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Falciparum malaria parasitemia index for predicting severe malaria.
MedLine Citation:
PMID:  22221310     Owner:  NLM     Status:  Publisher    
Introduction:  While hyperparasitemia is considered an important indicator for the development of severe malaria, there is currently no consensus on the quantitative definition of hyperparasitemia. This study was conducted to establish a cutoff point for peripheral parasitemia among patients with Plasmodium falciparum malaria, to define severe malaria. Methods:  The clinical presentations of 200 uncomplicated P. falciparum malaria, and 189 severe P. falciparum malaria, patients, admitted to the Hospital for Tropical Diseases, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand, were analyzed. Results:  A peripheral parasitemia of 0.5% was found to be the optimal cutoff point for defining severe malaria, demonstrating highest sensitivity (85.1%), specificity (62.0%), and accuracy (73.2%). Conclusion:  Symptoms of severe falciparum malaria depend on many factors. For the definition of hyperparasitemia in areas of low or seasonal transmission, peripheral parasitemia of 0.5% might be considered a cutoff point for discrimination between severity levels. This value might be useful for the clinical management of malaria, particularly in hypo-endemic areas, unstable transmission areas, and other areas with similar transmission patterns.
N Tangpukdee; S Krudsood; S Kano; P Wilairatana
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-1-4
Journal Detail:
Title:  International journal of laboratory hematology     Volume:  -     ISSN:  1751-553X     ISO Abbreviation:  -     Publication Date:  2012 Jan 
Date Detail:
Created Date:  2012-1-6     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101300213     Medline TA:  Int J Lab Hematol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2012 Blackwell Publishing Ltd.
Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand Department of Tropical Hygiene, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand Center for Emerging and Neglected Infectious Diseases, Mahidol University, Bangkok, Thailand Department of Tropical Medicine and Malaria, Research Institute, National Center for Global Health and Medicine, Tokyo, Japan WHO Collaborating Center for Clinical Management of Malaria, Mahidol University, Bangkok, Thailand.
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