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Low utilisation of unactivated protein C in a patient with meningococcal septic shock and disseminated intravascular coagulation
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences. (Friman)
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences. (Koagulation)
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences. (Friman)
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2003 (English)In: Acta Anaesthesiologica Scandinavica, ISSN 0001-5172, E-ISSN 1399-6576, Vol. 47, no 7, 897-900 p.Article in journal (Refereed) Published
Abstract [en]

BACKGROUND: Activated protein C has recently been shown in a multicentre trial to significantly reduce mortality in patients with septic shock. There are also some case reports and minor studies demonstrating promising results with the unactivated form of protein C. However, in children with severe meningococcal infection, skin biopsies have demonstrated low expression of endothelial thrombomodulin and protein C receptors, suggesting low protein C activation capacity in severe meningococcal sepsis.

METHODS: A patient with meningococcal septic shock was treated with two doses of the unactivated form of protein C, the first during intense activation of the coagulation system and the second during a phase of low grade or no activation. Repeated plasma samples were analysed for protein C concentration, which made it possible to compare pharmacokinetics and half-lives of the two administrations. A shorter half-life during intense coagulation was expected if there was an activation and consumption of the protein C administered.

RESULTS: The calculated half-lives of protein C during intense and low grade activation were 32 h and 19 h, respectively, a magnitude similar to that reported in protein C-deficient patients without infection.

CONCLUSION: The result indicates that whole body utilisation of the unactivated protein C was low. Endothelial impairment of protein C activation does not seem to be restricted to the skin vessels only.

Place, publisher, year, edition, pages
2003. Vol. 47, no 7, 897-900 p.
Keyword [en]
Adult, Anticoagulants/pharmacokinetics/*therapeutic use, Blood Coagulation Factors/drug effects, Disseminated Intravascular Coagulation/complications/*drug therapy, Female, Fibrin/drug effects, Half-Life, Humans, Meningococcal Infections/complications/*drug therapy, Protein C/pharmacokinetics/*therapeutic use, Shock; Septic/complications/*drug therapy
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Medical and Health Sciences
Identifiers
URN: urn:nbn:se:uu:diva-73099DOI: 10.1034/j.1399-6576.2003.00075.xPubMedID: 12859313OAI: oai:DiVA.org:uu-73099DiVA: diva2:101010
Available from: 2007-01-23 Created: 2007-01-23 Last updated: 2017-01-25Bibliographically approved

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Lignell, AndersSiegbahn, AgnetaStridsberg, MatsPauksen, KarlisGedeborg, RolfSjölin, Jan

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