We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Multicenter Evaluation of Rapid BACpro ® II for the Accurate Identification of Microorganisms Directly from Blood Cultures Using MALDI-TOF MS.
- Authors
Oviaño, Marina; Ingebretsen, André; Steffensen, Anne K.; Croxatto, Antony; Prod'hom, Guy; Quiroga, Lidia; Bou, Germán; Greub, Gilbert; Rodríguez-Temporal, David; Rodríguez-Sánchez, Belén
- Abstract
The identification of microorganisms directly from blood cultures using MALDI-TOF MS has been shown to be the most impacting application of this methodology. In this study, a novel commercial method was evaluated in four clinical microbiology laboratories. Positive blood culture samples (n = 801) were processed using a rapid BACpro® II kit and then compared with the routine gold standard. A subset of monomicrobial BCs (n = 560) were analyzed in parallel with a Sepsityper® Kit (Bruker Daltonics, Bremen, Germany) and compared with the rapid BACpro® II kit. In addition, this kit was also compared with two different in-house methods. Overall, 80.0% of the monomicrobial isolates (609/761; 95% CI 71.5–88.5) were correctly identified by the rapid BACpro® II kit at the species level (92.3% of the Gram negative and 72.4% of the Gram positive bacteria). The comparison with the Sepsityper® Kit showed that the rapid BACpro® II kit generated higher rates of correct species-level identification for all categories (p > 0.0001), except for yeasts identified with score values > 1.7. It also proved superior to the ammonium chloride method (p > 0.0001), but the differential centrifugation method allowed for higher rates of correct identification for Gram negative bacteria (p > 0.1). The percentage of accurate species-level identification of Gram positive bacteria was particularly noteworthy in comparison with other commercial and in-house methods.
- Subjects
GRAM-negative bacteria; AMMONIUM chloride; MEDICAL microbiology; MICROORGANISMS
- Publication
Diagnostics (2075-4418), 2021, Vol 11, Issue 12, p2251
- ISSN
2075-4418
- Publication type
Article
- DOI
10.3390/diagnostics11122251