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Otitis media with effusion. Cytological and microbiological correlates.
Archives of Otolaryngology (Chicago, Ill. : 1960)
|July 1, 1979
Summary
Cytologic analysis of middle ear effusions in children with otitis media with effusion (OME) reveals distinct cell profiles. Higher neutrophil counts in effusions with pathogenic bacteria suggest bacterial involvement in OME.
Area of Science:
- Otolaryngology
- Pediatric Medicine
- Cytopathology
Background:
- Otitis media with effusion (OME) is a common pediatric condition.
- Understanding the cellular and bacterial components of middle ear effusions is crucial for diagnosis and treatment.
Purpose of the Study:
- To quantitatively analyze the cytologic profile of middle ear effusions in children with OME.
- To correlate cytologic findings with bacteriological results.
- To investigate the role of bacteria in the pathogenesis of OME.
Main Methods:
- A quantitative cytologic study of 83 middle ear effusions using cytocentrifuge-prepared smears.
- Confirmation of cell identification via electron microscopy.
- Correlation of cytologic data with bacterial culture findings.
Main Results:
- Common cell types included neutrophilic leukocytes, lymphocytes, and macrophages.
- Neutrophil counts were significantly higher (P < .01) in bacteria-positive effusions compared to culture-negative ones.
- Lymphocytes predominated in culture-negative effusions.
Conclusions:
- The cytologic profile of middle ear effusions correlates well with bacterial culture results.
- Elevated neutrophil counts in OME effusions are associated with pathogenic bacteria.
- Findings support the role of bacteria in the pathogenesis of many OME cases.