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Published on: September 9, 2015
Impact of the Implementation of a Vancomycin Protocol on Trough Serum Vancomycin Concentrations in a Pediatric
Raíssa Queiroz Rezende1, Cícero Armídio Gomes Dias2, Claudia Pires Ricachinevsky3
1Pediatric Intensive Care Unit, Hospital da Criança Santo Antônio, Irmandade Santa Casa de Misericórdia de Porto Alegre, Unidade de Terapia Intensiva Pediátrica, Avenida Independência, 155, Porto Alegre, RS, CEP 90035-074, Brazil. raissaq@gmail.com.
Insights
Implementing a vancomycin protocol in pediatric intensive care improved the achievement of target serum concentrations within five days. This demonstrates the protocol
Area of Science:
- Pediatric Intensive Care Medicine
- Pharmacology
- Infectious Diseases
Background:
- Vancomycin is crucial in pediatric intensive care but challenging to use safely and effectively.
- Optimizing vancomycin therapy is essential for treating serious infections in critically ill children.
Purpose of the Study:
- To evaluate the impact of a clinical practice protocol on vancomycin trough serum concentrations in pediatric intensive care patients.
- To assess if the protocol improved the achievement of target vancomycin levels.
Main Methods:
- A retrospective quasiexperimental study compared patients before and after a 2017 vancomycin protocol implementation.
- The study included pediatric patients (≤18 years) receiving vancomycin for ≥5 days.
- Key metrics included initial dose, target serum levels (15-20 μg/mL), and achievement rates over time.
Main Results:
- The post-protocol group showed a higher, though not statistically significant, initial achievement of target vancomycin levels (21.5% vs. 10.8%).
- However, the proportion of patients achieving target levels within the first five days significantly increased from 52.3% to 73.8% after protocol implementation (p=0.018).
- The protocol also appeared to reduce variability in vancomycin levels between the first and fifth day of treatment.
Conclusions:
- Achieving therapeutic vancomycin trough concentrations in critically ill pediatric patients remains a significant clinical challenge.
- Clinical practice protocols, even without advanced monitoring, can enhance dose adjustment and therapeutic control.
- The study highlights the benefit of structured protocols in optimizing vancomycin use in pediatric intensive care settings.
Background:
Vancomycin is an antibiotic that is widely used in pediatric intensive care, but the safe and effective use of this drug is challenging.
Objective:
This study aimed to assess the impact of a vancomycin protocol on trough serum concentrations.
Methods:
We conducted a retrospective quasiexperimental study in patients aged ≤ 18 years in intensive care who received vancomycin for at least 5 days. Patients were divided into two groups: before and after a protocol implemented in 2017 that suggested an initial vancomycin dose of 60 mg/kg/day, target serum levels of 15-20 μg/mL, and dose adjustments. We compared patient characteristics, target serum level achievement, and vancomycin levels over time.
Results:
Each group contained 65 patients; most were male infants with heart disease as the main reason for hospitalization. Only 29.2% of the patients had pretreatment cultures for bacteria identification recorded, with 1.5% identified as methicillin-resistant Staphylococcus aureus. For the first serum levels, 10.8% of patients in the pre-protocol group and 21.5% in the post-protocol group achieved the 15-20 μg/mL target (p = 0.153); during the first 5 days of treatment, this proportion significantly increased from 52.3 to 73.8% (p = 0.018). We observed a difference between the first and fifth levels: 8.9 μg/mL (95% confidence interval [CI] - 3.1 to 21) pre-protocol and 0.4 μg/mL (95% CI - 6.1 to 6.9) post-protocol (p = 0.175).
Conclusions:
Reaching adequate trough vancomycin concentrations in critically ill pediatric patients remains a challenge, and clinical practice protocols allow better dose adjustment and control even when monitoring technologies are unavailable.
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