Original Article
Clinical analysis in a cohort of 102 patients with myelodysplastic syndrome characterized by erythroid hyperplasia
Yan Yu, Aining Sun, Suning Chen, Qinrong Wang, Tongtong Zhang, Depei Wu
Published 2017-01-01
Cite as Chin J Intern Med, 2017, 56(1): 29-33. DOI: 10.3760/cma.j.issn.0578-1426.2017.01.008
Abstract
ObjectiveTo investigate the clinical and laboratorial characteristics of patients with myelodysplastic syndrome (MDS) and erythroid hyperplasia.
MethodsMDS patients whose bone marrow was hypercellular with erythroid lineage more than 50% and blasts account for less than 20% of non-erythroid cells were enrolled in this study. The ratio of mature erythrocytes to nucleated erythrocytes was no more than 20, namely MDS patients with erythroid hyperplasia(MDS-E). The retrospective analysis comprised 102 patients with MDS-E from the First Affiliated Hospital of Suzhou University. Clinical characteristics, karyotype, and the prognostic significance of erythroid hyperplasia were evaluated.
ResultsA total of 48 MDS-E patients (47.1%) presented a variety of cytogenetic abnormalities. The most frequently involved chromosomes were chromosome 8 (39.5% of all abnormal karyotypes), chromosome 7 (22.9%), followed by chromosome 5 (18.8%), chromosome 1 (16.7%) and chromosome 20 (16.7%). Hemoglobin (Hb) level affected the prognosis by survival analysis. The overall survival (OS) of MDS-E patients with Hb equal or more than 70 g/L was longer than that of patients less than 70 g/L (P<0.001). Allogeneic hematopoietic stem cell transplantation (HSCT) significantly improved the OS compared with best supportive care (P<0.001) and chemotherapy (P<0.001). The extent of erythroid hyperplasia in bone marrow did not impact on prognosis (P=0.187).
ConclusionsCompared with previous reports of MDS patients, MDS-E patients have higher level of erythroid hyperplasia, more common erythroid dyshematopoiesis, more frequent 8 and 1 chromosome abnormalities. The degree of erythroid hyperplasia is not correlated with prognosis. Allogeneic hematopoietic stem cell transplantation improves the prognosis.
Key words:
Myelodysplastic syndrome; Hyperplasia of erythroid lineage; Karyotyping; Prognosis
Contributor Information
Yan Yu
Jiangsu Institute of Hematology, Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, Collaborative Innovation Center of Hematology, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
Aining Sun
Suning Chen
Qinrong Wang
Tongtong Zhang
Depei Wu