Prognostic Impact of Platelet-Large Cell Ratio In Myelodysplastic Syndromes

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Abstract

Background: Myelodysplastic syndromes (MDSs) are a very heterogeneous group of myeloid disorders with high prevalence and risk of developing acute myeloid leukemia. The more accurate risk stratification can provide a better guidance of treatment. The platelet–large cell ratio (P-LCR) is a parameter reported in complete blood cell count tests, and was associated with many diseases, but its role in MDS is not clear. Purpose: This study aims to explore the impact of the P-LCR on the prognosis of patients with MDS, which is of great significance for clinical treatment. Methods: In the retrospective study, 122 newly diagnosed MDS patients were enrolled. We used the bioinformatics tool X-tile to define a P-LCR threshold of 36.7% to predict prognosis. Patients were divided into P-LCRlow and P-LCRhigh groups, and their characteristics were compared between the two groups. Results: Results show that the P-LCRlow was associated with worse overall survival (OS) than the P-LCRhigh patients (median OS, 18.53 months versus 25.77 months, p=0.0057), but there were no statistical differences in progression-free survival (PFS) between the two groups (p=0.2001). The results of univariate and multivariate Cox proportional hazard analyses adjusted for gender, bone marrow blast level, platelet count, and International Prognostic Scoring System scores showed that the P-LCR was useful in the evaluation of PFS [hazard ratio (HR) 0.212, 95%CI 0.064–0.702, p=0.011] and OS of MDS (HR 0.464, 95%CI 0.284–0.757, p=0.002). Conclusion: This study is the first report showing that the P-LCR would be a simple and immediately available biomarker for predicting the prognosis of MDS.

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Chen, Q., Chen, Y., Zhang, Y., Zhang, L., Chen, K., He, Z., … Yu, L. (2022). Prognostic Impact of Platelet-Large Cell Ratio In Myelodysplastic Syndromes. Frontiers in Oncology, 12. https://doi.org/10.3389/fonc.2022.846044

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