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Evaluation of the BioFire® FilmArray® Pneumonia plus Panel for Detecting Bacterial Etiological Agents of Lower Respiratory Tract Infections in an Oncologic Hospital. Comparison with Conventional Culture Method


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Comparison of bacteria identified by the BioFire® FilmArray® Pneumonia plus Panel (PNP) and the conventional quantitative culture methods (CM) in 27 bacteriologically positive BAL samples.

Bacterium Conventional quantitative culture methods (CM) BioFire® FilmArray® Pneumonia plus Panel (PNP)
Total number of bacteria detected* Total number of bacteria detected
Enterobacter cloacae complex** 1 (0) 2
Escherichia coli** 7 (4) 8
Haemophilus influenzae 4 (3) 4
Klebsiella oxytoca 1 (1) 1
Klebsiella pneumoniae group 3 (2) 3
Moraxella (Branhamella) catarrhalis** 0 (0) 1
Proteus spp. 3 (1) 3
Pseudomonas aeruginosa**/*** 5 (3) 5
Serratia marcescens** 0 (0) 1
Staphylococcus aureus** 9 (4) 10
Streptococcus agalactiae 1 (1) 1
Streptococcus pneumoniae** 2 (2) 3
Total number 36 (21) 42
Resistance genes
CTX-M 1# 1
IMP 0 0
KPC 0 0
NDM 0 0
VIM 0 0
OXA-48-like 0 0
mecA/C and MREJ 0 0
Total number 1 1

Performance of quantitative growth of fungi in conventional quantitative culture method (CM).

Name of fungi Quantity (CFU/ml)
102-103 103-104 104-105 > 105
Aspergillus fumigatus 4 3 0 0
Candida glabrata 5 8 0 0
Candida albicans 6 5 1 0
Candida tropicalis 2 2 0 0
Candida dubliniensis 3 0 0 0
Kluyveromyces marxianus (formerly Candida kefyr) 1 0 0 0
Pichia kudriavzevii (formerly Candida krusei) 0 1 0 0
Saccharomyces cerevisiae 1 0 0 0
Penicillium spp. 1 0 0 0
Total number 23 19 1 0

Comparison of conventional quantitative culture method (CM) and the BioFire® FilmArray® Pneumonia plus Panel (PNP). Overall sensitivity, specificity, accuracy, and positive and negative predictive values.

Methods Samples TP FP FN TN SENS SP ACC PPV NPV FPR FNR AUC SE P
PNP vs. comb BAL 27 0 1 51 0.964 1.000 0.987 1.000 0.981 0 0.036 0.982 0.02 0.0000
CM vs. comb BAL 17 0 11 51 0.607 1.000 0.861 1.000 0.823 0.000 0.393 0.804 0.06 0.0000
CM vs. PNP BAL 16 1 11 51 0.593 0.981 0.848 0.941 0.823 0.019 0.407 0.787 0.062 0.0000
eISSN:
2544-4646
Idioma:
Inglés
Calendario de la edición:
4 veces al año
Temas de la revista:
Life Sciences, Microbiology and Virology