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Published on: March 3, 2023
A retrospective drug utilization evaluation of vancomycin usage in paediatric patients
1Department of Pharmacy, KK Women's and Children's Hospital, Singapore.
Insights
This study assessed vancomycin use in children, finding dosing generally appropriate but highlighting issues with monitoring serum levels and indications. Optimizing vancomycin prescribing practices is crucial for patient safety and effective treatment.
Area of Science:
- Pharmacology
- Clinical Pharmacy
- Pediatric Infectious Diseases
Background:
- Vancomycin is a critical antibiotic for treating serious Gram-positive bacterial infections in pediatric patients.
- Appropriate vancomycin usage is essential to ensure efficacy and minimize the risk of adverse drug reactions (ADRs) and antimicrobial resistance.
- Evaluating prescribing practices helps identify areas for improvement in pediatric vancomycin therapy.
Purpose of the Study:
- To assess the appropriateness of vancomycin prescribing in pediatric patients at a major children's hospital.
- To identify potential issues in vancomycin usage patterns that may require intervention.
- To optimize vancomycin utilization in pediatric care.
Main Methods:
- Retrospective drug utilization evaluation of pediatric patients receiving intravenous vancomycin over a one-year period.
- Analysis of vancomycin indication consistency with guidelines, dosing, microbiological data, serum drug level monitoring, renal function, clinical outcomes, and ADRs.
- Review of 96 patient cases for comprehensive assessment of vancomycin prescribing practices.
Main Results:
- 64.6% of vancomycin courses had appropriate indications, and 89.6% used consistent dosing regimens.
- Therapeutic vancomycin serum levels were frequently outside the recommended range (46/56 cases with paired levels).
- Adverse drug reactions (ADRs) were documented in 19.8% of cases, with 60.4% receiving concurrent nephrotoxic drugs.
Conclusions:
- While vancomycin dosing regimens were largely guideline-consistent, significant issues were noted in monitoring serum drug levels.
- Inappropriate indications and poor recording of administration details were also identified as problems.
- Findings underscore the need for strategies to optimize vancomycin prescribing and monitoring in pediatric patients.
Objective:
To evaluate the appropriateness of use of vancomycin in paediatric patients at KK Women's and Children's Hospital, the major paediatric hospital in Singapore to identify potential problems in prescribing practices that may necessitate intervention to optimize vancomycin usage.
Methods:
A retrospective drug utilization evaluation was performed for paediatric patients who received intravenous vancomycin from 1 June 1998 to 31 June 1999. The outcome measures were consistency of vancomycin indication with recommended guidelines, dosing regimens, microbiological data, monitoring of serum drug levels, renal function, clinical outcomes and adverse drug reactions (ADRs).
Results:
A total of 96 cases was available for evaluation. Sixty-two (64.6%) courses of vancomycin were consistent with guidelines for indication of therapy. Eighty-six (89.6%) of the dosing regimen were consistent. All infusion times that were recorded (56.3%) were consistent with criteria. Of the patients treated with vancomycin for more than 1 day, peak and/or trough serum vancomycin levels were ordered for 70 cases. Of the 56 cases with paired levels ordered, 46 cases had at least one level that fell outside the therapeutic range. Nineteen (19.8%) cases of ADRs were documented. Fifty-eight (60.4%) cases received concurrent nephrotoxic drugs. However, a substantial portion of vancomycin courses were apparently not prescribed for appropriate indications, and there was poor recording of vancomycin administration information and sampling time.
Conclusion:
The majority of dosing regimens of vancomycin was consistent with guideline criteria. The most evident problem was the sub-optimal use of the monitoring of vancomycin serum levels. The information derived from this study may be used as a for further study and for the development of strategies for optimize vancomycin usage.
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