Document Detail

Coagulation disorders in patients with severe leptospirosis are associated with severe bleeding and mortality.
MedLine Citation:
PMID:  20002620     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To determine the involvement of coagulation in bleeding and poor outcome in patients with severe leptospirosis. METHODS: In a prospective study, parameters of the coagulation system were measured on admission and during follow-up in 52 consecutive patients with severe leptospirosis. RESULTS: All patients showed coagulation disorders, such as prolonged prothrombin time (PT) and activated partial thromboplastin time, marked procoagulant activity [thrombin-antithrombin (TAT) complexes, prothrombin fragment 1+2, D-dimer], reduced levels of anticoagulant markers (protein C, antithrombin) and increased (anti-) fibrinolytic activity [plasmin-antiplasmin (PAP) complexes, plasminogen activator inhibitor-1]. These disorders were more pronounced in patients who died eventually. PT prolongation was associated with mortality (OR 1.4, 95% CI: 1.0-1.8, P = 0.04). Bleeding occurred in 31 subjects (60%). Of these, 24 had mild bleeding and seven had severe haemorrhages. Thrombocytopenia (platelets </=100 x 10(9)/l) was significantly associated with clinical bleeding (OR 4.6, 95% CI: 1.3-16). A subanalysis of patients with and without severe bleeding revealed a more pronounced imbalance of the coagulation system in patients with severe bleeding, as reflected by a significant association with PT (OR 1.4, 95% CI: 1.0-1.8, P = 0.05) and the TAT/PAP ratio (OR 1.3, 95% CI: 1.0-1.6, P = 0.05), which is an indicator of the balance between coagulation and fibrinolysis. Overt disseminated intravascular coagulation (DIC) was found in 10 (22%) of the 46 patients for whom the score could be calculated. There was no significant association between DIC scores, bleeding diathesis or poor outcome. CONCLUSION: The coagulation system was strongly activated in patients with leptospirosis. This was more pronounced in the deceased and in patients with severe bleeding than in than the survivors and in those without severe bleeding.
J F P Wagenaar; M G A Goris; D L Partiningrum; B Isbandrio; R A Hartskeerl; D P M Brandjes; J C M Meijers; M H Gasem; E C M van Gorp
Publication Detail:
Type:  Journal Article     Date:  2009-12-09
Journal Detail:
Title:  Tropical medicine & international health : TM & IH     Volume:  15     ISSN:  1365-3156     ISO Abbreviation:  Trop. Med. Int. Health     Publication Date:  2010 Feb 
Date Detail:
Created Date:  2010-04-22     Completed Date:  2010-05-12     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9610576     Medline TA:  Trop Med Int Health     Country:  England    
Other Details:
Languages:  eng     Pagination:  152-9     Citation Subset:  IM    
Department of Internal Medicine, Slotervaart Hospital, Amsterdam, The Netherlands.
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MeSH Terms
Blood Coagulation
Blood Coagulation Disorders / parasitology*
Blood Coagulation Tests / methods
Disseminated Intravascular Coagulation / parasitology
Epidemiologic Methods
Leptospirosis / blood,  complications*,  diagnosis
Middle Aged
Partial Thromboplastin Time
Prothrombin Time

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