Evaluation of Parameters Related to the Probability of Leukemic Progression in Patients With Lower-Risk Myelodysplastic Syndrome
Related Experiment Video
Updated: Feb 10, 2026

Use of Hematopoietic Stem Cell Transplantation to Assess the Origin of Myelodysplastic Syndrome
Published on: October 3, 2018
Jose F Falantes1, Francisco J Márquez-Malaver1, Cristina Calderón-Cabrera1
1Department of Hematology, University Hospital Virgen del Rocío, Seville, Spain.
Background:
The prognosis of patients with lower-risk myelodysplastic syndrome (LR-MDS) is very heterogeneous. In addition to survival estimates, identification of factors related to the probability of leukemic progression might help prognosis assessment.
Patients And Methods:
The present study is a retrospective analysis of 409 patients with primary LR-MDS. The probability of leukemic progression was estimated in the competing risk framework by the cumulative incidence method considering death without acute myeloid leukemia (AML) as a competing event.
Results:
Sixty-six patients (16.1%) progressed to AML. The following covariates influenced the probability of leukemic progression in a multivariate competing risk regression model: intermediate karyotype versus diploid or chromosome 5 deletion, 5% to 9% bone marrow blast percentage, platelet count <50 × 10e9/L and age younger than 75 years.
Conclusion:
According to these, a predictive model is proposed, which categorizes patients with different probability of leukemic progression (P < .001). Validation of these results might help prognostic refinement of patients with LR-MDS.
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