PMID- 35428573 OWN - NLM STAT- MEDLINE DCOM- 20220512 LR - 20220512 IS - 1437-7780 (Electronic) IS - 1341-321X (Linking) VI - 28 IP - 7 DP - 2022 Jul TI - Performance of the new FilmArray Blood Culture Identification 2 panel and its potential impact on clinical use in patients with Gram-negative bacteremia. PG - 1037-1040 LID - S1341-321X(22)00117-9 [pii] LID - 10.1016/j.jiac.2022.04.008 [doi] AB - INTRODUCTION: Rapid diagnostic tests have been developed recently for rapid species or resistance genes identification, offering the potential to improve the selection of appropriate antibiotics. The newly developed FilmArray Blood Culture Identification 2 (BCID2) panel, which can identify more species and resistance genes, such as extended-spectrum beta-lactamase, is expected to make an impact on antimicrobial practice. METHODS: The consecutive 50 inpatients with Gram-negative bacilli bacteremia were enrolled to this retrospective single-center study. In addition to the existing FilmArray Blood Culture Identification (BCID) panel, we have implemented BCID2 panel for positive blood culture. The sensitivity and specificity of BCID and BCID2 panel were respectively calculated, and a simulation study of time to effective, optimal and de-escalation therapy was performed based on BCID or BCID2 result. RESULTS: A total of 52 Gram-negative organisms in 50 patients were identified from blood cultures. Of these, 45 (87%) organisms were detected by BCID2 panel, which was more than BCID panel (41 organisms, 79%). BCID2 panel detected 5 CTX-M genes, which were concordant with conventional method. The time to effective therapy did not differ between BCID arm and BCID2 arm; however, the median time to optimal therapy (34 h in BCID arm and 26 h in BCID2 arm, P = 0.0007) and the median time to de-escalation therapy (42 h in BCID arm and 22 h in BCID2 arm, P = 0.0005) were significantly shortened. CONCLUSIONS: This simulation study of BCID2 panel showed high sensitivity and specificity, and the potential impact on shortening the time to optimal and de-escalation therapy. CI - Copyright (c) 2022 Japanese Society of Chemotherapy and The Japanese Association for Infectious Diseases. Published by Elsevier Ltd. All rights reserved. FAU - Kanda, Naoki AU - Kanda N AD - Department of Emergency and Critical Care Medicine, Hitachi General Hospital, Ibaraki, Japan; Division of General Internal Medicine, Jichi Medical University Hospital, Tochigi, Japan. FAU - Hashimoto, Hideki AU - Hashimoto H AD - Department of Emergency and Critical Care Medicine, Hitachi General Hospital, Ibaraki, Japan; Department of Infectious Diseases, The University of Tokyo Hospital, Tokyo, Japan. Electronic address: hidehashimoto-tky@umin.ac.jp. FAU - Suzuki, Takahiro AU - Suzuki T AD - Department of Clinical Laboratory, Hitachi General Hospital, Ibaraki, Japan. FAU - Nakamura, Kensuke AU - Nakamura K AD - Department of Emergency and Critical Care Medicine, Hitachi General Hospital, Ibaraki, Japan. LA - eng PT - Journal Article DEP - 20220412 PL - Netherlands TA - J Infect Chemother JT - Journal of infection and chemotherapy : official journal of the Japan Society of Chemotherapy JID - 9608375 RN - 0 (Anti-Bacterial Agents) SB - IM MH - Anti-Bacterial Agents/therapeutic use MH - *Bacteremia/diagnosis/drug therapy MH - *Blood Culture/methods MH - Gram-Positive Bacteria MH - Humans MH - Retrospective Studies OTO - NOTNLM OT - Antimicrobial resistance OT - Antimicrobial stewardship OT - Extended-spectrum beta-lactamase OT - Nucleic acid amplification OT - Rapid diagnostic test EDAT- 2022/04/17 06:00 MHDA- 2022/05/14 06:00 CRDT- 2022/04/16 05:19 PHST- 2022/01/16 00:00 [received] PHST- 2022/03/29 00:00 [revised] PHST- 2022/04/07 00:00 [accepted] PHST- 2022/04/17 06:00 [pubmed] PHST- 2022/05/14 06:00 [medline] PHST- 2022/04/16 05:19 [entrez] AID - S1341-321X(22)00117-9 [pii] AID - 10.1016/j.jiac.2022.04.008 [doi] PST - ppublish SO - J Infect Chemother. 2022 Jul;28(7):1037-1040. doi: 10.1016/j.jiac.2022.04.008. Epub 2022 Apr 12.