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Predisposing and bacteriological features of otitis media

Nwokoye, N. N. and Egwari, L. O. (2012) Predisposing and bacteriological features of otitis media. African Journal of Microbiology Research, 6 (3). pp. 520-525. ISSN 1996-0808

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Otitis media is an infectious condition that is more frequent in children. Its management is complex because the etiologies vary as the disease progresses. This study aimed to determine the predisposing factors and the bacterial etiology of otitis media. A total of 378 patients diagnosed with otitis media; comprised acute otitis media (29.4%), otitis media with effusion (32.3%) and chronic otitis media (38.4%). Bacteriological examination was done using aerobic and anaerobic culture methods. Children less than 5 years accounted for 46% of cases. Incidence was more in the rainy season (May-October). Unilateral infection which was more common (82%) was predominantly in the left ear (66.8%). Major predisposing factors to infection were age (19.8%), upper respiratory infection (14.8%), poor hygiene and unorthodox practices (14.8%), adenoid inflammation (8.5%) and trauma (6.1%). Streptococcus pneumoniae (38.1%), Moraxella catarrhalis (19.0%) and Staphylococcus aureus (16.7%) characterized AOM. A paradigm shift was observed in otitis media with effusion, with S. aureus (19.1%) and Bacteroides ureolyticus (14.9%) dominating the flora. Etiologies in chronic otitis media were largely mixed aerobic-anaerobic component of 68.3%; predominant flora being Pseudomonas aeruginosa (14.1%) and P. magnus (13.4%). The paradigm shift is instructive in deciding the line of antibiotic therapy to be instituted.

Item Type: Article
Uncontrolled Keywords: Acute otitis media, aerobic bacteria, anaerobic bacteria, chronic otitis media, otitis media with effusion, poly-etiology, mono-etiology
Subjects: Q Science > QH Natural history > QH301 Biology
Divisions: Faculty of Medicine, Health and Life Sciences > School of Biological Sciences
Depositing User: Mrs Patricia Nwokealisi
Date Deposited: 11 Nov 2014 15:38
Last Modified: 11 Nov 2014 15:38

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