In-vitro susceptibility of relatively resistant bacteria to imipenem

In vitro activity of imipenem was tested against 965 clinical isolated from a major referral center in Saudi Arabia. Many of these strains were highly resistant to commonly used antibiotics, such as ampicillin, cephalosporins, gentamicin, pperacillin, and ticarcillin. All the 727 isolated of Enterobacteriaceae, Acinetobacter, Staphylococcus aurous, enterococci, and other streptococci were susceptible to imipenem. Of the strains of Pseudomonas aeruginosa [95%] and S. epidermidis [90%] were also inhibited. Nine of the 11 isolates of pseudomonads other than P. aeruginosa were resistant to this antibiotic