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Preoperative serum cholinesterase as a prognostic factor in patients with colorectal cancer
Kimihiko Nakamura1, Ryo Seishima1, Shimpei Matsui1
1Department of Surgery Keio University School of Medicine Tokyo Japan.
Aim:
Serum cholinesterase (ChE) levels are considered to reflect nutritional status. Although ChE has been well documented as a prognostic factor for some cancers, no clear consensus on its use for colorectal cancer (CRC) has been reached. The aim of this study was to investigate the relationship between preoperative serum ChE and postoperative long-term prognosis in CRC patients.
Methods:
A total of 1053 CRC patients who underwent curative surgery were included in this study. The correlations between the preoperative ChE value and overall survival (OS) or cancer-specific survival (CSS) were assessed. By dividing patients into two groups according to their ChE value, OS and CSS were compared between the groups.
Results:
Multivariate analysis revealed that the continuous ChE value was a significant predictor of OS (hazard ratio, 0.996; 95% CI, 0.993-0.998; p = 0.002) and CSS (hazard ratio, 0.994; 95% CI, 0.991-0.998; p = 0.001), independent of other variables. The low-ChE (≤234 U/L) group had a significantly poorer prognosis than the high-ChE (>234 U/L) group for both OS (5-year OS for low ChE and high ChE: 79.8% and 93.3%, respectively; p < 0.001) and CSS (5-year CSS for low ChE and high ChE: 84.8% and 95.6%, respectively; p < 0.001).
Conclusions:
Lower preoperative serum ChE levels are a predictive factor of poor prognosis for CRC patients. As serum ChE levels can be measured quickly and evaluated easily, ChE could become a useful marker for predicting the postoperative long-term outcomes of CRC patients.
