Impact of Thrombocytopenia on Survival in Patients with Hepatocellular Carcinoma: Updated Meta-Analysis and Systematic Review

Author:

Kraj Leszek12,Chmiel Paulina3ORCID,Gryziak Maciej1,Grabowska-Derlatka Laretta4,Szymański Łukasz2ORCID,Wysokińska Ewa5

Affiliation:

1. Department of Oncology, University Clinical Centre, Medical University of Warsaw, 02-091 Warsaw, Poland

2. Department of Molecular Biology, Institute of Genetics and Animal Biotechnology, Polish Academy of Science, 01-447 Magdalenka, Poland

3. University Clinical Centre, Medical University of Warsaw, 02-091 Warsaw, Poland

4. 2nd Department of Clinical Radiology, University Clinical Centre, Medical University of Warsaw, 02-091 Warsaw, Poland

5. Division of Hematology and Medical Oncology, Mayo Clinic, Jacksonville, FL 32224, USA

Abstract

Background: Platelets (PLT) have a role in the pathogenesis, progression, and prognosis of hepatocellular carcinoma (HCC) and could represent a readily measurable laboratory parameter to enhance the comprehensive evaluation of HCC patients. Methods: The PubMed, Web of Science, and Scopus databases were searched with a focus on survival as well as patient and tumor-specific characteristics in correlation to reported PLT counts. Survival outcomes were analyzed with both common-effect and random-effects models. The hazard ratio (HR) and its 95% confidence interval (CI) from analyzed trials were incorporated. Studies that did not provide survival data but focused on platelet count correlation with HCC characteristics were reviewed. Results: In total, 26 studies, including a total of 9403 patients, met our criteria. The results showed that thrombocytopenia in HCC patients was associated with poor overall survival (common-effect HR = 1.15, 95% CI: 1.06–1.25; random-effect HR = 1.30, 95% CI: 1.05–1.63). Moreover, three studies reveal significant correlations between PLT indices and tumor characteristics such as size, foci number, and etiology of HCC development. Conclusion: Our meta-analysis confirmed that PLT count could act as a prognostic marker in HCC, especially with a PLT count cut off <100 × 103/mm3. Further prospective studies focusing on the role of PLT in clearly defined subgroups are necessary.

Publisher

MDPI AG

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