Bacterial agents causing chronic suppurative otitis media - PubMed (original) (raw)

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Bacterial agents causing chronic suppurative otitis media

C L Obi et al. East Afr Med J. 1995 Jun.

Abstract

Ear swabs from 350 patients with chronic otitis media attending different orthorhinolaryngological clinics at different hospitals and health centres in Benin City and Ekpoma in Edo State were screened for the presence of bacterial agents of chronic otitis media. Results revealed the presence of 19 different species indicating polymicrobial infections. Species isolated comprised Staphylococcus aureus (33.6%), Pseudomonas aeruginosa (19.3%), Proteus mirabilis (17%), Alcaligenes faecalis (6.2%) and Klebsiella aerogenes (4.3%). Others included Escherichia coli (3.3%), Proteus rettgeri (2.8%), and Staphylococcus epidermidis (2.2%), Klebsiella pneumoniae, Proteus vulgaris, Acinetobacter spp, Proteus morgani, Haemophilus influenzae, Providencia spp, Streptococcus pyogenes, Streptococcus pneumoniae, Streptococcus faecalis, non-haemolytic streptococci and Diphotheroids, each accounted for less than 2% of isolates. The study also showed a higher prevalence of chronic otitis media among males (55.7%) than females (44.3%). Cases of chronic otitis media were highest among the age groups (0-5 years) with a prevalence rate of 50% and least among the 6-10 year age group with a prevalence rate of 14.9%. Antibiogram of isolates revealed marked sensitivities (over 90% of the isolates) to ciproxin, tarivid, rocephin and fortum whereas over 70% were resistant to penicillin and ampicillin. Results have indicated that Staphylococcus aureus, Pseudomonas aeruginosa and Proteus mirabilis are leading bacterial agents of otitis media and highlights the high risk involved in the use of penicillin, ampicillin, streptomycin, tetracycline, chloramphenicol, erythromycin, cloxacillin and septrin in the management of chronic otitis media in our locality.

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