Publication: Sequestration and microvascular congestion are associated with coma in human cerebral malaria
Issued Date
2012-02-15
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ISSN
00221899
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2-s2.0-84863063544
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Mahidol University
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SCOPUS
Bibliographic Citation
Journal of Infectious Diseases. Vol.205, No.4 (2012), 663-671
Suggested Citation
Mark J. Ponsford, Isabelle M. Medana, Panote Prapansilp, Tran Tinh Hien, Sue J. Lee, Arjen M. Dondorp, Margaret M. Esiri, Nicholas P J Day, Nicholas J. White, Gareth D H Turner Sequestration and microvascular congestion are associated with coma in human cerebral malaria. Journal of Infectious Diseases. Vol.205, No.4 (2012), 663-671. doi:10.1093/infdis/jir812 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/14951
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Title
Sequestration and microvascular congestion are associated with coma in human cerebral malaria
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Abstract
The pathogenesis of coma in severe Plasmodium falciparum malaria remains poorly understood. Obstruction of the brain microvasculature because of sequestration of parasitized red blood cells (pRBCs) represents one mechanism that could contribute to coma in cerebral malaria. Quantitative postmortem microscopy of brain sections from Vietnamese adults dying of malaria confirmed that sequestration in the cerebral microvasculature was significantly higher in patients with cerebral malaria (CM; n = 21) than in patients with non-CM (n = 23). Sequestration of pRBCs and CM was also significantly associated with increased microvascular congestion by infected and uninfected erythrocytes. Clinicopathological correlation showed that sequestration and congestion were significantly associated with deeper levels of premortem coma and shorter time to death. Microvascular congestion and sequestration were highly correlated as microscopic findings but were independent predictors of a clinical diagnosis of CM. Increased microvascular congestion accompanies coma in CM, associated with parasite sequestration in the cerebral microvasculature. © 2011 The Author.