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Published on: March 3, 2023
[Optimized clinical use of vancomycin, a prospective observational study in a Paris teaching hospital]
F Taieb1, A Le Monnier, E Bille
1Service de microbiologie - hygiène hospitalière, université Paris Descartes, CHU Necker-Enfants-Malades, AP-HP, France; Université Paris Descartes, CHU Necker-Enfants-Malades, AP-HP, équipe mobile d'infectiologie, France.
Introduction:
Vancomycin is still the cornerstone of antibiotic therapy for patients with suspected or proven invasive methicillin resistant Staphylococcus aureus infections. However, clinical and pharmacodynamic studies underline that appropriate doses depend on the infection site, the patient's weight, his renal function, and the bacterial susceptibility.
Objective And Method:
In this prospective study made in a Paris teaching hospital, our two goals were to describe the modalities of infusion and serum concentration obtained during therapy, in our pediatrics and adults population.
Results:
In our hospital, vancomycin was administered every eight hours in 83 % (97/102) of the cases and the doses used were 30 mg/kg per day in 67 % of cases (68/102). Serum trough levels reached 15 mcg/ml and 20 mcg/ml in 36 % and 18 % of cases respectively. Moreover, despite adequate doses, trough levels of 15 mcg/ml were obtained in only 40 % of cases.
Conclusion:
Vancomycin infusion use could be optimized, by defining optimal serum concentrations and monitoring made by a mobile team of infectious diseases specialists.
Insights
Optimizing vancomycin therapy is crucial for invasive methicillin-resistant Staphylococcus aureus infections. This study found that current dosing and infusion methods often fail to achieve target serum concentrations, suggesting a need for improved monitoring and individualized treatment strategies.
Area of Science:
- Pharmacology
- Infectious Diseases
- Clinical Pharmacy
Context:
- Vancomycin is a critical antibiotic for invasive methicillin-resistant Staphylococcus aureus (MRSA) infections.
- Achieving therapeutic vancomycin serum concentrations is complex, influenced by infection site, patient weight, renal function, and bacterial susceptibility.
Purpose:
- To prospectively evaluate vancomycin infusion methods and resulting serum concentrations in pediatric and adult patients.
- To identify potential areas for optimizing vancomycin therapy in a clinical setting.
Summary:
- Vancomycin was administered every eight hours in 83% of cases, with 67% receiving 30 mg/kg per day.
- Therapeutic serum trough levels (15-20 mcg/ml) were achieved in only 36% and 18% of patients, respectively.
- Even with seemingly adequate doses, only 40% of patients reached a trough level of 15 mcg/ml.
Impact:
- Findings suggest current vancomycin dosing and infusion protocols may be suboptimal for achieving therapeutic targets.
- Optimizing vancomycin use could involve defining ideal serum concentrations and implementing enhanced monitoring by infectious disease specialists.
- Improved vancomycin management can enhance treatment efficacy and potentially reduce the development of antibiotic resistance.
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