PMID- 17944999 OWN - NLM STAT- MEDLINE DCOM- 20080228 LR - 20230829 IS - 1538-7933 (Print) IS - 1538-7836 (Linking) VI - 6 IP - 1 DP - 2008 Jan TI - Activation of coagulation with concurrent impairment of anticoagulant mechanisms correlates with a poor outcome in severe melioidosis. PG - 32-9 AB - BACKGROUND: Melioidosis, which is caused by infection with the Gram-negative bacterium Burkholderia pseudomallei, is an important cause of sepsis in South-East Asia with a mortality of up to 40%. Knowledge of the involvement of coagulation and fibrinolysis in the pathogenesis of melioidosis is highly limited. OBJECTIVE: To define the involvement of the coagulation and fibrinolytic systems in patients with severe melioidosis. METHODS: Parameters of coagulation and fibrinolysis were measured in 34 patients with culture proven septic melioidosis and 32 healthy controls. RESULTS: Patients demonstrated strong activation of the coagulation system, as reflected by high plasma levels of soluble tissue factor, the prothrombin fragment F(1+2) and thrombin-antithrombin complexes (TATc), and consumption of coagulation factors resulting in a prolonged prothrombin time and activated partial thromboplastin time. Concurrently, anticoagulant pathways were downregulated in patients: protein C, protein S, and antithrombin levels were all decreased when compared to controls. Patients also demonstrated evidence of activation and inhibition of fibrinolysis, as reflected by elevated concentrations of tissue-type plasminogen activator (tPA), plasminogen activator inhibitor type 1, plasmin-alpha2-antiplasmin complexes (PAPc) and D-dimer. High TATc/PAPc ratios in patients pointed to a predominance of the prothrombotic pathway in melioidosis. Furthermore, soluble thrombomodulin levels were increased. The extent of coagulation activation correlated with mortality; patients who went on to die had higher TATc, F(1+2), tPA and PAPc and lower protein C and antithrombin levels on admission than patients who survived. CONCLUSIONS: The coagulation system is strongly activated during melioidosis. A high degree of activation of the coagulation system is an indicator of poor outcome in patients with melioidosis. FAU - Wiersinga, W J AU - Wiersinga WJ AD - Center for Infection and Immunity Amsterdam (CINIMA), Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands. w.j.wiersinga@amc.uva.nl FAU - Meijers, J C M AU - Meijers JC FAU - Levi, M AU - Levi M FAU - Van 't Veer, C AU - Van 't Veer C FAU - Day, N P AU - Day NP FAU - Peacock, S J AU - Peacock SJ FAU - van der Poll, T AU - van der Poll T LA - eng GR - Wellcome Trust/United Kingdom PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20071012 PL - England TA - J Thromb Haemost JT - Journal of thrombosis and haemostasis : JTH JID - 101170508 RN - 0 (Biomarkers) SB - IM MH - Adolescent MH - Adult MH - Aged MH - Aged, 80 and over MH - Biomarkers/blood MH - *Blood Coagulation MH - Blood Coagulation Tests MH - Case-Control Studies MH - Female MH - *Fibrinolysis MH - Humans MH - Male MH - Melioidosis/*blood/*diagnosis/mortality MH - Middle Aged MH - Prognosis MH - Sepsis MH - Survival Rate MH - Treatment Outcome EDAT- 2007/10/20 09:00 MHDA- 2008/02/29 09:00 CRDT- 2007/10/20 09:00 PHST- 2007/10/20 09:00 [pubmed] PHST- 2008/02/29 09:00 [medline] PHST- 2007/10/20 09:00 [entrez] AID - S1538-7836(22)13175-2 [pii] AID - 10.1111/j.1538-7836.2007.02796.x [doi] PST - ppublish SO - J Thromb Haemost. 2008 Jan;6(1):32-9. doi: 10.1111/j.1538-7836.2007.02796.x. Epub 2007 Oct 12.