Thromb Haemost 2018; 118(04): 734-744
DOI: 10.1055/s-0038-1637733
Cellular Haemostasis and Platelets
Schattauer GmbH Stuttgart

Factors Involved in Maintaining Haemostasis in Patients with Myelodysplastic Syndrome

Ihosvany Fernández Bello
1   Hematology and Hemotherapy Unit, University Hospital La Paz, Madrid, Spain
2   Hospital La Paz Institute for Health Research (IdiPaz), Madrid, Spain
,
Víctor Jiménez-Yuste
1   Hematology and Hemotherapy Unit, University Hospital La Paz, Madrid, Spain
2   Hospital La Paz Institute for Health Research (IdiPaz), Madrid, Spain
3   Universidad Autónoma de Madrid, Madrid, Spain
,
Raquel de Paz
1   Hematology and Hemotherapy Unit, University Hospital La Paz, Madrid, Spain
2   Hospital La Paz Institute for Health Research (IdiPaz), Madrid, Spain
,
Mónica Martín Salces
1   Hematology and Hemotherapy Unit, University Hospital La Paz, Madrid, Spain
2   Hospital La Paz Institute for Health Research (IdiPaz), Madrid, Spain
,
Raul Justo Sanz
1   Hematology and Hemotherapy Unit, University Hospital La Paz, Madrid, Spain
2   Hospital La Paz Institute for Health Research (IdiPaz), Madrid, Spain
,
Elena Monzón Manzano
1   Hematology and Hemotherapy Unit, University Hospital La Paz, Madrid, Spain
2   Hospital La Paz Institute for Health Research (IdiPaz), Madrid, Spain
,
Elena G. Arias-Salgado
4   Advanced Medical Projects Madrid, Madrid, Spain
,
María Teresa Álvarez Román
1   Hematology and Hemotherapy Unit, University Hospital La Paz, Madrid, Spain
2   Hospital La Paz Institute for Health Research (IdiPaz), Madrid, Spain
,
María Isabel Rivas Pollmar
1   Hematology and Hemotherapy Unit, University Hospital La Paz, Madrid, Spain
2   Hospital La Paz Institute for Health Research (IdiPaz), Madrid, Spain
,
Isabel Goyanes
1   Hematology and Hemotherapy Unit, University Hospital La Paz, Madrid, Spain
,
Nora V. Butta
1   Hematology and Hemotherapy Unit, University Hospital La Paz, Madrid, Spain
2   Hospital La Paz Institute for Health Research (IdiPaz), Madrid, Spain
› Author Affiliations
Further Information

Publication History

10 August 2017

26 January 2018

Publication Date:
19 March 2018 (online)

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Abstract

Etiopathogenesis of myelodysplastic syndrome (MDS) might cause per se an anomalous haemostasis that can be even more deteriorated by thrombocytopaenia. So, evaluation of haemostasis in patients with MDS rises as a necessity.

This work aimed to characterize haemostasis in non-bleeder MDS patients with a platelet count similar to healthy controls to establish differences between the two groups not related to thrombocytopaenia.

Thromboelastometry in samples from MDS patients suggested the existence of at least two antagonistic processes: one of them giving a hypocoagulable pattern (prolonged clotting time and lower α angle) and another conferring a procoagulant profile (decreased fibrinolysis). Hypocoagulable state might be due to a decreased ability of platelets to be stimulated and to the presence in plasma of a factor/s that prolonged the time to initiate thrombin generation. This factor/s might be antibodies as this effect was observed in samples from MDS patients with an associated autoimmune-inflammatory condition.

Otherwise, hypercoagulable state seemed to rely on an increased presence of red cell- and monocyte-derived microparticles and to the increased exposure of phosphatidylserine that served as scaffold for binding of coagulation factors.

We concluded that haemostasis in MDS patients is a complex process influenced by more factors than platelet count.

Note

This work was supported by grants from the FIS-FONDOS FEDER (PI15/01457, N.V.B.). NVB holds a Miguel Servet II tenure track grant from FIS-FONDOS FEDER (CP14/00024).


Authors' Contribution

I.F.B., R.J.S., E.M.M. and E.G.A-S. performed the experiments. R.d.P., M.T.A.R., M.M.S., M.I.R.P. and V.J-Y. diagnosed and provided clinical care to MDS patients. I.G. collected and verified patient information. I.F.B., R.d.P., V.J-Y. and N.V.B. analysed the results. N.V.B. was the principal investigator, designed the experiments and wrote the manuscript. All authors approved the manuscript.