Prognostic factors for hepatocellular carcinoma recurrence after liver transplantation or resection - single-center experience

Introduction: The aim of the study was to assess prognostic factors associated with an increased risk of recurrence of hepatocellular carcinoma (HCC) after radical treatment.

Materials and methods: This is a retrospective, single-center analysis of data on HCC recurrence in patients who underwent radical treatment. Molecular tumor characteristics, baseline laboratory results and hepatic viral status were analyzed.

Results: Data from 111 patients were included in the analysis. The most important prognostic factors for recurrence were vascular microinvasion (HR 4.54; 95 % CI 1.769-11.681; p 0.001), baseline white blood count (HR 2.13; 95 % CI 1.261-3.567; p 0.004) and baseline alpha-fetoprotein (HR 1.00009; 95 % CI 1.000001-1.00002; p 0.034). Microvascular invasion was only prognostic factor which correlate significantly with the overall survival (HR 5.04, 95 % CI 2.352-12.413; p < 0.001). PD-L1 expression was confirmed in 4 patients and all of them developed a disease recurrence. However, there was no statistically significant assosciation with prognosis. The presence of CD68 tumor-associated macrophages was confirmed in 62 patients, ranging from 5 % to 40 %. Analysis showed that CD68 was not associated with the risk of recurrence of HCC.

Conclusions: The results confirm that microvascular invasion is the most important factor associated with an increased risk of hepatocellular carcinoma recurrence and death, while PD-L1 and CD68 expression did not have an impact on patient prognosis.