Table 2. MALDI-TOF MS results and final identification obtained by conventional processing in all misidentified broths.
| Sample | Direct MALDI-TOF MS processing | Conventional processing | ||
|---|---|---|---|---|
| ID | Score | Result | ||
| Abdominal abscess |
Mycobacterium scrofulaceum (1) b |
1.206 | No reliable identification | Staphylococcus epidermidis |
| Abdominal abscess | - | <0 | No peaks found | Polymicrobial floraa |
| Abdominal abscess | - | <0 | No peaks found | Polymicrobial floraa |
| Abdominal abscess | - | <0 | No peaks found | Candida albicans |
| Central catheter |
Shewanella algae (1) b |
1.335 | No reliable identification | Pseudomonas aeruginosa |
| Cervical abscess | - | <0 | No peaksfound | Polymicrobialfloraa |
| Cerebrospinal fluid | - | <0 | No peaks found | Candida parapsilopsis |
| Facial abscess |
Paenibacillussp. (1) b |
1.171 | No reliable identification | Staphylococcus epidermidis |
| Wound exudate | - | <0 | No peaks found | Polymicrobial floraa |
| Skin biopsy | - | <0 | No peaks found | Candida albicans |
a More than 4 microorganisms were isolated in agar plates after processing the broth by conventional laboratory procedures.
b(N°): Number of consecutive identification proposals provided by MALDI Biotyper 3.0 for the microorganisms with unreliable identifications by direct MALDI-TOF MS (<1.4).