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Published on: January 22, 2021
Clinical characteristics of linezolid-resistant Staphylococcus aureus infections
Michael J Peeters1, Juan C Sarria
1School of Pharmacy, Texas Tech University Health Sciences Center, Lubbock, 77555, USA.
Abstract:
Case reports have previously identified linezolid resistance in 6 clinical isolates of Staphylococcus aureus. We describe an additional case and discuss clinical characteristics of these patients. Invasive procedures, deep organ involvement, and presence of foreign material were predominant in these cases. Resistance followed prolonged (>21 days) linezolid therapy in most cases. The development of resistance to linezolid should be taken into account when selecting this drug as a therapeutic option.
Insights
Linezolid resistance in Staphylococcus aureus is a growing concern. Prolonged therapy (>21 days) often precedes resistance, necessitating careful consideration of this antibiotic option.
Area of Science:
- Microbiology
- Infectious Diseases
- Antimicrobial Resistance
Background:
- Linezolid is a crucial antibiotic for treating serious Gram-positive bacterial infections.
- Previous case reports documented linezolid resistance in Staphylococcus aureus.
Observation:
- This report details an additional case of linezolid-resistant Staphylococcus aureus.
- Patients often had invasive procedures, deep organ involvement, or foreign materials.
Findings:
- Linezolid resistance developed after prolonged treatment (over 21 days) in most documented cases.
- Clinical characteristics associated with resistance were identified.
Implications:
- Clinicians must consider the risk of linezolid resistance when prescribing this antibiotic.
- Further research into mechanisms and management of linezolid resistance is warranted.
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