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Prediction of Unresectability and Prognosis in Patients Undergoing Surgery on Suspicion of Pancreatic Cancer Using Carbohydrate Antigen 19-9, Interleukin 6, and YKL-40

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OBJECTIVES: The aim was to determine whether serum levels of carbohydrate antigen (CA) 19-9, interleukin 6 (IL-6), and YKL-40 could identify advanced disease and poor prognosis in pancreatic cancer (PC) patients intraoperatively diagnosed with locally advanced or metastatic disease.

METHODS: Two hundred ninety patients were included with preoperative blood samples. Plasma IL-6 and YKL-40 were determined by enzyme-linked immunosorbent assays.

RESULTS: Interleukin 6 was elevated in patients with unresectable PC compared with resectable PC (P = 0.03). Carbohydrate antigen 19-9 and YKL-40 were similar. Patients with resectable tumors and greater than median preoperative CA 19-9, IL-6, and YKL-40 had shorter overall survival than patients with low levels (CA 19-9: hazard ratio [HR], 1.79; 95% confidence interval [CI], 1.13-2.83; P = 0.01; IL-6: HR, 1.83; 95% CI, 1.20-2.78; P = 0.01; YKL-40: HR, 1.60; 95% CI, 1.02-2.49; P = 0.04). Patients with resectable tumors and 2 or 3 high biomarker levels had significantly reduced overall survival compared with patients with low levels (2 high: HR, 2.97; 95% CI, 1.44-6.10; P = 0.00; 3 high: HR, 3.10; 95% CI, 1.45-6.65; P = 0.00).

CONCLUSIONS: Preoperative levels of CA 19-9, IL-6, and YKL-40 may be useful to identify a subgroup of PC patients with poor prognosis.

Original languageEnglish
JournalPancreas
Volume49
Issue number1
Pages (from-to)53-61
Number of pages9
ISSN0885-3177
DOIs
Publication statusPublished - Jan 2020

ID: 58996251