Evidence map›Paper›PMID 41257206›Full record

ArticleResearch and practice in thrombosis and haemostasis2025

Comparison of light transmission aggregometry in patients with bleeding disorder of unknown cause and healthy blood donors.

Lena-Theresa Fanenbruck, Michael Metze, Maria Weise, Martin Federbusch, Roland Siegemund, Martin Reinhard Henschler, Annelie Siegemund, Sirak Petros, Christian Pfrepper

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Article in Research and practice in thrombosis and haemostasis, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

9 authors.

Lena-Theresa FanenbruckDivision of Hemostaseology, University of Leipzig Medical Center, Leipzig, Germany.
Michael MetzeDepartment of Cardiology, University of Leipzig Medical Center, Leipzig, Germany.
Maria WeiseDivision of Hemostaseology, University of Leipzig Medical Center, Leipzig, Germany.
Martin FederbuschInstitute of Laboratory Medicine, University of Leipzig Medical Center, Leipzig, Germany.
Roland SiegemundMedical Intensive Care Unit, University of Leipzig Medical Center, Leipzig, Germany.
Martin Reinhard HenschlerInstitute of Transfusion Medicine, University of Leipzig Medical Center, Leipzig, Germany.
Annelie SiegemundDivision of Hemostaseology, University of Leipzig Medical Center, Leipzig, Germany.
Sirak PetrosDivision of Hemostaseology, University of Leipzig Medical Center, Leipzig, Germany.
Christian PfrepperDivision of Hemostaseology, University of Leipzig Medical Center, Leipzig, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Light transmission aggregometry (LTA) plays an important role in the detection of platelet function disorders. Objectives: This study compared different agonist concentrations to detect patients with bleeding disorder of unknown cause (BDUC) with healthy blood donors. Methods: We retrospectively evaluated LTA performed in patients with BDUC and compared the results with prospectively collected LTA measurements from healthy blood donors. LTA was assessed with 2 μM, 5 μM, and 20 μM adenine diphosphate (ADP) in both groups; 1.0 mM arachidonic acid (AA) and 5 μM epinephrine in persons with BDUC; 1.0 mM and 1.5 mM AA and 5 μM and 10μM epinephrine in healthy blood donors. Results: After induction with 2 μM ADP, 43.8% of persons with BDUC and 24.3% of the healthy blood donors had abnormal maximum aggregation, but only 5.8% and 4.6% after induction with 5 μM ADP, respectively. Persons with BDUC had a higher proportion of abnormal maximum aggregation after induction with 1 mM AA (18.5%) compared to healthy donors (3.6%). No difference was observed after epinephrine induction. The sensitivity of an abnormal International Society on Thrombosis and Haemostasis Bleeding Assessment Tool score to predict an abnormal LTA was <22% and the negative predictive value >70%. Conclusion: This study reveals a high proportion of abnormal LTA results in persons with BDUC and healthy blood donors after induction with low concentrations of ADP and AA. The recommendations for those concentrations in guidelines for platelet function testing should be reassessed.

Indexed as

ADParachidonic acidbleeding of unknown causeblood donorlight transmission aggregometryplatelet function test

Identifiers

PMID41257206
PMCPMC12621560

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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 Socratic graph.