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Published on: February 23, 2014
Parapneumonic empyema in children before the era of pneumococcal vaccination
1Paediatric Research Centre, Tampere University and University Hospital, Tampere, Finland.
Insights
The incidence of childhood parapneumonic empyema has increased, with Streptococcus pneumoniae being a common cause. Further monitoring is needed to assess the impact of pneumococcal vaccination on empyema rates.
Area of Science:
- Pediatric infectious diseases
- Respiratory medicine
- Epidemiology
Background:
- Paediatric empyema incidence has risen globally over the past two decades.
- Parapneumonic empyema is a significant complication of childhood pneumonia.
Purpose of the Study:
- To investigate the incidence, causes, and clinical features of childhood parapneumonic empyema.
- To analyze trends in paediatric empyema over an 18-year period.
Main Methods:
- Retrospective review of hospital charts for 21 paediatric patients diagnosed with parapneumonic empyema.
- Analysis of patient data from a university hospital serving a population of 84,000 children between 1991 and 2009.
Main Results:
- Annual incidence of parapneumonic empyema fluctuated, with an overall increase observed from 1991-2009.
- Bacterial aetiology was identified in 52% of cases, with Streptococcus pneumoniae being the most common pathogen (45% of bacterial cases).
- Clinical and laboratory findings were similar between patients with and without pleural effusion on admission; persistent fever and high CRP levels indicated empyema development during hospitalization.
Conclusions:
- Childhood parapneumonic empyema incidence increased between 1991 and 2009, with Streptococcus pneumoniae as a primary cause.
- The long-term impact of the pneumococcal vaccination program, implemented in 2010, on empyema incidence requires ongoing surveillance.
Background:
During the past two decades, the incidence of paediatric empyema has increased in many countries.
Purpose:
The aim of this retrospective hospital chart review was to evaluate the incidence, aetiology and clinical and laboratory characteristics of parapneumonic empyema in children.
Subjects And Methods:
Twenty-one patients were admitted to a university hospital from the area with a population of 84,000 children in 1991-2009.
Results:
The annual incidence of parapneumonic empyema was 1.6/100,000 children in 1991-1998, 0.2/100,000 children in 1999-2005 and 2.7/100,000 children in 2006-2009. Bacterial aetiology was identified in 52% of the cases, and pneumococcus caused 45% of the cases with bacterial aetiology detected. The clinical and laboratory findings in children with and without pleural effusion on admission were surprisingly similar. The development of empyema in hospital during antibiotic therapy was associated with persistent fever and serum C-reactive protein (CRP) >200 mg/L for 48 h after admission.
Conclusion:
The incidence of parapneumonic empyema in children fluctuated but in the long run, increased in 1991-2009. Pneumococcus caused half of the cases with bacterial diagnosis available. Since 2010, pneumococcal vaccination has belonged to the general vaccination programme, and the effect on the incidence of empyema remains to be seen.
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