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Introduction: Otitis externa (OE) accounts for 1.1-1.3% of patient presentations in primary care and 25% of urgent referrals to ENT. We aimed to explore: 1) OE clinical decision-making at the primary-secondary care interface; 2) OE prevalence; and 3) Recent trends in antimicrobial resistance in OE-related bacterial isolates and ototopical prescribing. Methods: This is a mixed-methods study drawing on data from primary and secondary care and open NHS sources. Results: 101 GP survey respondents reported frequently prescribing oral antibiotics for OE. GP consultations for OE increased 25% over 15 years. GP ototopical preparations cost the NHS £7,410,440 in 2006; £11,325,241 in 2016. 162 consecutive hospital OE-related bacterial isolates yielded 128 Pseudomonas spp., 18 resistant to gentamicin, 7 to ciprofloxacin. 10 guidelines reviewed showed systematic inconsistencies. Conclusion: GPs reported regularly prescribing oral antibiotics for OE. Antimicrobial drug resistance is common in OE. Available guidance is suboptimal.

Original publication

DOI

10.1017/S0022215121003649

Type

Journal article

Journal

Journal of Laryngology and Otology

Publication Date

01/01/2021