期刊
JOURNAL OF CHEMOTHERAPY
卷 28, 期 4, 页码 297-303出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/1120009X.2016.1143261
关键词
Carbapenem resistant; Klebsiella pneumoniae; Acinetobacter baumannii; Synergy; Sulbactam; Meropenem; Colistin; OXA-48 like; NDM
资金
- Wockhardt India Ltd.
Treatment of infections with carbapenem-resistant Gram negative organism is a major challenge especially among intensive care patients. Combinations of sulbactam, meropenem and colistin was studied for its synergistic activity against 100 invasive isolates of carbapenem-resistant Klebsiella pneumoniae and Acinetobacter baumannii-calcoaceticus complex by checkerboard assay and time kill assay (TKA). In addition, presence of carbapenemase production was determined by multiplex PCR. Time kill assay detected more synergy than checkerboard assay. Good bactericidal activity of 70-100% was noted with the combinations tested. Among K. pneumoniae, isolates producing NDM carbapenemase alone showed significantly more synergy than isolates producing OXA-48-like carbapenemases. In treatment of infection with carbapenem-resistant organisms, the site of infection and the type of carbapenemase produced may help to determine the most effective combination of antimicrobials.
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