Heteroresistance: a concern of increasing clinical significance? |
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| Authors: | M E Falagas G C Makris G Dimopoulos D K Matthaiou |
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| Affiliation: | Alfa Institute of Biomedical Sciences (AIBS), Athens, Greece;, Department of Medicine, Tufts University School of Medicine, Boston, MA, USA;, Department of Medicine, Henry Dunant Hospital;and Department of Critical Care, University Hospital Attikon, Medical School, University of Athens, Athens, Greece |
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| Abstract: | Recent studies have focused on issues related to heteroresistance, including its definition, methods of detection and frequency. Most such studies have reported data concerning infections caused by Staphylococcus aureus, but the clinical significance of heteroresistance is unclear. Six studies have described infections caused by S. aureus strains that were heteroresistant to vancomycin, with two suggesting an association between the emergence of heteroresistance and treatment failure or mortality, and four suggesting no such association. Further studies are required to evaluate the clinical implications of heteroresistance in an era in which rates of antimicrobial resistance are increasing alarmingly worldwide. |
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| Keywords: | Antibiotic resistance clinical implications glycopeptides heteroresistance Staphylococcus aureus vancomycin |
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