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Published on: March 17, 2014
Persistent purulent otitis media
Abstract:
Of 429 children with acute otitis media who returned for follow-up evaluation, 49 (11%) were unresponsive to a 10- to 14-day course of ampicillin, amoxicillin, or erythromycin/sulfisoxazole. Patients with persistent purulent otitis media were noted to have immobile, bulging, yellow or grey, abscessed tympanic membranes at the follow-up visit. A myringotomy was performed on 45 children. Cultures of middle-ear exudate yielded ampicillin-resistant Haemophilus influenzae in 14 (31%), ampicillin-susceptible pathogens (H. influenzae or Streptococcus pneumoniae) in 23 (51%), and no growth in 8 (18%).
Insights
Many children with acute otitis media did not respond to common antibiotics. Persistent infections often showed abscessed eardrums, with ampicillin-resistant Haemophilus influenzae frequently found in middle-ear cultures.
Area of Science:
- Pediatrics
- Infectious Diseases
- Microbiology
Background:
- Acute otitis media (AOM) is a common childhood infection.
- Antibiotic resistance is a growing concern in treating pediatric infections.
- Standard antibiotic courses may fail in some cases of AOM.
Purpose of the Study:
- To evaluate the treatment outcomes of acute otitis media in children.
- To identify pathogens and their antibiotic susceptibility in persistent AOM cases.
Main Methods:
- Retrospective analysis of 429 children with AOM.
- Follow-up evaluation of treatment response after 10-14 days of ampicillin, amoxicillin, or erythromycin/sulfisoxazole.
- Myringotomy and middle-ear fluid culture in 45 children with persistent purulent AOM.
Main Results:
- 11% of children were unresponsive to initial antibiotic treatment.
- Persistent purulent AOM was associated with immobile, bulging, abscessed tympanic membranes.
- Middle-ear cultures revealed ampicillin-resistant Haemophilus influenzae in 31% of cases.
- Ampicillin-susceptible pathogens (H. influenzae, S. pneumoniae) were found in 51% of cases.
Conclusions:
- A significant proportion of pediatric AOM cases show resistance to common antibiotics.
- Haemophilus influenzae, including ampicillin-resistant strains, is a key pathogen in persistent AOM.
- Myringotomy and culture are valuable for identifying causative agents in treatment failures.
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