Open AccessEarly platelet elevation after complete remission as a prognostic marker of favourable outcomes in favourable‐ and intermediate‐risk acute myeloid leukaemia: A retrospective study
Author(s) -
Wen Xiaoling,
Li Ruoqi,
Zhang Xialin,
Zhai Jiahong,
Yang Suxia,
Wang Yaozi,
Tan Yanhong,
Xu Zhifang,
Yang Linhua,
Zhang Ruijuan
Publication year - 2022
Publication title -
journal of clinical laboratory analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.536
H-Index - 50
eISSN - 1098-2825
pISSN - 0887-8013
DOI - 10.1002/jcla.24221
Subject(s) - medicine , myeloid leukaemia , retrospective cohort study , elevation (ballistics) , myeloid , oncology , pediatrics , mathematics , geometry
Objectives Platelet (PLT) recovery after chemotherapy is associated with the prognosis of patients with acute myeloid leukaemia (AML). This study aimed to explore the prognostic significance of early high PLT values in patients with de novo non‐M3 AML who achieved first complete remission (CR). Methods A total of 206 patients with de novo non‐M3 AML were analysed in this retrospective study. A receiver operating characteristic (ROC) curve was used to determine the optimal PLT cut‐off. The overall survival (OS) and relapse‐free survival (RFS) were assessed using Kaplan‐Meier and Cox regression analyses. Results 312×10 9 /L was confined as the cut‐off of the PLT count. The estimated 3‐year OS of patients with high PLT was higher than that of their counterparts (72.3% vs. 34.6%, p = 0.001). In subgroup analysis, patients with high PLT had better OS in the favourable‐ and intermediate‐risk (non‐adverse‐risk) AML ( p = 0.001). The estimated 3‐year RFS for the high and low PLT groups was 75.1% and 45.7% respectively ( p = 0.078). Multivariate analyses revealed that high PLT count was an independent favourable variable for OS (HR = 0.264, p < 0.001) and RFS (HR = 0.375, p = 0.011) in the non‐adverse‐risk group. Conclusion Our results showed that early high PLT count recovery at first CR in non‐adverse‐risk AML patients is a positive prognostic marker for survival outcomes.