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Microbiology of chronic suppurative otitis media with cholesteatoma
1Department of Otorhinolaryngology, King Abdulaziz University Hospital, PO Box 245, Riyadh 11411, Kingdom of Saudi Arabia.
Objective:
To report the result of causative organisms in chronic suppurative otitis media with cholesteatoma.
Methods:
Eighty eight patients clinically diagnosed with chronic suppurative otitis media with cholesteatoma, and confirmed intra-operatively and by histological examination were pre-operatively studied for the causative bacteria and fungi.
Results:
A single isolate was obtained in 42 (48%) cases, no growth was isolated in 11 (12.5%) cases. Most common bacteria isolated were, Pseudomonas aeruginosa in 51%, Staphylococcus aureus in 31%, and Proteus species in 17%. Among the 15 fungal isolates, 9 (10%) were Aspergillus species and the remaining 6 (7%) were Candida albicans.
Conclusion:
Conventional ear swabs taken under direct vision using an operating microscope are reliable in establishing the microbiological profile of chronic suppurative otitis media.
Insights
This study identified common bacteria and fungi causing chronic suppurative otitis media with cholesteatoma. Ear swab cultures under microscopy reliably determine the microbiological profile for effective treatment.
Area of Science:
- Otolaryngology
- Microbiology
- Infectious Diseases
Background:
- Chronic suppurative otitis media with cholesteatoma is a persistent ear infection.
- Identifying causative organisms is crucial for effective management.
Purpose of the Study:
- To identify the bacteria and fungi responsible for chronic suppurative otitis media with cholesteatoma.
- To evaluate the reliability of pre-operative ear swab cultures.
Main Methods:
- Eighty-eight patients with chronic suppurative otitis media and cholesteatoma underwent pre-operative microbiological study.
- Cultures were obtained via ear swabs under direct vision with an operating microscope.
- Intra-operative and histological examinations confirmed diagnoses.
Main Results:
- A single organism was isolated in 48% of cases; no growth in 12.5%.
- The most frequent bacteria were Pseudomonas aeruginosa (51%), Staphylococcus aureus (31%), and Proteus species (17%).
- Fungal isolates included Aspergillus species (10%) and Candida albicans (7%).
Conclusions:
- Pre-operative ear swabs collected under direct vision with an operating microscope are reliable for determining the microbiological profile.
- This method aids in guiding appropriate treatment for chronic suppurative otitis media.