Research Article
A Prospective Evaluation of Two Rapid Phenotypical Antimicrobial Susceptibility Technologies for the Diagnostic Stewardship of Sepsis
Table 3
Polymicrobial BCs: identification results of the direct MALDI-TOF MS ID and Pheno ID compared to culture-based ID.
| Direct MALDI-TOF ID | MALDI-TOF score value | Additional organism from culture ID | Accelerate Pheno ID | Comment | 3.000–2.300 | 2.299–2.000 | 1.999–1.700 | <1.700 |
| Enterobacter cloacae | | 1 | | | Staphylococcus warneri | No identification | Suspected off-panel, no AST | Klebsiella oxytoca | 1 | | | | Citrobacter freundi | Klebsiella spp. | Klebsiella spp. detected correctly | Klebsiella pneumoniae | | 1 | | | Staphylococcus haemolyticus | Klebsiella spp. | Gram-negative organism detected correctly | Klebsiella pneumoniae | | 1 | | | Bacillus circulans | | Klebsiella spp./additional bacteria or yeasts, no AST, growth control failure | Enterococcus faecalis | | 1 | | | Pseudomonas oryzihabitans | Enterococcus faecalis | Gram-positive organism detected correctly, no AST | Enterococcus faecalis | 1 | | | | Streptococcus parasanguinis | Enterococcus faecalis | Gram-positive organism detected correctly, no AST | Enterococcus faecalis | | 1 | | | Klebsiella pneumoniae | Enterococcus faecalis, Klebsiella spp. | Gram-negative organism detected correctly, no AST |
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