Table 2.
Rate of antibiotic resistance in ventilator-associated pneumonia isolates
| Antimicrobial agent (disk content) | Percentage of resistant isolates (number of 32) | Percentage of intermediate isolates (number of 32) | Percentage of sensitive isolates (number of 32) |
|---|---|---|---|
| Imipenem (10 µg) | 75% (24) | 21.8% (7) | 3.1% (1) |
| Piperacillin (100 µg) | 96.8% (31) | 0% | 3.1% (1) |
| Aztreonam (30 µg) | 68.7% (22) | 15.6% (5) | 15.6% (5) |
| Trimethoprim/sulfamethoxazole (1.25/23.75 µg) | 81.2% (26) | 0% | 18.7% (6) |
| Ampicillin/sulbactam (10-10 µg) | 15.6% (5) | 6.2% (2) | 78.1% (25) |
| Tobramycin (10 µg) | 93.7% (30) | 0% | 6.2% (2) |
| Cefotaxime (30 µg) | 96.8% (31) | 0% | 3.1% (1) |
| Amoxicillin/clavulanic acid (20-10 µg) | 100% (32) | 0% | 0% |
| Tetracycline (30 µg) | 90.6% (29) | 0% | 9.3% (3) |
| Piperacillin/tazobactam (100-10 µg) | 90.6% (29) | 6.2% (2) | 3.1% (1) |
| Amikacin (30 µg) | 65.6% (21) | 21.8% (7) | 12.5% (4) |
| Ciprofloxacin (5 µg) | 96.8% (31) | 0% | 3.1% (1) |
| Ceftazidime (30 µg) | 96.8% (31) | 0% | 3.1% (1) |
| Gentamicin (10 µg) | 87.5% (28) | 6.2% (2) | 6.2% (2) |
| Cefepime (30 µg) | 78.1% (25) | 12.5% (4) | 9.3% (3) |