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Latex particle agglutination tests on the cerebrospinal fluid. A reappraisal

M H Rathore1, S Rathore, M A Easley

  • 1Northeast Florida Pediatric AIDS Program, University of Florida Health Science Center, Jacksonville.

The Journal of the Florida Medical Association
|January 1, 1995
PubMed

Insights

Latex particle agglutination (LPA) tests for meningitis diagnosis are expensive and not cost-effective. These rapid diagnostic tests were only useful for managing Group B streptococcal infections in neonates.

Area of Science:

  • Clinical Microbiology
  • Infectious Diseases
  • Diagnostic Testing

Background:

  • Rapid diagnostic tests are crucial for early identification of microbial infections.
  • Latex particle agglutination (LPA) tests on cerebrospinal fluid (CSF) are commonly employed for rapid meningitis diagnosis.

Purpose of the Study:

  • To evaluate the clinical utility of LPA tests in managing patients with suspected meningitis.
  • To assess the cost-effectiveness of LPA testing in a clinical setting.

Main Methods:

  • Over an 11-month period, 1,540 CSF specimens were analyzed using LPA tests.
  • Testing targeted common meningitis pathogens: H. influenzae type b, Group B streptococcus (GBS), N. meningitidis, and S. pneumoniae.

Main Results:

  • Only 27 out of 1,540 CSF specimens tested positive via LPA.
  • LPA tests demonstrated utility primarily in managing neonatal GBS meningitis.
  • The overall cost-effectiveness of LPA testing was found to be poor.

Conclusions:

  • Latex particle agglutination (LPA) tests for meningitis are not cost-effective in most cases.
  • The diagnostic value of LPA is limited, with significant utility only identified for GBS in neonates.

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