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  • Title: Adenoid Vegetations - Reservoir of Bacteria for Chronic Otitis Media with Effusion and Chronic Rhinosinusitis.
    Author: Davcheva-Chakar M, Kaftandzhieva A, Zafirovska B.
    Journal: Pril (Makedon Akad Nauk Umet Odd Med Nauki); 2015; 36(3):71-6. PubMed ID: 27442398.
    Abstract:
    INTRODUCTION: Otitis media and rhinosinusitis are commonly encountered illnesses in pediatric population. Literature reports have documented the association between the occurrence of these two conditions and even their almost identical microbiological findings. Until recently, the key factor in the association of these two conditions was considered to be the hypertrophic adenoid tissue, but within the past few years there have been evidences in the literature about the presence of bacterial biofilms on the adenoids suggesting biofilms to be also responsible for both conditions, chronic otitis media with effusion and chronic rhinosinusitis. AIM: The aim of this study was to make a microbiological analysis of the adenoid tissue specimens taken from patients with chronic otitis media with effusion and chronic or recurrent rhinosinusitis and to determine their potential for biofilms formation. METHODS: After the surgical intervention, adenoidectomy, microbiological evaluation and analysis of the adenoid tissue specimens taken from 20 patients were made. Having in mind the disease history, chronic otitis media with effusion was diagnosed in all 20 patients and chronic rhinosinusitis in 9 patients. RESULTS: The results obtained from the microbiological analyses showed many potentially pathogenic bacteria in the adenoids that were almost identical with the most common organisms incorporated in the etiopathogenesis of both conditions, in chronic otitis media with effusion and in chronic rhinosinusitis. In 7 (35%) patients Haemophylus influenzae was isolated, in 6 (30%) Streptococcus pneumoniae, in 4 (20%) Moraxella catаrrhalis, in 2 (10%) patients Staphylococcus aureus and in 1 (5%) patient Streptococcus pyogenes - group A was isolated. One bacterium was isolated from all adenoid vegetations, except in one case when two bacteria (Haemophylus influenzae and Staphylococcus aureus) were concurrently isolated. CONCLUSION: Our results have shown that the key role in adenoid vegetations in chronic otitis media with effusion and chronic rhinosinusitis is not only the mechanism of rhinopharyngeal obstruction, but also the presence of bacterial strains with a large potential for formation of biofilms adhered to their surface, especially in cases with symptoms of chronic otitis media with effusion and chronic rhinosinusitis that were resistant to antibiotic therapy.
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