Evaluation of alternative diagnostic techniques for diagnosis of cerebral malaria in a tertiary referral hospital in Bangladesh

Mymensingh Med J. 2008 Jul;17(2):180-5.

Abstract

Five alternative techniques for diagnosis of malaria were evaluated in 124 clinically diagnosed cerebral malaria cases admitted in a tertiary hospital in Bangladesh. Clinical diagnosis of cerebral malaria was done by WHO criteria. The tests were conventional routine malaria microscopy; prolonged microscopy; dipstick antigen capture assay (Para Sight TM-F test); pigments in peripheral leucocytes and routine microscopy repeated at 12 hours interval. First four tests were done at 0 hours of hospital admission and repeat routine microscopy was added at 12 hours interval. Diagnostic capability of the test was 64%, 65%, 69%, 27% and 63% respectively. None of the tests except pigments in peripheral leucocytes was superior at initial evaluation. Only the dipstick test added 5% more diagnostic possibility compared with routine microscopy as standard. Stratification of diagnostic capability in different ways improved diagnosis 15% and 11% in smear negative cases by dipstick and prolonged microscopy respectively. It was increased by 50% (5/10 patients) with dipstick test in the smear negative patients with history of anti-malarials prior to hospital admission.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Animals
  • Antigens, Protozoan
  • Bangladesh
  • Brain Diseases / complications
  • Brain Diseases / diagnosis*
  • Child
  • DNA, Protozoan
  • Diagnostic Techniques and Procedures / instrumentation*
  • Female
  • Glasgow Coma Scale
  • Humans
  • Malaria, Cerebral / complications
  • Malaria, Cerebral / diagnosis*
  • Malaria, Cerebral / microbiology
  • Malaria, Cerebral / parasitology
  • Male
  • Microscopy
  • Middle Aged
  • Parasitic Sensitivity Tests
  • Plasmodium falciparum / isolation & purification*
  • Reagent Kits, Diagnostic
  • Risk Factors
  • Sensitivity and Specificity

Substances

  • Antigens, Protozoan
  • DNA, Protozoan
  • Reagent Kits, Diagnostic