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  • Title: Preoperative CA 19-9 level is an important prognostic factor in patients with pancreatic adenocarcinoma treated with surgical resection and adjuvant concurrent chemoradiotherapy.
    Author: Hallemeier CL, Botros M, Corsini MM, Haddock MG, Gunderson LL, Miller RC.
    Journal: Am J Clin Oncol; 2011 Dec; 34(6):567-72. PubMed ID: 21150564.
    Abstract:
    OBJECTIVES: To evaluate preoperative CA 19-9 level as a prognostic factor in patients with resected adenocarcinoma of the pancreas. METHODS: We retrospectively reviewed the cases of consecutive patients with pancreatic adenocarcinoma who had CA 19-9 measured preoperatively and underwent potentially curative resection at Mayo Clinic from September 1995 to January 2005. Patients who died within 30 days of resection were excluded. RESULTS: Search of our database identified 226 consecutive patients who met all the inclusion criteria. Adjuvant therapy was concurrent chemoradiotherapy (CCRT) in 122 patients, CCRT followed by chemotherapy in 23 patients, chemotherapy alone in 6 patients, and none in 69 patients. Median follow-up for surviving patients was 2.1 years. Median survival in all patients was 1.6 years. Patients with a high preoperative CA 19-9 level (defined as ≥180 U/mL) had a greater chance of having pathologic T3-T4 disease (P=0.03), positive lymph nodes (P=0.01), and histologic grade 3 or 4 (P=0.02). In multivariate analysis, a high preoperative CA 19-9 level (P=0.006) and R1-R2 margin status (P=0.03) were associated with decreased survival. Overall survival was increased for patients who received adjuvant CCRT (vs. those who did not; P=0.002) and for patients with high preoperative CA 19-9 level who received adjuvant CCRT (vs. those who did not; P<0.001). CONCLUSIONS: In patients with resected adenocarcinoma of the pancreas, high preoperative CA 19-9 level was associated with adverse pathologic features and poorer survival. Adjuvant CCRT was associated with a significant survival benefit in patients with high preoperative CA 19-9 but not in those with low CA 19-9.
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