Table 1 Resistance rates (percentages) of Pseudomonas aeruginosa to antibiotics
| Â | Site of isolation | |||
|---|---|---|---|---|
Antibiotic | MIC 50/90 | Sputum n = 78 | Tracheal aspirates n = 94 | Bronchial lavage n = 77 |
Ampicillin/sulbactam | 8/32 | 96.6 | 100 | 100 |
Ticarcillin | 16/128 | 50.0 | 55.2 | 15.2 |
Ticarcillin/clavulanic acid | 16/>64 | 7.3 | 15.1 | 15.0 |
Piperacillin | 16/128 | 22.7 | 20.9 | 21.6 |
Aztreonam | 2/>16 | 70.0 | 79.1 | 49.2 |
Cefotaxim | 8/>32 | 76.1 | 89.5 | 60.0 |
Ceftriaxone | 16/64 | 86.9 | 100 | 66.1 |
Cefoperazone | 16/64 | 56.4 | 55.5 | 4.2 |
Ceftazidime | 1/>16 | 54.0 | 67.4 | 27.6 |
Gentamicin | 4/>8 | 68.8 | 86.0 | 11.7 |
Tobramycin | 4/>8 | 63.1 | 79.3 | 29.3 |
Amikacin | 16/64 | 25.3 | 40.9 | 6.6 |
Ciprofloxacin | 1/4 | 16.6 | 18.1 | 13.1 |
Imipenem/cilastatin | 4/>8 | 19.2 | 28.4 | 15.1 |