Abstract
ObjectivesThe aim of this study was to compare the antibacterial activity of ceftaroline versus vancomycin in the treatment of methicillin-resistant Staphylococcus aureus (MRSA) meningitis in an experimental rabbit meningitis model. MethodsThe antibacterial activity of ceftaroline was compared with vancomycin in the treatment of meningitis induced by MRSA strain ATCC 43300 in an experimental rabbit meningitis model. Quantitative cerebrospinal fluid (CSF) cultures were performed at the beginning of antibiotic treatment and 24h and 73h after the first antibiotic dose. Furthermore, in vitro time–kill data were investigated at 0, 2, 4, 6, 8, 12 and 24h in sterile human serum. ResultsThe difference between the control group versus both treatment groups was significant when comparing the decrease in colony counts in CSF both at 24h and 73h after the first antibiotic dose (P<0.05). At the end of the experiment, there was a significant difference in survival between both the ceftaroline-treated group and the vancomycin-treated group versus the control group, but not between the two treatment groups. ConclusionThese results suggest that the antibacterial activity of both ceftaroline and vancomycin are similar in the treatment of MRSA meningitis in an experimental rabbit meningitis model.
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