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Published on: April 2, 2014
Pragmatic scoring system for pharyngitis in low-resource settings
Laure Joachim1, Dioclecio Campos, Pierre R Smeesters
1Department of Pediatrics, Queen Fabiola Unversity Children's Hospital, Institute for Molecular Biology and Medicine, Free University of Brussels, Brussels, Belgium.
Insights
A new clinical scoring system can significantly reduce unnecessary antibiotic prescriptions for childhood pharyngitis in low-resource settings. This approach improves antibiotic stewardship by identifying infections not caused by group A Streptococcus (GAS).
Area of Science:
- Pediatrics
- Infectious Diseases
- Clinical Decision Support
Background:
- Pharyngitis is a common childhood illness often treated with antibiotics.
- Over-prescription of antimicrobials contributes to antimicrobial resistance, particularly in low-resource settings.
- Effective clinical tools are needed to guide appropriate antibiotic use for pharyngitis.
Purpose of the Study:
- To develop and validate a simple, safe, and pragmatic clinical scoring system for pharyngitis.
- To reduce unnecessary antimicrobial treatment in resource-limited environments.
- To improve antibiotic stewardship in pediatric care.
Main Methods:
- Prospective enrollment of children with pharyngitis in Brazil.
- Clinicians used a new scoring system and rapid antigen detection tests (RADT).
- Receiver operating characteristic curve analysis assessed the clinical decision rule's performance against RADT and throat cultures for group A Streptococcus (GAS).
Main Results:
- The study included 576 children, with 400 having non-GAS pharyngitis.
- The new clinical decision rule demonstrated 88% specificity for non-GAS infections.
- Implementing this rule could lead to a 35% to 55% reduction in antibiotic prescriptions.
Conclusions:
- The developed clinical decision rule effectively identifies children who do not require antibiotic treatment for pharyngitis.
- This tool offers a significant opportunity to decrease unnecessary antibiotic use in low-resource settings.
- Improved diagnostic strategies are crucial for combating antimicrobial resistance.
Objective:
Our objective was to develop an easy, safe, pragmatic, clinical scoring system that would allow decreases in unnecessary treatment with antimicrobial agents in low-resource settings.
Methods:
Children with pharyngitis were enrolled prospectively from 2 public hospitals and 1 medical unit in Brasilia, Brazil, over 17 months. Attending clinicians completed a questionnaire and a previously published scoring system for pharyngitis before performing throat swabs and group A streptococcus (GAS) rapid antigen-detection tests. Data from this study were added to those collected in 2004, to assess the performance of each item of the scoring system. The performance of the new clinical decision rule was determined with a receiver operating characteristic curve. The final outcome of the model was assessed on the basis of sensitivity, specificity, and positive likelihood ratio for non-GAS infections with the clinical approach, compared with throat culture or rapid antigen-detection test results.
Results:
A total of 576 children were included, among whom 400 had non-GAS pharyngitis. The use of our new clinical decision rule would allow for 35% to 55% antibiotic reduction, with 88% specificity.
Conclusions:
This clinical decision rule could reduce unnecessary antibiotic treatment significantly in low-resource settings.
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