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Des-γ-carboxy Prothrombin in hepatocellular carcinoma post-operative recurrence risk evaluation
Xinting Pan1, Yang Zhou1, Zhenli Li1
1The United Innovation of Mengchao Hepatobiliary Technology Key Laboratory of Fujian Province, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou, China.
Background:
While the value of Des-γ-carboxy prothrombin in hepatocellular carcinoma diagnosis has been widely acknowledged, whether or how Des-γ-carboxy prothrombin could be used in recurrence evaluation remains largely unexplored.
Methods:
We performed a multicenter retrospective analysis including an Exploration Cohort (1074 patients, 5133 Des-γ-carboxy prothrombin measurements) and a Validation Cohort (263 patients, 612 Des-γ-carboxy prothrombin measurements) to investigate whether Des-γ-carboxy prothrombin could evaluate patients' prognosis. We introduced the Des-γ-carboxy prothrombin dynamic rate as a normalized quantitative measurement of Des-γ-carboxy prothrombin dynamic change. Des-γ-carboxy prothrombin dynamic rates were further applied in a high-risk liver cirrhosis patient cohort (PreCar Cohort, 542 liver cirrhosis patients, 2023 Des-γ-carboxy prothrombin measurements).
Results:
Here, we show a post-operative decrease of Des-γ-carboxy prothrombin in the Exploration Cohort, making the Des-γ-carboxy prothrombin threshold in diagnosis unsuitable for prognosis, while Des-γ-carboxy prothrombin dynamic rates significantly associate with recurrence risk. Categorizing patients based on Des-γ-carboxy prothrombin dynamic rates and final concentrations shows that patients negative for both exhibit the best median recurrence-free survival and patients positive for both show the worst median recurrence-free survival. Patients with consistently positive status have a significantly lower median recurrence-free survival compared to those whose status reverted to negative. These findings are validated in the Validation Cohort. Furthermore, the Des-γ-carboxy prothrombin dynamic rates in the PreCar Cohort can identify an additional 28% of cirrhosis patients progressing to hepatocellular carcinoma.
Conclusions:
These results expand on the clinical utilization of the hepatocellular carcinoma diagnosis biomarker, Des-γ-carboxy prothrombin, by proposing a quantification measurement of Des-γ-carboxy prothrombin dynamics to monitor hepatocellular carcinoma recurrence. This measurement is not limited in prognosis but can also improve the sensitivity of early hepatocellular carcinoma screening.
