KMID : 0356720100260010039
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Journal of the Korean Society of Coloproctology 2010 Volume.26 No. 1 p.39 ~ p.44
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Pretreatment Serum CEA as a Prognostic Factor for Rectal Cancer Treated with Preoperative Chemoradiotherapy
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Kim Kyu-Hyung
Kim Dae-Yong Chang Hee-Jin Choi Hyo-Seong Park Ji-Won Oh Jae-Hwan Park Sung-Chan Baek Ji-Yeon Kim Sun-Young
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Abstract
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Purpose: Preoperative serum carcinoembryonic antigen (s-CEA) is well known to be a prognostic factor in patients with colorectal cancer. However, the prognostic effect of s-CEA in patients with rectal cancer treated with preoperative chemoradiotherapy (CRT) has not been well studied. The aim of this study is to evaluate the prognostic value of pretreatment s-CEA for rectal cancer treated with preoperative CRT.
Methods: Preoperative serum carcinoembryonic antigen (s-CEA) is well known to be a prognostic factor in patients with colorectal cancer. However, the prognostic effect of s-CEA in patients with rectal cancer treated with preoperative chemoradiotherapy (CRT) has not been well studied. The aim of this study is to evaluate the prognostic value of pretreatment s-CEA for rectal cancer treated with preoperative CRT.
Results: The three-year disease-free survival rates of the CEA ¡Â10 ng/mL group and the CEA >10 ng/mL group were 80.4% and 67.3%, respectively (P=0.002). Multivariate analysis revealed the following independent risk factor for recurrence: pretreatment CEA >10 ng/mL (hazard ratio [HR] 1.616; 95% confidence interval [CI], 1.007 to 2.594; P=0.047), positive lymph node status (HR, 2.580; 95% CI, 1.625 to 4.094; P<0.001), and positive circumferential resection margin (HR, 1.889; 95% CI, 1.035 to 3.446; P=0.038).
Conclusions: Pretreatment s-CEA (cutoff value 10 ng/mL) may be a prognostic factor for disease-free survival in rectal cancer patients treated with preoperative CRT and surgery.
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KEYWORD
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Rectal cancer, CEA, Chemoradiotherapy
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