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Journal of Clinical Microbiology, December 2001, p. 4468-4471, Vol. 39, No. 12
Division of Clinical Microbiology, Department
of Laboratory Medicine and Pathology,1
Division of Infectious Diseases, Department of Internal
Medicine,2 and Department of Health
Sciences Research,3 Mayo Clinic, Rochester,
Minnesota 55905
Received 11 January 2001/Returned for modification 15 March
2001/Accepted 26 September 2001
An evaluation was undertaken to determine the utility of the BACTEC
Peds Plus/F bottle and the BACTEC 9240 instrument (Becton Dickinson
Diagnostic Instrument Systems, Sparks, Md.) for the detection of
clinically significant microorganisms in synovial fluid specimens. The
Peds Plus/F bottle was used because in our laboratory the quantity of
synovial fluid available for culture is frequently in the range of 0.5 to 3.0 ml. The culture results obtained with the Peds Plus/F bottle
were compared to those obtained by a conventional agar plate method for
a total of 805 synovial fluid specimens. Microbial growth was produced
by 74 cultures (9.2%) from 60 patients, yielding a total of 77 microorganisms. Organisms were classified as pathogens
(n = 62), contaminants (n = 12), or indeterminate (n = 3) on the basis of a
review of the patients' medical histories. Culture using BACTEC Peds
Plus/F bottle detected statistically significantly more pathogens
overall (62 versus 51 pathogens [P = 0.001]) and
statistically fewer contaminants overall (1 versus 11 contaminants
[P = 0.006]) than culture by the agar plate
method. These results indicate the superior performance of the BACTEC
Peds Plus/F bottle over the conventional agar plate method for the
detection of clinically significant microorganisms from synovial fluid specimens.
0095-1137/01/$04.00+0 DOI: 10.1128/JCM.39.12.4468-4471.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.
Culture with BACTEC Peds Plus/F Bottle Compared with
Conventional Methods for Detection of Bacteria in Synovial
Fluid
*
Corresponding author. Mailing address: Division of
Clinical Microbiology, Department of Laboratory Medicine and Pathology, Hilton 470, Mayo Clinic, 200 First St., Rochester, MN 55905. Phone: (507) 284-2901. Fax: (507) 284-4272. E-mail:
cockerill.franklin{at}mayo.edu.
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