Journal of Antimicrobial Chemotherapy (2000) 46, 827-830
© 2000 The British Society for Antimicrobial Chemotherapy
Brief report |
In vivo activity of levofloxacin alone or in combination with imipenem or amikacin in a mouse model of Acinetobacter baumannii pneumonia
a Service de Microbiologie, Hôpital Louis Mourier, 92701 Colombes; b Clinique de de Réanimation des Maladies Infectieuses; c Service de Pharmacie and e EPI 99 33, Hôpital Bichat-Claude Bernard, 75018 Paris; and d Hoechst Marion Roussel, 92000 Romainville, France
We evaluated the in vivo activity of levofloxacin alone or in combination with imipenem or amikacin in a mouse model of Acinetobacter baumannii pneumonia using a susceptible strain and one with low-level resistance (MIC/MBC of levofloxacin: 0.06/0.06 and 4/4 mg/L, respectively). As demonstrated previously with other pathogens, the AUC/MIC ratio predicted the efficacy of fluoroquinolones against A. baumannii. This parameter correlated with bactericidal effect and survival. Combination therapy did not enhance the efficacy of levofloxacin.
* Corresponding author. Tel: +33-1-4760-6012; Fax: +33-1-4760-6048.
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