Vancomycin Dosing Assessment in a Tunisian Pediatric Population

Area of Science:

• Pharmacology
• Pediatric Medicine
• Infectious Diseases

Background:

• Vancomycin is a critical antibiotic for gram-positive bacterial infections.
• High interindividual variability necessitates therapeutic drug monitoring, particularly in pediatric patients.
• Validated data for vancomycin monitoring in children is limited.

Purpose of the Study:

• To assess vancomycin plasma concentrations in Tunisian pediatric patients.
• To evaluate the influence of patient age and administration mode on vancomycin levels.
• To identify gaps in current vancomycin prescribing practices for children.

Main Methods:

• Retrospective study at the National Pharmacovigilance Center in Tunis.
• Inclusion of 146 pediatric patients, stratified by age.
• Evaluation of vancomycin levels associated with initial doses, comparing continuous and intermittent infusion.

Main Results:

• Only 11.8% of initial trough concentrations were therapeutic at an average dose of 38 mg/kg/d.
• Continuous infusion achieved therapeutic levels in 29.5% of cases (average dose 44 mg/kg/d).
• Infants and children required higher doses; neonates required lower doses to reach therapeutic ranges.

Conclusions:

• Existing vancomycin prescribing practices in pediatrics lack sufficient clinical validation.
• Current monitoring strategies may be inadequate for optimizing pediatric vancomycin therapy.
• Personalized dosing, such as Area Under the Curve (AUC)-guided monitoring, is recommended for improved outcomes.