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J Antimicrob Chemother. 1997 Apr;39(4):515-8.

An evaluation of the bactericidal activity of ampicillin/sulbactam, piperacillin/tazobactam, imipenem or nafcillin alone and in combination with vancomycin against methicillin-resistant Staphylococcus aureus (MRSA) in time-kill curves with infected fibrin clots.

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The Anti-infective Research Laboratory, Detroit Receiving Hospital, Wayne State University, MI 48201, USA.


The activity of piperacillin/tazobactam, ampicillin/sulbactam, imipenem and nafcillin alone and in combination with vancomycin was compared with vancomycin monotherapy against MRSA in test-tube time-kill studies and in infected fibrin clots. Bactericidal activity was achieved with all regimens except nafcillin monotherapy in test tubes but only with imipenem/vancomycin and nafcillin/vancomycin in fibrin clots infected with heterogeneous strains. No regimen was effective against the homogeneous strain. These agents may have potential as alternatives to vancomycin in selected infections.

[Indexed for MEDLINE]

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