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J Chemother. 1991 Apr;3(2):91-7.

Comparison of the effectiveness of various antibiotics in the treatment of methicillin-susceptible Staphylococcus aureus experimental infective endocarditis.

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Department of Cardiology and Microbiology, Murcia General Hospital, Spain.


The effectiveness of various antibiotics was tested in the eradication of a strain of methicillin-susceptible Staphylococcus aureus (MSSA) of cardiac vegetations, in an experimental model of endocarditis in rabbits. Twelve animals comprised the control group and 48 the treated ones. After inducing the experimental endocarditis, the animals were treated for three days; then mortality, blood cultures at 48 and 72 hours and the title of the colony forming units per gram of vegetation (CFU/g) were evaluated. Imipenem and the cloxacillin-gentamicin association were found to be as effective as cloxacillin in eradicating the microorganisms of the vegetation. Clindamycin in high doses was shown to be a valid alternative. Vancomycin, teicoplanin, rifampin and ciprofloxacin were less effective than cloxacillin. The experimental model seems to be an effective method for evaluating antimicrobial treatments in staphylococcal endocarditis.

[Indexed for MEDLINE]

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