Journal of Antimicrobial Chemotherapy (2000) 45, 63-68
© 2000 The British Society for Antimicrobial Chemotherapy
Evaluation of cefepime alone and in combination with vancomycin against penicillin-resistant pneumococci in the rabbit meningitis model and in vitro
a Department of Internal Medicine, Inselspital, 3010 Berne; b Department of Internal Medicine, Zieglerspital, 3007 Berne; c Institute of Medical Microbiology, University of Berne, Berne, Switzerland
Cefepime, a broad-spectrum, fourth-generation cephalosporin, showed excellent CSF penetration with levels ranging between 10 and 16 mg/L after two intravenous injections (100 mg/kg). The bactericidal activity of cefepime (0.60 ± 0.28
log10 cfu/mL/h) was superior to that of ceftriaxone (0.34 ± 0.23
log10 cfu/mL/h, P < 0.05) and vancomycin (0.39 ± 0.19
log10 cfu/mL/h, P < 0.05) in the treatment of rabbits with meningitis caused by an isolate highly resistant to penicillin (MIC of penicillin G: 4 mg/L). The addition of vancomycin to both cephalosporins did not significantly increase the killing rate compared with monotherapies (P > 0.05). Similar results were obtained in timekilling experiments in vitro.
* Corresponding author. Tel: +41-31-632-2111; Fax: +41-31-632-3847; E-mail: pcottagn{at}insel.ch
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