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Published on: February 23, 2014
Complicated parapneumonic effusion in Belgian children: increased occurrence before routine pneumococcal vaccine
Tine Van Ackere1, Marijke Proesmans, Francois Vermeulen
1Department of Pediatrics, University Hospital of Leuven, Herestraat 49, 3000, Leuven, Belgium.
Complicated parapneumonic effusions in children increased significantly in Belgium before routine pneumococcal vaccination. This trend, observed later than in the UK and US, indicated more severe disease in recent cases.
Area of Science:
- Pediatric Infectious Diseases
- Pulmonology
- Epidemiology
Background:
- Complicated parapneumonic effusions (CPPE) and empyema in children are increasing in the UK and USA.
- Data from mainland Europe regarding CPPE incidence in pediatric populations are limited.
Purpose of the Study:
- To investigate the incidence of CPPE and empyema in children at the University Hospital of Leuven from 1993 to 2005.
- To analyze trends and clinical characteristics of pediatric CPPE during a period preceding pneumococcal conjugate vaccination implementation.
Main Methods:
- Retrospective analysis of pediatric patients admitted with CPPE or empyema between 1993 and 2005.
- Calculation of incidence rates per 100,000 hospital admissions.
- Comparison of clinical and laboratory parameters between early and late cohorts.
Main Results:
- Sixty-eight cases of pediatric CPPE/empyema were identified.
- Incidence increased from 20-55 to 120-130 per 100,000 admissions by 2005.
- The late cohort (from 2003) showed significantly higher pleural LDH, higher pleural white blood cell counts, lower pleural glucose, and longer hospitalization, suggesting more severe disease.
Conclusions:
- The incidence of complicated parapneumonic effusion in Belgian children rose significantly before the introduction of pneumococcal conjugate vaccination.
- This increase, particularly pronounced from 2003 onwards, occurred later than reported in the UK and US but was of similar magnitude.
- Clinical indicators suggest a trend towards more severe disease in the later cohort of patients.
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