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Hirudin--a potential stabilizing factor for platelet preservation in transfusion
G Pindur1, E Wenzel, M Koehler
1Department of Clinical Haemostaseology and Transfusion Medicine, University of the Saarland, Homburg/Saar, FRG.
Haemostasis
|January 1, 1991
Summary
Low-dose hirudin protects platelet function and reduces activation markers during platelet concentrate storage. This study found hirudin preserves platelet quality over five days without affecting coagulation or fibrinolysis.
Area of Science:
- Transfusion Medicine
- Hematology
- Biochemistry
Background:
- Platelet concentrates (PC) are crucial for treating bleeding disorders.
- Maintaining platelet function and viability during storage is a significant challenge.
- Current storage methods may lead to platelet activation and degradation.
Purpose of the Study:
- To investigate the effect of low-dose hirudin on platelet parameters during PC storage.
- To assess hirudin's impact on platelet activation markers and morphology.
- To evaluate hirudin's influence on coagulation and fibrinolysis systems in stored PCs.
Main Methods:
- Platelet concentrates were prepared using cytapheresis and citrate-dextrose solution A.
- Low-dose hirudin was added to study groups.
- Platelet factor 4, beta-thromboglobulin, platelet size, thrombin-antithrombin III complexes, and D-dimers were measured over a 5-day storage period.
Main Results:
- Hirudin significantly reduced the in vitro release of platelet factor 4 and beta-thromboglobulin.
- Morphological alterations in platelets were less pronounced with hirudin.
- No significant changes in thrombin-antithrombin III complexes or D-dimers indicated no activation of coagulation or fibrinolysis.
Conclusions:
- Low-dose hirudin demonstrates a protective effect on platelet function and morphology during PC storage.
- Hirudin may enhance the quality and viability of platelet concentrates.
- Hirudin does not appear to activate coagulation or fibrinolysis pathways in stored PCs.