Table 3.
Laboratory detection of carbapenemase-producing A. baumannii and P. aeruginosa.
| Species (n) | PCR (n) | MIC of imipenem (mg/L) |
MIC of meropenem(mg/L) |
sCIM |
mCIM |
||||
|---|---|---|---|---|---|---|---|---|---|
| ≥8 | ≤2 | ≥8 | ≤2 | + | − | + | − | ||
| P.aeruginosa (158) | IMP-4 (1) | 1 | 0 | 1 | 0 | 1 | 0 | 1 | 0 |
| VIM-1 (13) | 13 | 0 | 13 | 0 | 13 | 0 | 13 | 0 | |
| VIM-2 (2) | 2 | 0 | 2 | 0 | 2 | 0 | 2 | 0 | |
| VIM-4 (9) | 9 | 0 | 9 | 0 | 9 | 0 | 8 | 1 | |
| None (133) | 124 | 9 | 124 | 9 | 0 | 133 | 0 | 133 | |
| A.baumannii (73) | OXA-23 (52) | 52 | 0 | 52 | 0 | 52 | 0 | 0 | 52 |
| VIM-2 (1) | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | |
| None (20) | 0 | 20 | 0 | 20 | 0 | 20 | 0 | 20 | |
+, positive; −, negative; sCIM, simplified carbapenem inactivation method; mCIM, modified carbapenem inactivation method.