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Risk of Infective Endocarditis in Pediatric Staphylococcal Bacteremia: A 20-Year Cohort Study
Apisara Pakotiprapha1, Paweena Chungsomprasong, Chodchanok Vijarnsorn
1From the Division of Pediatric Cardiology, Department of Pediatrics, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand.
Staphylococcus aureus endocarditis (SAE) affects 8.8% of pediatric S. aureus bacteremia (SAB) cases. Congenital heart disease, malnutrition, and persistent bacteremia are key predictors, aiding early risk identification in children.
Area of Science:
- Pediatric Infectious Diseases
- Cardiology
- Clinical Microbiology
Background:
- Staphylococcus aureus endocarditis (SAE) prevalence in pediatric S. aureus bacteremia (SAB) is variable and less understood than in adults.
- Early identification of SAE risk factors in children is crucial for timely intervention.
Purpose of the Study:
- To determine the prevalence of SAE in pediatric patients with SAB.
- To identify clinical risk factors associated with SAE in this population.
Main Methods:
- Retrospective analysis of pediatric patients (0-18 years) with SAB from 2003-2023.
- Diagnosis of SAE based on modified Duke criteria and 2023 ESC guidelines.
- Statistical analysis to identify associated clinical risk factors.
Main Results:
- SAE was diagnosed in 8.8% (15/171) of pediatric SAB cases.
- Congenital heart disease (P=0.02), protein-energy malnutrition (PEM) (P=0.04), and >2 positive blood cultures (P=0.001) were significant risk factors.
- Immunocompromised status showed a reduced risk (P<0.001); both SAB and SAE correlated with longer hospitalization and higher mortality.
Conclusions:
- SAE occurs in 8.8% of pediatric SAB cases, with specific clinical predictors identified.
- Congenital heart disease, PEM, and persistent bacteremia are key predictors for SAE in children.
- These factors can guide early risk assessment and management decisions, especially when echocardiography is limited.
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