Related Experiment Videos
Bacteriology of chronic suppurative otitis media
1Department of Otolaryngology, University of Erciyes School of Medicine, Kaysen, Turkey.
The Annals of Otology, Rhinology, and Laryngology
|October 1, 1994
Summary
Chronic otitis media (COM) often involves polymicrobial infections. This study found that COM exudate frequently contains both aerobic and anaerobic bacteria, highlighting the need for comprehensive culturing in treating this condition.
Area of Science:
- Microbiology
- Otolaryngology
- Infectious Diseases
Background:
- Chronic otitis media (COM) is a persistent middle ear infection.
- Understanding the microbial etiology of COM is crucial for effective treatment.
- Polymicrobial infections are suspected in COM, involving both aerobic and anaerobic bacteria.
Purpose of the Study:
- To investigate the aerobic and anaerobic bacterial flora in the middle ear exudate of patients with COM.
- To identify common bacterial pathogens associated with COM.
Main Methods:
- Aspiration of middle ear exudate through an open perforation in 183 patients diagnosed with COM.
- Aerobic and anaerobic culture of the aspirated pus.
- Identification of isolated bacterial species.
Main Results:
- A high prevalence of polymicrobial infections was observed, with 50% of patients harboring both aerobic and anaerobic bacteria.
- Aerobic bacteria were isolated from 39% of patients, and anaerobic bacteria from 11%.
- Common aerobic isolates included Pseudomonas aeruginosa (68 patients), Staphylococcus aureus, and Klebsiella pneumoniae. Anaerobic isolates included Bacteroides species (63 isolates).
Conclusions:
- COM exudate frequently contains a mix of aerobic and anaerobic bacteria.
- Comprehensive aerobic and anaerobic culturing is essential for accurate diagnosis and targeted therapy in COM.
- Pseudomonas aeruginosa is a predominant aerobic pathogen in COM, while Bacteroides species are significant anaerobic isolates.