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Simple models based on gamma-glutamyl transpeptidase and platelets for predicting survival in hepatitis B-associated hepatocellular carcinoma

Authors Pang Q, Bi J, Wang Z, Xu X, Qu K, Miao R, Chen W, Zhou Y, Liu C

Received 28 November 2015

Accepted for publication 22 February 2016

Published 12 April 2016 Volume 2016:9 Pages 2099—2109


Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Dr Jia Fan

Peer reviewer comments 4

Editor who approved publication: Professor Jianmin Xu

Qing Pang, Jian-Bin Bi, Zhi-Xin Wang, Xin-Sen Xu, Kai Qu, Run-Chen Miao, Wei Chen, Yan-Yan Zhou, Chang Liu

Department of Hepatobiliary Surgery, the First Affiliated Hospital of Medical College, Xi’an Jiaotong University, Shaanxi Province, People’s Republic of China

Background: Several hepatic cirrhosis-derived noninvasive models have been developed to predict the incidence and outcomes of hepatocellular carcinoma (HCC). We aimed to investigate the prognostic significance of the two novel established cirrhosis-associated models based on gamma-glutamyl transpeptidase (GGT) and platelets in hepatitis B-associated HCC.
Methods: We retrospectively evaluated 182 HCC patients with positive hepatitis B surface antigen who received radical therapy at a single institution between 2002 and 2012. Laboratory data prior to operation were collected to calculate the GGT to platelets ratio (GPR) and the S-index. Predictive factors associated with overall survival and recurrence-free survival were assessed using log-rank test and multivariate Cox analysis. Additional analyses were performed after patients were stratified based on cirrhosis status, tumor size, therapy methods, and so forth, to investigate the prognostic significance in different subgroups.
Results: During a median follow-up time of 45.0 months, a total of 88 (48.4%) patients died and 79 (43.4%) patients recurred. The cut-off points for GPR and S-index in predicting death were determined to be 0.76 and 0.56, respectively. Compared with patients with a lower GPR, those with GPR ≥0.76 had a higher probability of cirrhosis and a larger tumor (both P<0.05). GPR and S-index were both found to be significantly associated with survival by univariate log-rank test. Multivariate analysis identified tumor size ≥5 and high level of GPR, but not high Barcelona Clinic Liver Cancer stage or S-index, as independent factors for predicting poor overall survival and recurrence-free survival.
Conclusion: The GPR is an effective preoperative predictor for outcomes in hepatitis B-associated HCC.

Keywords: hepatocellular carcinoma, cirrhosis, hepatitis B virus, GPRs, platelets, gamma-glutamyl transpeptidase, survival

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