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Thrombocytopenia in dengue fever
Katherine I Schexneider1, Edward A Reedy
1Medical Corps, US Navy, Department of Laboratory Medicine, Georgetown University Hospital, 3800 Reservoir Road, Room 1321, Washington, DC 20007, USA.
Current Hematology Reports
|February 22, 2005
Summary
Dengue virus infection can cause low platelet counts (thrombocytopenia) and bleeding. These complications stem from complex interactions, but platelet levels don't always predict bleeding risk.
Area of Science:
- Medical Virology
- Hematology
- Immunology
Background:
- Dengue is a significant global health concern, causing substantial human illness and death.
- Thrombocytopenia and bleeding are serious complications of dengue virus infection.
Purpose of the Study:
- To review the pathophysiology of thrombocytopenia and clinical bleeding in dengue.
- To elucidate the complex mechanisms underlying these complications.
Main Methods:
- Literature review of studies on dengue pathophysiology.
- Analysis of mechanisms involving platelet activation, coagulation, complement, cytokines, and endothelial cells.
Main Results:
- Platelet counts show poor correlation with the severity of clinical bleeding.
- Complex interactions between multiple systems contribute to thrombocytopenia and coagulopathy.
Conclusions:
- Close monitoring for hemorrhagic manifestations and thrombocytopenia is crucial in dengue patients.
- Symptomatic thrombocytopenia may necessitate platelet transfusions.