PMID- 34350523 OWN - NLM STAT- MEDLINE DCOM- 20220214 LR - 20220224 IS - 1435-4373 (Electronic) IS - 0934-9723 (Print) IS - 0934-9723 (Linking) VI - 41 IP - 3 DP - 2022 Mar TI - Rapid molecular detection of pathogenic microorganisms and antimicrobial resistance markers in blood cultures: evaluation and utility of the next-generation FilmArray Blood Culture Identification 2 panel. PG - 363-371 LID - 10.1007/s10096-021-04314-2 [doi] AB - Rapid detection of pathogens causing bloodstream infections (BSI) directly from positive blood cultures is of highest importance in order to enable an adequate and timely antimicrobial therapy. In this study, the utility and performance of a recently launched next-generation fully automated test system, the Biofire FilmArray(R) Blood Culture Identification 2 (BCID2) panel, was evaluated using a set of 103 well-characterized microbial isolates including 29 antimicrobial resistance genes and 80 signal-positive and 23 signal-negative clinical blood culture samples. The results were compared to culture-based reference methods, MALDI-TOF, and/or 16S rDNA sequencing. Of the clinical blood culture samples, 68 were monomicrobial (85.0%) and 12 polymicrobial (15.0%). Six samples contained ESBL (bla(CTX-M)), two MRSA (mecA), and three MRSE (mecA) isolates. In overall, the FilmArray BCID2 panel detected well on-panel targets and resistance markers from mono- and polymicrobial samples. However, one Klebsiella aerogenes and one Bacteroides ovatus were undetected, and the assay falsely reported one Shigella flexneri as Escherichia coli. Hence, the sensitivity and specificity for detecting microbial species were 98.8% (95%CI, 95.8-99.9%) and 99.9% (95%CI, 99.8-99.9%), respectively. The sensitivity and specificity for detecting of resistance gene markers were 100%. The results were available within 70 min from signal-positive blood cultures with minimal hands-on time. In conclusion, the BCID2 test allows reliable and simplified detection of a vast variety of clinically relevant microbes causing BSI and the most common antimicrobial resistance markers present among these isolates. CI - (c) 2021. The Author(s). FAU - Holma, Tanja AU - Holma T AD - HUS Diagnostic Center, HUSLAB, Department of Clinical Microbiology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland. tanja.holma@hus.fi. FAU - Torvikoski, Jukka AU - Torvikoski J AD - HUS Diagnostic Center, HUSLAB, Department of Clinical Microbiology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland. FAU - Friberg, Nathalie AU - Friberg N AD - HUS Diagnostic Center, HUSLAB, Department of Clinical Microbiology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland. FAU - Nevalainen, Annika AU - Nevalainen A AD - HUS Diagnostic Center, HUSLAB, Department of Clinical Microbiology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland. FAU - Tarkka, Eveliina AU - Tarkka E AD - HUS Diagnostic Center, HUSLAB, Department of Clinical Microbiology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland. FAU - Antikainen, Jenni AU - Antikainen J AD - HUS Diagnostic Center, HUSLAB, Department of Clinical Microbiology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland. FAU - Martelin, Jari J AU - Martelin JJ AD - HUS Diagnostic Center, HUSLAB, Department of Clinical Microbiology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland. LA - eng PT - Journal Article DEP - 20210805 PL - Germany TA - Eur J Clin Microbiol Infect Dis JT - European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology JID - 8804297 RN - 0 (Anti-Bacterial Agents) RN - 0 (Anti-Infective Agents) SB - IM EIN - Eur J Clin Microbiol Infect Dis. 2022 Feb 8;:. PMID: 35133542 MH - Anti-Bacterial Agents/pharmacology MH - *Anti-Infective Agents MH - *Bacteremia/diagnosis MH - Bacteria/genetics MH - Blood Culture MH - Drug Resistance, Bacterial MH - Humans PMC - PMC8831274 OTO - NOTNLM OT - Antimicrobial resistance OT - BSI OT - Bacteremia OT - Blood culture OT - Molecular detection methods OT - Rapid diagnostics COIS- The authors declare no competing interests. EDAT- 2021/08/06 06:00 MHDA- 2022/02/15 06:00 PMCR- 2021/08/05 CRDT- 2021/08/05 06:38 PHST- 2021/03/09 00:00 [received] PHST- 2021/07/09 00:00 [accepted] PHST- 2021/08/06 06:00 [pubmed] PHST- 2022/02/15 06:00 [medline] PHST- 2021/08/05 06:38 [entrez] PHST- 2021/08/05 00:00 [pmc-release] AID - 10.1007/s10096-021-04314-2 [pii] AID - 4314 [pii] AID - 10.1007/s10096-021-04314-2 [doi] PST - ppublish SO - Eur J Clin Microbiol Infect Dis. 2022 Mar;41(3):363-371. doi: 10.1007/s10096-021-04314-2. Epub 2021 Aug 5.