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  • Title: [Detection of microorganisms and resistance genes from positive blood cultures using the FilmArray® BCID2 panel: Experience in a pediatric hospital].
    Author: Kuzawka M, Cassanelli M, Capecce F, Pereda R.
    Journal: Rev Argent Microbiol; 2024; 56(3):249-257. PubMed ID: 39079884.
    Abstract:
    The rapid identification of microorganisms that cause bacteremia and their possible resistance markers are extremely important for the timely initiation of effective antibiotic therapy. The FilmArray® panel BCID2 (an automated rapid multiplex PCR assay) detects microorganisms and resistance genes from positive blood cultures within one hour. The aim of this study was to compare the results obtained from the FilmArray® Panel BCID2 and conventional culture in pediatric patients, as well as the reporting times of both methods. Sixty (60) FilmArray® results were included in the analysis. BCID2 showed high agreement with culture in the identification of microorganisms in monomicrobial bacteremias. However, in polymicrobial blood cultures, BCID2 detected a greater number of microorganisms compared to conventional culture, specifically,1 Staphylococcus aureus, 3 Staphylococcus epidermidis, 1 Enterococcus faecium, 2 Klebsiella oxytoca, 1 Acinetobacter calcoaceticus-baumannii complex, 1 Bacteroides fragilis and 1 Haemophilus influenzae. Furthermore, 88.3% (95%CI: 78.7-94.8) of the FilmArray® results coincided with conventional culture, while in polymicrobial bacteremias, BCID2 detected a greater number of microorganisms with respect to conventional culture [70% (95%CI: 39.3-91.5)]. The agreement of resistance genes was good with a few exceptions (one ESBL was not detected by FilmArray® and one S. aureus strain was characterized as methicillin-resistant by BCID2 and methicillin-sensitive by culture). When comparing the time elapsing since the blood culture was reported as positive up to the results were obtained, BCID2 had a median of 2h 50min (IQR of 1 h 58min to 9h 27min) while the conventional culture had a median of 45h 20min (IQR of 24h 57min to 63h 50min).
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