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What are the leading causative pathogens in acute otitis media with tympanic membrane perforation?
Nuntigar Sonsuwan1, Patcharin Watcharinyanon2, Kittisak Sawanyawisuth3
1Department of Otolaryngology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand.
Objectives:
Acute otitis media (AOM) is a common infectious disease in children. Data regarding the distribution of causative pathogens are not universal. Tympanic perforation due to AOM may occur in 5-30% of AOM patients. The causative pathogens for AOM with tympanic perforation are limited.
Methods:
This was a prospective study conducted at the Department of Otolaryngology, Faculty of Medicine, Chiang Mai University, Thailand. All consecutive children diagnosed as having AOM with tympanic perforation were enrolled. The age of the eligible patients was between 3 months and 5 years. Pus from the middle ear of each patient was swabbed and tested for culture/sensitivity.
Results:
There were 40 eligible patients diagnosed with AOM with tympanic perforation in this study. The mean age of all patients was 24.3 months and the patients were predominantly male (26 male; 65.0%). None of these patients received S. pneumoniae or H. influenzae vaccination. All specimens were culture positive (100%) and 13 organisms were identified. There were 53 identified pathogens; the most common pathogen was H. influenzae (19 times or 35.8%), followed by Staphylococcus aureus (14 times or 26.4%). H. influenzae was 100% sensitive to chloramphenicol, amoxicilllin/clavulanic acid, cefotaxime, and ciprofloxacin, while S. aureus was also 100% sensitive to oxacillin, vancomycin, and fusidic acid.
Conclusions:
The two most common pathogens for AOM with tympanic perforation were H. influenzae and Staphylococcus aureus. Both pathogens were mostly sensitive to antibiotics.
Insights
The most common causes of acute otitis media with tympanic perforation in children are Haemophilus influenzae and Staphylococcus aureus. These bacteria showed high sensitivity to common antibiotics, guiding effective treatment strategies.
Area of Science:
- Pediatrics
- Infectious Diseases
- Otolaryngology
Background:
- Acute otitis media (AOM) is a frequent childhood infection.
- Tympanic perforation occurs in 5-30% of AOM cases.
- Causative pathogens for AOM with tympanic perforation require further characterization.
Purpose of the Study:
- To identify the primary bacterial pathogens responsible for AOM with tympanic perforation in children.
- To determine the antibiotic sensitivity patterns of these identified pathogens.
Main Methods:
- A prospective study enrolled 40 children (3 months to 5 years) with AOM and tympanic perforation.
- Middle ear pus samples were collected for culture and sensitivity testing.
- Patients had not received Streptococcus pneumoniae or Haemophilus influenzae vaccinations.
Main Results:
- All samples (100%) yielded positive cultures, identifying 13 organisms and 53 pathogens.
- Haemophilus influenzae (35.8%) was the most frequent pathogen, followed by Staphylococcus aureus (26.4%).
- Haemophilus influenzae showed 100% sensitivity to chloramphenicol, amoxicillin/clavulanic acid, cefotaxime, and ciprofloxacin. Staphylococcus aureus was 100% sensitive to oxacillin, vancomycin, and fusidic acid.
Conclusions:
- Haemophilus influenzae and Staphylococcus aureus are the predominant pathogens in pediatric AOM with tympanic perforation.
- These common pathogens demonstrate significant sensitivity to various antibiotics, supporting targeted therapeutic approaches.
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