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Microbiology of recurrent and chronic otitis media with effusion
Abstract:
A study was conducted of 274 children who had recurrent acute or chronic otitis media with effusion. Forty-five percent of the ears with effusion were found to contain bacteria, and 11% contained bacteria that were "probable pathogens" (S. pneumoniae, H. influenzae, and S. pyogenes). Bacteria were also found in 40% of the ears without effusions. The type of organism found did not vary with the age of the patient studied or the season of the year. The significance of these bacteria in the etiology of recurrent acute or chronic otitis media with effusion remains to be demonstrated.
Insights
Bacteria were found in nearly half of children with recurrent otitis media with effusion, including probable pathogens. Their role in causing middle ear infections needs further study.
Area of Science:
- Pediatrics
- Microbiology
- Otolaryngology
Background:
- Recurrent otitis media with effusion is common in children.
- Bacterial presence in middle ear effusions is a known factor in otitis media.
- Identifying pathogens is crucial for understanding disease etiology.
Purpose of the Study:
- To investigate the prevalence and types of bacteria in children with recurrent otitis media with effusion.
- To determine if bacterial presence differs between ears with and without effusion.
- To explore potential correlations between bacterial findings, patient age, and season.
Main Methods:
- A study involving 274 children with recurrent acute or chronic otitis media with effusion.
- Bacteriological analysis of middle ear fluid from affected ears.
- Analysis of middle ear fluid from ears without effusion for comparison.
- Statistical analysis to assess variations based on age and season.
Main Results:
- Bacteria were detected in 45% of ears with effusion.
- Probable pathogens (S. pneumoniae, H. influenzae, S. pyogenes) were found in 11% of effusions.
- Bacteria were also present in 40% of ears without effusion.
- No significant variation in organism type was observed with patient age or season.
Conclusions:
- Bacteria are frequently found in children with recurrent otitis media with effusion.
- A significant proportion of these bacteria are considered probable pathogens.
- The etiological significance of these bacteria in recurrent otitis media with effusion requires further investigation.