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Japanese Journal of Clinical Oncology Advance Access originally published online on October 10, 2007
Japanese Journal of Clinical Oncology 2007 37(11):836-842; doi:10.1093/jjco/hym113
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© 2007 Foundation for Promotion of Cancer Research

Liver Resection for Metastatic Gastric Cancer: Experience with 42 Patients Including Eight Long-term Survivors

Rintaro Koga, Junji Yamamoto, Shigekazu Ohyama, Akio Saiura, Makoto Seki, Yasuyuki Seto and Toshiharu Yamaguchi

Department of Gastrointenstinal Surgery, Cancer Institute Hospital, Tokyo, Japan

For reprints and all correspondence: Rintaro Koga, Department of Gastrointenstinal Surgery, Cancer Institute Hospital, 3-10-6 Ariake, Koto-ku, Tokyo 135-8550, Japan. E-mail: rintaro.koga{at}jfcr.or.jp

Received March 19, 2007; accepted July 8, 2007

Background: The indication for liver resection for gastric metastases remains controversial and few previous studies have reported the outcome of surgery in the treatment of liver metastases of gastric cancer. The aim of this study is to clarify the effectiveness of surgical resection for liver metastases arising from gastric cancer.

Methods: A retrospective analysis was performed on the outcome of 42 consecutive patients with synchronous (n = 20) or metachronous (n = 22) gastric liver metastases that were curatively resected.

Results: The overall 1, 3 and 5 year survival rates after hepatic resection were 76, 48 and 42%, respectively, and the median survival was 34 months. Univariate analysis revealed that survival significantly differed between cases of solitary and multiple metastases (P = 0.03). Multivariate analysis revealed that solitary liver metastasis and the absence of serosal invasion by primary gastric cancer were favorable independent prognostic factors (P = 0.005 and P = 0.02, respectively). All eight patients who survived for more than 5 years after initial hepatectomy had a solitary metastasis, and six of these had no serosal invasion by the primary gastric cancer. No patient with multiple metastatic diseases survived beyond 3 years.

Conclusions: Patients with a solitary liver metastasis are good candidates for surgical resection, whereas those with multiple gastric liver metastases should be treated by multimodal approaches.

Key Words: gastric cancer • liver metastases • hepatectomy • prognostic factor


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