Journal
JOURNAL OF SURGICAL ONCOLOGY
Volume 110, Issue 4, Pages 422-429Publisher
WILEY
DOI: 10.1002/jso.23666
Keywords
cholangiocarcinoma; CA19-9; predictive marker; surgical resection
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Background and Objectives Identification of prognostic markers is important to establish a perioperative therapeutic strategy for resectable cholangiocarcinoma (CC). The aim of this study was to investigate whether perioperative serum carbohydrate antigen 19-9 (CA19-9) levels can predict survival of patients who underwent surgical resection for CC. Methods The study included 106 patients who underwent surgical resection for CC. Serum CA19-9 levels were measured preoperatively after biliary drainage and postoperatively about 4 weeks after surgery. The association of clinicopathological factors (including perioperative serum CA19-9 levels) with overall survival (OS) was analyzed with univariate and multivariate analyses. Results Differences in OS were significant between groups divided on the basis of two preoperative CA19-9 cutoff values (in U/ml) of 37 and 200 and three postoperative CA19-9 cutoff values (in U/ml) of 37, 100, and 200. In multivariate analysis, absence of postoperative adjuvant chemotherapy (P=0.002), lymph node metastasis (P=0.0002), preoperative CA19-9 (200IU/ml) (P=0.03), and postoperative CA19-9 (37IU/ml) (P<0.0001) were identified as independent predictors of poor OS. Conclusion Both pre- and postoperative serum CA19-9 levels predict the survival of patients with resectable CC, and may contribute to the establishment of a new therapeutic strategy. J. Surg. Oncol. 2014; 110:422-429. (c) 2014 Wiley Periodicals, Inc.
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