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Chloramphenicol for the treatment of vancomycin-resistant enterococcal infections
A H Norris1, J P Reilly, P H Edelstein
1Department of Medicine, University of Pennsylvania Medical Center, Philadelphia, USA.
Abstract:
A retrospective study of patients who received chloramphenicol for the treatment of serious vancomycin-resistant enterococcal infections between 1 January 1993 and 31 August 1993 was conducted at the University of Pennsylvania Medical Center (Philadelphia). Antimicrobial susceptibilities as well as the clinical course of infection, adverse events, and response to therapy of 16 patients were reviewed. Forty-seven percent of enterococcal isolates were susceptible only to chloramphenicol, tetracycline, and nitrofurantoin. Types of infection included bacteremias (n = 7), abscesses (n = 7), and others (n = 5). Of 14 patients for whom a clinical response could be ascertained, eight (57%) showed improvement after treatment. Of 11 patients for whom a microbiological response could be ascertained, eight (73%) had sterile cultures after treatment. No lasting adverse effect related to the drug occurred. In-hospital mortality was 56%, but only one death could be directly attributed to vancomycin-resistant enterococcal infection. Chloramphenicol appears to be a useful and well-tolerated agent for the treatment of serious vancomycin-resistant enterococcal infections.
Insights
Chloramphenicol effectively treated serious vancomycin-resistant enterococcal infections in a retrospective study. The drug was well-tolerated, showing clinical and microbiological improvement in most patients with these difficult-to-treat infections.
Area of Science:
- Infectious Diseases
- Pharmacology
- Clinical Microbiology
Background:
- Vancomycin-resistant enterococci (VRE) present a significant challenge in healthcare settings.
- Limited therapeutic options exist for serious VRE infections.
- Chloramphenicol remains a potential agent for specific VRE infections.
Purpose of the Study:
- To evaluate the efficacy and safety of chloramphenicol for treating serious vancomycin-resistant enterococcal infections.
- To assess clinical and microbiological outcomes in patients treated with chloramphenicol.
- To identify the spectrum of antimicrobial susceptibilities in VRE isolates.
Main Methods:
- Retrospective study design.
- Review of 16 patients treated with chloramphenicol for VRE infections at a single medical center.
- Analysis of antimicrobial susceptibilities, clinical course, adverse events, and treatment response.
Main Results:
- 47% of VRE isolates were susceptible only to chloramphenicol, tetracycline, and nitrofurantoin.
- Clinical improvement was observed in 57% of patients.
- Microbiological cure (sterile cultures) was achieved in 73% of patients.
- No lasting adverse effects related to chloramphenicol were reported.
Conclusions:
- Chloramphenicol is a useful and well-tolerated therapeutic option for serious vancomycin-resistant enterococcal infections.
- The drug demonstrates significant clinical and microbiological efficacy.
- Susceptibility patterns highlight the importance of chloramphenicol in VRE treatment regimens.
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