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Αλέξανδρος Γ. Σφακιανάκης

Sunday, January 10, 2021

Preoperative CA19-9: a competitive predictor of recurrence in patients with colorectal cancer liver metastases after hepatectomy

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Abstract

Purpose

The role of preoperative carbohydrate antigen 19-9 (CA19-9) in colorectal cancer liver metastases (CRLM) patients is still unclear. The present study aimed to explore the prognostic significance of preoperative CA19-9 in those patients.

Methods

A total of 691 CRLM patients were included in this study. X-tile analyses were performed to determine the optimal cut-off values of CA19-9 and carcinoembryonic antigen (CEA). Prognostic predictors were identified by multivariate analyses.

Results

The optimal cut-off values of CA19-9 and CEA for 5-year recurrence-free survival (RFS) were 35.24 U/ml and 20.4 ng/ml, respectively. Patients with high-level CA19-9 had significantly worse RFS and overall survival (OS) than those with low-level CA19-9 (P = 0.001 and P = 0.002, respectively). In addition, patients with high-level CA19-9 had poor RFS and OS (P = 0.028 and P = 0.011, respectively) at low-level CEA. Multivariate analyses confirmed that preoperative CA19-9 was an independent predictor for RFS (hazard ratio [HR] 1.295; 95% confidence interval [CI] 1.043–1.607; P = 0.019) but not for OS (HR 1.213; 95% CI 0.902–1.631; P = 0.201).

Conclusion

CA19-9 is a promising predictor of recurrence for CRLM patients undergoing hepatectomy, and an effective supplement for patients with low-level CEA.

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