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Assessment of Hypercoagulability in Splanchnic Vein Thrombosis by Measurement of the Hemostasis Enzymes Thrombin and Activated Protein C.
Int J Mol Sci
December 2024
Institute of Experimental Hematology and Transfusion Medicine, University Hospital Bonn, 53127 Bonn, Germany.
Splanchnic vein thrombosis (SVT), which is particularly prevalent in myeloproliferative neoplasms (MPNs), has a multifactorial pathomechanism involving the anticoagulant protein C (PC) pathway. To better characterize the hypercoagulable state in SVT we assessed its key enzymes thrombin and activated PC (APC). The study population included 73 patients with SVT, thereof 36 MPN+, confirmed by bone marrow biopsy, 37 MPN-, and 30 healthy controls.
View Article and Find Full Text PDFMissing the mark(ers): circulating endothelial cells and endothelial-derived extracellular vesicles are elevated in sickle cell disease plasma.
Front Immunol
January 2025
Department of Medicine, Division of Hematology, Oncology and Transplantation, University of Minnesota, Minneapolis, MN, United States.
Sickle cell disease (SCD) is a devastating hemolytic disease, marked by recurring bouts of painful vaso-occlusion, leading to tissue damage from ischemia/reperfusion pathophysiology. Central to this process are oxidative stress, endothelial cell activation, inflammation, and vascular dysfunction. The endothelium exhibits a pro-inflammatory, pro-coagulant, and enhanced permeability phenotype.
View Article and Find Full Text PDFNavigating coagulopathy in obstetric hemorrhage: The role of point-of-care testing.
Best Pract Res Clin Anaesthesiol
September 2024
Department of Anaesthesia and Perioperative Medicine, Cardiff and Vale University Hospital, Cardiff, UK.
Postpartum hemorrhage (PPH) remains the leading cause of maternal mortality and morbidity worldwide. Recent advances in understanding the hemostatic changes of pregnancy and PPH have led to the development of obstetric-specific approaches to resuscitation. This article aims to examine.
View Article and Find Full Text PDFAltered thrombin generation with prothrombin complex concentrate is not detected by viscoelastic testing: an in vitro study.
Br J Anaesth
January 2025
Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, Vienna, Austria; Department of Anesthesiology and Intensive Care Medicine AUVA Trauma Center Salzburg, Academic Teaching Hospital of the Paracelsus Medical University, Salzburg, Austria.
Background: Bleeding guidelines currently recommend use of viscoelastic testing (VET) to direct haemostatic resuscitation in severe haemorrhage. However, VET-derived parameters of clot initiation, such as clotting time (CT) and activated clotting time (ACT), might not adequately reflect a clinically relevant interaction of procoagulant and anticoagulant activity, as revealed by thrombin generation assays. The aim of this study was to evaluate the ability of CT and ACT to indicate thrombin generation activity.
View Article and Find Full Text PDFHemophilia B Leyden: characteristics and natural history in the International Pediatric Network of Hemophilia Management Registry.
J Thromb Haemost
December 2024
Department of Clinical Sciences Lund, Lund University, Lund, Sweden; Department for Thrombosis and Hemostasis, Skåne University Hospital, Malmö, Sweden. Electronic address:
Background: A unique form of hemophilia B (HB) is HB Leyden. We evaluated the international Pediatric Network on Hemophilia Management Registry (PedNet) database to explore the natural history of HB Leyden, investigate genotype-phenotype associations, and guide clinical decision-making.
Objectives: To assess the association between genetic variants, endogenous factor (F)IX levels over time, treatment, and bleeding phenotype in children with HB Leyden.
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