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Japanese Journal of Clinical Oncology 30:7-11 (2000)
© 2000 Foundation for Promotion of Cancer Research

Resection of Synchronous Liver Metastases from Colorectal Cancer

Shin Fujita, Takayuki Akasu and Yoshihiro Moriya+

Department of Surgery, National Cancer Center Hospital, Tokyo, Japan

Background: The prognosis for patients with liver metastases from colorectal cancer is still poor. Thus, patient selection for hepatic resection is essential to improve the poor results of the procedure. Some reports have shown that the prognosis for patients with synchronous liver metastases is worse than that for those with metachronous liver metastases. Therefore, determination of the factors that influence outcome after resection of synchronous liver metastases is more important than with metachronous liver metastasis.

Method: We studied patients who had been followed for more than 5 years after undergoing resection of synchronous liver metastases from colorectal cancer.

Results: Among the 12 prognostic factors studied (age, gender, adjuvant chemotherapy, tumor site, CEA level, tumor differentiation, tumor size, regional lymph node metastatic status, distribution of liver metastases, number of liver metastases, tumor size and pathological margin), regional lymph node metastatic status and pathological margin were significant prognostic factors by univariate analysis (p = 0.0002 and 0.005, respectively). Regional lymph node metastatic status was a significant prognostic factor by multivariate analysis (p = 0.031). The survival curve of patients with six or more regional lymph node metastases was similar to that of patients with non-resectable liver metastasis.

Conclusion: The resection of synchronous liver metastases in patients with six or more regional lymph node metastases is relatively contraindicated. For these patients, other treatment modalities should be considered.

+ For reprints and all correspondence: Shin Fujita, Department of Surgery, National Cancer Center Hospital, 1–1 Tsukiji 5-chome, Chuo-ku, Tokyo 104-0045, Japan. E-mail: sfujita@gan2.ncc.go.jp


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