Abstract
Purpose
Serum γ-glutamyltranspeptidase (GGT) level, which is often elevated in hepatocellular carcinoma (HCC), has now been found to be an oxidative stress marker which correlates with inflammation in the extracellular hepatic microenvironment. The aim of this study was to investigate the prognostic significance of GGT serum levels in patients undergoing radiofrequency ablation (RFA) therapy for the treatment of HCC.
Methods
This retrospective study included 254 patients with small liver cancer (tumor of ≤5 cm in diameter and nodule of ≤3 cm) who had been treated with RFA. Baseline serum GGT was examined before therapy, and overall survival (OS) and recurrence-free survival were evaluated by the Kaplan–Meier method. Univariate and multivariate analyses were used to analyze the significance of GGT and other serum markers as prognostic factors.
Results
After a median follow-up of 27 months, 51 patients had died and 123 had hepatic recurrence. After treatment with RFA, HCC patients with elevated GGT had a shorter OS versus those with normal GGT level (p = 0.001); they also had higher recurrence (p = 0.001). On multivariate analysis, albumin (p = 0.003), GGT (p = 0.035), and tumor size (p = 0.027) were independent risk factors for survival, and GGT (p = 0.010) and tumor size (p = 0.026) were significant risk factors for recurrence.
Conclusions
Serum GGT is a convenient prognostic biomarker related to OS and recurrence in HCC patients undergoing RFA treatment.
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Acknowledgment
This study was supported by the National Clinical Key Special Subject of China (Grant 81172275) and the National Natural Science Foundation of China (Grant 21272565).
Conflicts of interest
Hui Ma, Lan Zhang, Bei Tang, Yan Wang, Rongxin Chen, Boheng Zhang, Yi Chen, Ningling Ge, Yanhong Wang, Yuhong Gan, Shenglong Ye, and Zhenggang Ren declare that they have no conflicts of interest.
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Hui Ma and Lan Zhang have contributed equally to this article.
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Ma, H., Zhang, L., Tang, B. et al. γ-Glutamyltranspeptidase is a Prognostic Marker of Survival and Recurrence in Radiofrequency-Ablation Treatment of Hepatocellular Carcinoma. Ann Surg Oncol 21, 3084–3089 (2014). https://doi.org/10.1245/s10434-014-3724-4
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DOI: https://doi.org/10.1245/s10434-014-3724-4