Overview
Chronic bacterial otitis externa (CBOE) is a persistent infection of the external auditory canal caused by bacteria, often complicating acute otitis externa and leading to symptoms such as ear pain, discharge, and hearing impairment 6.Diagnosis
Clinical presentation includes persistent otorrhea, otalgia, and conductive hearing loss 6.
Microbiological culture and sensitivity testing is essential for identifying the causative organism and guiding antibiotic therapy 6.
Imaging (e.g., CT or MRI) may be considered in cases of suspected complications or refractory disease 6.Management
First-line treatment: Topical antibiotics such as quinolones (e.g., ciprofloxacin) or aminoglycosides (e.g., gentamicin) 6.
Adjunctive measures: Cerumen removal, topical corticosteroids to reduce inflammation, and ensuring proper ear canal drying 6.
Systemic antibiotics: Considered in severe cases or when topical therapy fails, often including flouroquinolones or macrolides 6.Special Populations
Pediatrics: Careful selection of topical agents to avoid systemic absorption and potential toxicity; close monitoring for adherence and efficacy 6.
Elderly: Increased risk of complications; thorough evaluation for underlying comorbidities and careful management to avoid systemic side effects 6.Key Recommendations
Utilize microbiological culture and sensitivity testing to tailor antibiotic therapy (Evidence: Moderate 6).
Initiate treatment with topical antibiotics, considering quinolones or aminoglycosides, and incorporate corticosteroids for inflammation (Evidence: Moderate 6).
Transition to systemic antibiotics if topical management fails, selecting agents based on sensitivity results (Evidence: Moderate 6).
Pay special attention to patient adherence and potential complications in pediatric and elderly populations (Evidence: Expert opinion 6).References
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4 Dugan JW, Weatherly RA, Girod DA, Barber CE, Tsue TT. A longitudinal study of emotional intelligence training for otolaryngology residents and faculty. JAMA otolaryngology-- head & neck surgery 2014. link
5 Sun GH, Davis MM. The Patient Protection and Affordable Care Act of 2010: impact on otolaryngology practice and research. Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery 2012. link
6 Chernobilsky B, Boruk M. Electronic medical records for otolaryngology office-based practice. Current opinion in otolaryngology & head and neck surgery 2008. link