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Pharmacokinetic study demonstrates therapeutic vancomycin penetration into sternal bone in cardiac surgery patients, indicating adequate prophylaxis against major wound pathogens.
Concentrations of vancomycin in sternal bones of 10 patients undergoing cardiac surgery were studied at steady state, 48 h after starting intravenous prophylaxis. A sample of sternal bone was taken before (group I) or after (group II) cardiopulmonary bypass. The mean vancomycin concentrations in sternal bones were not significantly different between the groups and were 9.3 +/- 3.0 micrograms/g. The concentrations of vancomycin in sternal bones were always above the MICs for staphylococci, streptococci, and enterococci.
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Massias et al. (1992) studied this question.
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