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  • Title: The relationship between chronic otitis media with effusion and surface and deep flora of hypertrophic adenoids.
    Author: Almac A, Elicora SS, Yumuk Z, Dundar V, Willke A.
    Journal: Int J Pediatr Otorhinolaryngol; 2009 Oct; 73(10):1438-40. PubMed ID: 19692130.
    Abstract:
    OBJECTIVE: The relationship between bacterial flora of the adenoids and middle ear problems is unclear. In this study, superficial and deep aerobic and anaerobic bacterial flora of adenoid tissues were compared in children with and without chronic otitis media with effusion (cOME). PATIENTS AND METHODS: Between 2004 and 2007, family members of children (ages 1-14 years) who were scheduled to undergo adenoidectomy were approached for participation in the study. Of the 180 patients who gave consent, 107 (59%) did not have cOME (Group I), whereas 73 (41%) had had a tympanostomy tube previously due to cOME (Group II). Prior to adenoidectomy, swabs were taken from the surface of the adenoids, and samples of deep tissue for culture were obtained from curetted tissue. All samples were cultured aerobically and anaerobically. Growth of 10 of the bacteria most commonly cultured were evaluated: 5 classified as normal flora (coagulase-negative staphylococci, α-hemolytic streptococci, Neisseria spp., Prevotella spp. ve Peptostreptococci) and 5 potential pathogens (S. aureus, S. pyogenes, S. pneumoniae, H. influenzae ve Moraxella spp.). RESULTS: Isolation rates of potential pathogens including S. pneumoniae,H. influenzae and Moraxella spp. from surface and deep cultures of adenoids were between 5 and 15% (no significant differences between those with and without cOME). While S. aureus was the most frequently isolated bacteria (26%) in children with cOME (Group II), the incidence of S. pyogenes as a potential pathogen was only 1% (p<0.05) in Group II and the anaerobic Prevotella spp. were significantly less common (p<0.05) in children with cOME (Group II). CONCLUSION: Potential pathogens of middle ear colonized in adenoid tissue may not be significant factor for the etiopathogenesis of cOME. Bacterial interference mechanisms may play an important role in pathogenesis of cOME because of Prevotella spp. showed statistically significant decrease children with cOME.
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