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Proposal of criteria to select candidates with colorectal liver metastases for hepatic resection:Comparison of our scoring system to the positive number of risk factors

查看全文 作　　者：Ikuo [1]Nagashima;Tadahiro [1]Takada;Miki [1]Adachi;Hirokazu [2]Nagawa;Tetsuichiro [2]Muto;Kota [1]Okinaga 高影响力作者 机构地区：[1]Department of Surgery, Teikyo University School of Medicine, Tokyo, Japan;[2]Department of Surgical Oncology, University of Tokyo Graduate School of Medicine, Tokyo, Japan高影响力机构 出　　处：《World Journal of Gastroenterology》索引2006年第12卷第39期,共5页高影响力期刊 摘　　要：AIM: To select accurately good candidates of hepatic resection for colorectal liver metastasis. METHODS: Thirteen clinicopathological features, which were recognized only before or during surgery, were selected retrospectively in 81 consecutive patients in one hospital (GroupⅠ). These features were entered into a multivariate analysis to determine independent and significant variables affecting long-term prognosis after hepatectomy. Using selected variables, we created a scoring formula to classify patients with colorectal liver metastases to select good candidates for hepatic resection. The usefulness of the new scoring system was examined in a series of 92 patients from another hospital (Group Ⅱ), comparing the number of selected variables. RESULTS: Among 81 patients of GroupⅠ, multivariate analysis, i.e. Cox regression analysis, showed that multiple tumors, the largest tumor greater than 5 cm in diameter, and resectable extrahepatic metastases were significant and independent prognostic factors for poor survival after hepatectomy (P < 0.05). In addition, these three factors: serosa invasion, local lymph node metastases of primary cancers, and post- operative disease free interval less than 1 year including synchronous hepatic metastasis, were not significant, however, they were selected by a stepwise method of Cox regression analysis (0.05 < P < 0.20). Using these six variables, we created a new scoring formula to classify patients with colorectal liver metastases. Finally, our new scoring system not only classified patients in GroupⅠvery well, but also that in Group Ⅱ, according to long-term outcomes after hepatic resection. The positive number of these six variables also classified them well.CONCLUSION: Both, our new scoring system and the positive number of significant prognostic factors are useful to classify patients with colorectal liver metastases in the preoperative selection of good candidates for hepatic resection. 关 键 词：结肠癌 直肠癌 肝移植 病理机制
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