PubMed · 873880
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J M Broughall, D S Reeves. 1977. Gentamicin assay.. https://doi.org/10.1093/jac%2F3.3.287
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Increasing rates of congenital syphilis have been reported in recent years despite the availability of adequate therapy. In our perinatal-neonatal center, approximately 1.5% of newborns have reactive serologic tests for syphilis. Untreated or partly treated maternal syphilis can adversely affect neonatal outcome since the treponeme can cross the placenta at any time during pregnancy. As a result of hematogenous placental transmission, neonatal manifestations are usually systemic and similar to the secondary stage of syphilis, and include hepatosplenomegaly, jaundice, neurosyphilis, and skeletal changes. A case of early congenital syphilis in an extremely premature infant with primary skeletal involvement is presented.
Bactericidal activity of gentamicin against 4 strains of Staphylococcus aureus was investigated in vitro using Mueller-Hinton broth (MH) and surgical wound fluid (WF) as test media. 6 concentrations of gentamicin were tested ranging from 1-1024 micrograms/mL. During the first hour of incubation, there was a marked concentration-dependent kill rate, approximately 3 x 10(3) times in WF and 10(2) times in MH. After the first hour of incubation, the kill rate was independent of the concentration in both media. Our study questions the benefit of the prolonged and high wound concentrations of gentamicin obtained after application of gentamicin-containing PMMA.