Feb 13, 2016

Higher recovery rate of microorganisms from cerebrospinal fluid samples by the BACTEC culture system in comparison with agar culture

Diagnostic Microbiology and Infectious Disease
Adriana CalderaroFlora De Conto

Abstract

The aim of this study was to assess the diagnostic value of the BACTEC FX blood culture (BC) system as compared to the agar culture (AC) of cerebrospinal fluid samples (CSF), evaluating the recovery rate and the time to detection of microorganisms in a 3.5-year period. From December 2011 to May 2015, 1326 CSF samples (694 patients) were submitted to both AC and BC. Among the 150 positive samples (96 patients), 165 microorganisms were detected: 81 by both the protocols, 77 by BC alone, and 7 by AC alone, demonstrating a higher detection rate of BC (95.8%) than AC (53.3%). Although BC presents some disadvantages, it is able to improve the yield of clinically significant microorganisms, and it could potentially reduce the reporting time as compared to AC. The results obtained highlighted the necessity of a combined approach for the successful detection of central nervous system microbial infections.

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References

  • References18
  • Citations1

Citations

Mentioned in this Paper

Microorganism
Study
Neisseria meningitidis
Morbidity Aspects
Mycoplasma pneumoniae
Candida albicans
Haemophilus influenzae
Bacterial Stain, Routine
Agar
Clinical Microbiology

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