chemotherapy. In the group of intra-portal vein infusion chemotherapy, infusion averaged 12.4 times, with the highest at 35 times. In liver metastasis (H3), there is no significant difference between intra-arterial infusion chemotherapy and intra-portal vein infusion chemotherapy, revealing the cumulative survival rate. And the reservoir group compares with the 14 cases of hepatectomy and the 9 cases of systemic chemotherapy in cumulative survival rate. As a result, there was no significant difference between the group with the reservoir and the systemic chemotherapy group in H1 cases and H2 cases, revealing a median survival rate in these treatment groups. The median survival of reservoir group was 8.3 months, and that of the hepatectomy group was 20.6 months in H2 cases. In the H3 cases, the median survival of the reservoir group was 9.6 months, and that of the systemic chemotherapy group was 10.3 months. Reservoir was implanted in three cases to prevent recurrence after hepatectomy. As a result, two of three cases have survived for 20 months and 10 months, respectively.