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Exchange transfusion in severe falciparum malaria
S Gulprasutdilog1, V Chongkolwatana, P Buranakitjaroen
1Department of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand.
Summary
Severe malaria caused by Plasmodium falciparum can be fatal. Exchange blood transfusion effectively reduces parasite load, toxic substances, and sludging in severe malaria cases.
Area of Science:
- Infectious Diseases
- Hematology
- Critical Care Medicine
Background:
- Plasmodium falciparum malaria can lead to severe complications and death.
- Mortality is directly correlated with the level of parasitemia.
- Exchange blood transfusion has been previously reported as a supportive therapy.
Purpose of the Study:
- To evaluate the efficacy of exchange blood transfusion as an adjunct therapy for severe Plasmodium falciparum malaria.
- To determine the relationship between the volume of blood exchanged and the reduction in parasitemia.
Main Methods:
- Retrospective analysis of thirteen cases of severe falciparum malaria.
- Treatment involved quinine dihydrochloride infusion and exchange blood transfusion (2,320-8,000 ml).
- Parasitemia levels were monitored before and after transfusion.
Main Results:
- Exchange transfusion significantly reduced parasitemia, with the most substantial drop occurring within the first 2,000 ml of blood exchange.
- An average parasitemia reduction from 20.7% to 9.3% was observed early in the transfusion process.
- A 4,000 ml exchange transfusion reduced parasitemia to 5.1% in some patients.
Conclusions:
- Exchange blood transfusion is an effective adjunct therapy for severe Plasmodium falciparum malaria.
- Specific volumes of exchange transfusion are suggested based on initial parasitemia levels to achieve a target reduction.
- This therapy aids in reducing parasite load and improving patient outcomes.