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Comparative study of microscopic detection methods and haematological changes in malaria.
1Department of Pathology, Sri Aurobindo Institute of Medical Sciences and Medical College, Indore and Gajra Raja Medical College, Gwalior. drmeenaljain_2005@yahoo.com
Indian Journal of Pathology & Microbiology
|December 22, 2005
Summary
The Quantitative Buffy Coat (QBC) technique is the most effective method for detecting malaria parasites in blood samples. This study found QBC identified more positive cases, including those with low parasite levels, and revealed significant rates of anemia and thrombocytopenia.
Area of Science:
- Medical Parasitology
- Hematology
Background:
- Malaria diagnosis relies on accurate parasite detection.
- Various microscopy techniques exist, each with varying sensitivity.
Purpose of the Study:
- To compare the diagnostic efficacy of Quantitative Buffy Coat (QBC) technique against traditional smear methods for malaria detection.
- To analyze hematological changes associated with malaria infections.
Main Methods:
- A comparative study involving 200 blood samples.
- Utilized Quantitative Buffy Coat (QBC) technique, thick smears, thin smears, and conventional buffy coat smears.
- Performed hematological analysis on positive malaria samples.
Main Results:
- QBC technique detected malaria in 35% of samples, significantly higher than thick smears (31%), thin smears (25%), and conventional buffy coat (17%).
- 8% of samples positive by QBC had low parasitic index.
- Anemia was prevalent in 94.28% of positive cases, with normocytic normochromic anemia in 50%.
- Thrombocytopenia affected 70% of patients, particularly those with Plasmodium falciparum.
Conclusions:
- The QBC technique demonstrates superior sensitivity for malaria parasite detection compared to conventional smear methods.
- Malaria infections are frequently associated with anemia and thrombocytopenia, requiring comprehensive hematological assessment.