Surgical resection of stage IV colorectal cancer and prognosis.

World Journal of Surgery
Hiroshi KatohMasahiko Watanabe


Colorectal cancer (CRC) harbors accumulated genetic alterations with cancer progression, which results in uncontrollable disease. To regulate the most malignant CRC, we have to know the most dismal phenotype of stage IV disease. A retrospective review of the Kitasato University Hospital was performed (from 1990 to 2001) to extract the 162 resected stage IV CRC. Clinical variables were tested for their relationship to survival in a multivariate prognostic analysis and revealed the interaction of the prognostic factors. In stage IV CRC with noncurable resection, the most robust univariate predictors for poor prognosis were preoperative high value of CA19-9, peritoneal dissemination, depth of invasion, age, extent of liver metastases, pathologic lymph node metastasis status, and gender as tumor factors, and postoperative therapy, perioperative transfusion, and lymph node dissection extent as treatment factors. Among these factors, postoperative therapy (p < 0.0001), perioperative transfusion (0.0002), CA19-9 (0.001), extent of liver metastases (0.004), and peritoneal dissemination (0.02) were identified as independent prognostic factors by multivariate analysis. Interestingly, among the independent prognostic factors, treatment fa...Continue Reading


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