Evidence map›Paper›PMID 21920014›Full record

ArticleJournal of thrombosis and haemostasis : JTH2011

Differences in platelet function in patients with acute myeloid leukemia and myelodysplasia compared to equally thrombocytopenic patients with immune thrombocytopenia.

B Psaila, J B Bussel, A L Frelinger, B Babula, M D Linden, Y Li, M R Barnard, C Tate, E J Feldman, A D Michelson

Open access · greenAbstract readComparative Study
In one paragraph

Article in Journal of thrombosis and haemostasis : JTH, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
4.6field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

28 citing papers in PubMed, 129 citations in OpenAlex.

  1. Trial
  2. Haemostasis alterations in immune thrombocytopenia and their clinical significance.Research and practice in thrombosis and haemostasis · 2025
    Article
  3. Review
  4. Article
  5. Observational
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  7. Review
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  12. Review
  13. Article
  14. Review
  15. Review
  16. Severe Intracranial Hemorrhage at Initial Presentation of Acute Myelogenous Leukemia.Clinical practice and cases in emergency medicine · 2018
    Article
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 4 institutions in 2 countries.

B PsailaPlatelet Disorders Center, Division of Pediatric Hematology-Oncology, Weill-Cornell Medical College, New York, NY, USA.
J B Bussel
A L Frelinger
B Babula
M D Linden
Y Li
M R Barnard
C Tate
E J Feldman
A D Michelson
Cornell University · USUniversity of Massachusetts Chan Medical School · USDana-Farber Cancer Institute · USImperial College London · GB

Funding

Novel Therapies in Hemostasis and Transfusion MedicineU01HL072196 · NHLBI · WEILL MEDICAL COLL OF CORNELL UNIV · PI BUSSEL, JAMES BRUCE · 2002 to 2012
$2.1M
NHLBI NIH HHS 1U01 HL72196-01-05NHLBI NIH HHS U01 HL072196
6 · The paper itself

Abstract

backgroundSevere thrombocytopenia is a major risk factor for hemorrhage, but platelet function and bleeding risk at low platelet counts are poorly understood, because of the limitations of platelet function testing at very low platelet counts.

objectivesTo examine and compare platelet function in severely thrombocytopenic patients with acute myeloid leukemia (AML) or myelodysplasia (MDS) with that in patients with immune thrombocytopenia (ITP).

methodsWhole blood flow cytometric measurement of platelet activation and platelet reactivity to agonists was correlated with the immature platelet fraction (IPF) and bleeding symptoms.

resultsPatients with AML/MDS had smaller platelets, lower IPF and substantially lower platelet surface expression of activated glycoprotein (GP)IIb-IIIa and GPIb, both with and without addition of ex vivo ADP or thrombin receptor-activating peptide, than patients with ITP. In both ITP and AML/MDS patients, increased platelet surface GPIb on circulating platelets and expression of activated GPIIb-IIIa and GPIb on ex vivo activated platelets correlated with a higher IPF. Whereas platelet reactivity was higher for AML/MDS patients with bleeding than for those with no bleeding, platelet reactivity was lower for ITP patients with bleeding than for those with no bleeding.

conclusionsAML/MDS patients have lower in vivo platelet activation and ex vivo platelet reactivity than patients with ITP. The proportion of newly produced platelets correlates with the expression of platelet surface markers of activation. These differences might contribute to differences in bleeding tendency between AML/MDS and ITP patients. This study is the first to define differences in platelet function between AML/MDS patients and ITP patients with equivalent degrees of thrombocytopenia.

Indexed as

AgedBlood PlateletsCell ShapeFemaleFlow CytometryHemorrhageHumansLeukemia, Myeloid, AcuteMaleMiddle AgedMyelodysplastic SyndromesPlatelet ActivationPlatelet Membrane GlycoproteinsPurpura, Thrombocytopenic, IdiopathicPlatelet Membrane Glycoproteins

Identifiers

PMID21920014
PMCPMC3210015
OpenAlexW1659560878

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.