Table 1 Susceptibility pattern of nosocomial infection agents obtained at local and central laboratories.
Drugs | % Susceptibility (Number tested) | ||
|---|---|---|---|
| Â | Locally determined | Centralized | |
| Â | Routine | Etest | Agar DM |
Escherichia coli | |||
Meropenem | 100 (92) | 100 (139) | 100 (139) |
Imipenem | 100 (139) | 100 (139) | 100 (139) |
Piperacillin/tazobactam* | 82 (139) | 89 (139) | 90 (139) |
Enterobacteriaceae (other than E coli) | |||
Meropenem | 100 (86) | 99 (139) | 99 (139) |
Imipenem | 99 (139) | 97 (139) | 97 (139) |
Piperacillin/tazobactam* | 78 (139) | 86 (139) | 99 (139) |
Pseudomonas aeruginosa | |||
Meropenem | 87 (87) | 91 (129) | 95 (129) |
Imipenem | 78 (137) | 70 (129) | 84 (129) |
Piperacillin/tazobactam* | 88 (136) | 89 (129) | 90 (129) |
Acinetobacter | |||
Meropenem | 88 (50) | 87 (86) | 95 (79) |
Imipenem | 94 (84) | 94 (86) | 97 (79) |
Piperacillin/tazobactam* | 79 (82) | 80 (86) | 100* (79) |
Other non fermentative bacteria | |||
Meropenem | 73 (33) | 89 (33) | 88 (33) |
Imipenem | 85 (41) | 87 (33) | 88 (33) |
Piperacillin/tazobactam* | 90 (41) | 97 (33) | 90 (33) |
Staphylococcus aureus (susceptible to methicillin) | |||
Meropenem | - | 100 (145) | 100 (145) |
Imipenem | - | 100 (145) | 100 (145) |
Piperacillin/tazobactam* | - | 100 (145) | 100 (145) |
Coagulase negative staphylococci (susceptible to methicillin) | |||
Meropenem | - | 100 (129) | 100 (129) |
Imipenem | - | 100 (129) | 100 (129) |
Piperacillin/tazobactam* | - | 100 (129) | 100 (129) |
Streptococcus pneumoniae | |||
Meropenem | - | 100 (136) | 100 (136) |
Imipenem | - | 100 (136) | 100 (136) |
Piperacillin/tazobactam* | - | 100 (136) | 100 (136) |