Table 2.
Resistance pattern of non-fermentative Gram-negative bacilli (NFGNB) isolates to different antimicrobial agents according to CLSI guidelines (15).
| Antimicrobial agents | No. of isolates (%) showing antibiotic resistance | ||
|---|---|---|---|
|
| |||
| P. aeruginosa (n=66) | A. baumannii (n=50) | S. maltophilia (n=6) | |
| Piperacillin/tazobactam | 13 (19.7) | 46 (92) | NT |
| Amikacin | 15 (22.7) | 42 (84) | NT |
| Aztreonam | 17 (25.8) | 47 (94) | NT |
| Levofloxacin | 10 (15.2) | 45 (90) | 1 (16.7) |
| Gentamicin | 24 (36.4) | 43 (86) | NT |
| Minocycline | 39 (59.1) | 45 (90) | 1 (16.7) |
| Ceftriaxone | NT | 46 (92) | NT |
| Ceftazidime | 15 (22.7) | 44 (88) | NT |
| Cefotaxime | 56 (84.8) | 45 (90) | NT |
| Cefepime | 19 (28.8) | 44 (88) | NT |
| Imipenem | 8 (12.1) | 44 (88) | NT |
| Meropenem | 12 (18.2) | 45 (90) | NT |
| Trimethoprim/sulfamethoxazole | NT | 45 (90) | 1 (16.7) |
| Colistin | 0 (0) | 0 (0) | 0 (0) |
NT: antibiotics not tested or not recommended by CLSI (Clinical and Laboratory Standards Institute).