Otitis media with effusion
Exam Tips
- In OSCEs, distinguish OME from acute otitis media: OME usually lacks fever/systemic upset and has a retracted or dull drum rather than an acutely inflamed bulging drum.
- A normal-looking drum does not exclude OME; reduced mobility and tympanometry are key objective findings.
- Remember high-risk groups likely to need earlier hearing surveillance: Down syndrome, cleft palate, craniofacial anomalies, and primary ciliary dyskinesia.
- State clearly that routine medicines are not indicated for uncomplicated OME and mention this as a common prescribing pitfall.
- Use impact-based assessment language: hearing thresholds plus effect on speech, school function, behaviour, and balance determine escalation.
- Image cue for revision: review otoscopy examples of amber/retracted tympanic membrane and a flat Type B tympanogram figure in paediatric ENT/audiology texts.
Definition
Otitis media with effusion (OME, "glue ear") is the presence of non-purulent fluid in the middle ear behind an intact tympanic membrane, without the acute inflammatory features of acute otitis media. It is a fluctuating conductive hearing disorder of childhood that is often bilateral and clinically important when hearing loss persists, because it can affect speech, behaviour, balance, and educational progress.
Pathophysiology
OME usually follows acute otitis media or recurrent upper respiratory inflammation. The core mechanism is eustachian tube dysfunction (short, more horizontal paediatric tube plus mucosal oedema), causing impaired middle-ear ventilation, negative pressure, and transudation/retention of fluid. With persistence, sterile inflammation, intermittent low-grade viral/bacterial activity, and adenoidal disease (infection or hypertrophy acting as a nasopharyngeal reservoir) promote thicker mucoid effusions, reduced tympanic membrane mobility, and conductive hearing loss. Chronic pressure changes can lead to tympanic membrane retraction/atrophy and, rarely, cholesteatomatous change.
Risk Factors
- Age 6 months to 4 years (peak prevalence)
- Recent or recurrent acute otitis media
- Cleft palate or other craniofacial anomalies
- Down syndrome
- Primary ciliary dyskinesia
- Adenoidal hypertrophy or chronic nasal obstruction
- Allergic rhinitis/atopic disease
- Passive smoke exposure
- Nursery/day-care crowding, frequent URTIs, larger household size
- Sibling/family history of OME
- Bottle feeding (especially poorly ventilated bottles)
- Winter seasonality
Clinical Features
Symptoms
- Hearing difficulty (mishearing, asking for repetition, high TV volume)
- Fluctuating hearing, often worse in background noise
- Speech/language delay or unclear speech
- Behavioural or school-performance change (inattention, withdrawal)
- Aural fullness, popping, mild intermittent otalgia
- Tinnitus
- Balance disturbance or clumsiness
Signs
- Often no fever/systemic upset (helps distinguish from acute otitis media)
- Otoscopy: amber/yellow/blue or opaque tympanic membrane
- Reduced/absent normal light reflex
- Air-fluid level or bubbles behind tympanic membrane
- Retracted or concave tympanic membrane (occasionally fullness)
- Reduced tympanic membrane mobility on pneumatic otoscopy
Investigations
Management
Lifestyle Modifications
- Explain natural history: many cases resolve spontaneously within about 3 months.
- Active observation with review of hearing, behaviour, school/nursery progress, and speech/language development.
- Reduce modifiable risks (especially household smoking exposure).
- Consider autoinflation during watchful waiting in suitable children (if child can cooperate).
- Safety-net: urgent ENT assessment for persistent foul-smelling otorrhoea, severe unilateral persistent symptoms, or concern for complications.
Pharmacological Treatment
No routine drug therapy for OME
NICE does not recommend antibiotics, antihistamines, decongestants, corticosteroids (oral or intranasal), mucolytics, leukotriene receptor antagonists, proton-pump inhibitors, or anti-reflux medicines for isolated OME; therefore there is no evidence-based BNF dosing regimen for routine OME treatment.
Surgical / Interventional
- ENT referral for persistent bilateral OME with documented hearing loss and functional/developmental impact after a period of observation (typically ~3 months).
- Ventilation tube insertion (grommets) to improve middle-ear aeration and short-term hearing.
- Adenoid assessment and possible adenoidectomy (often with grommets) in selected children, particularly with adenoidal symptoms or recurrence, based on specialist criteria.
Complications
- Conductive hearing loss (OME is the commonest cause of childhood hearing impairment in developed settings)
- Speech and language delay
- Educational, behavioural, and social difficulties
- Balance problems and motor clumsiness
- Ear discomfort and tinnitus
- Chronic tympanic membrane retraction/atrophy with risk of retraction pockets or cholesteatoma
Prognosis
Most children improve without intervention, with many episodes resolving within 3 months. Persistence is more likely in younger children, bilateral disease, winter presentations, and those with recurrent otitis media or strong risk factors; long-term spontaneous resolution still increases with age, so management balances watchful waiting against hearing/developmental impact.
Sources & References
🏥BMJ Best Practice(1)
✅NICE Guidelines(1)
- Otitis media with effusion[overview]
📖Textbook References(9)
- David Randall PhD MRCP (Editor), John Booth PhD MRCP (Editor), K - Kumar and Clark's Clinical Medicine (2025, American Elsevier Publishing Co.) - libgen.li.pdf(pp. 627)[context]
- David Randall PhD MRCP (Editor), John Booth PhD MRCP (Editor), K - Kumar and Clark's Clinical Medicine (2025, American Elsevier Publishing Co.) - libgen.li.pdf(pp. 629)[context]
- David Randall PhD MRCP (Editor), John Booth PhD MRCP (Editor), K - Kumar and Clark's Clinical Medicine (2025, American Elsevier Publishing Co.) - libgen.li.pdf(pp. 628, 629)[context]
- David Randall PhD MRCP (Editor), John Booth PhD MRCP (Editor), K - Kumar and Clark's Clinical Medicine (2025, American Elsevier Publishing Co.) - libgen.li.pdf(pp. 624, 625)[context]
- David Randall PhD MRCP (Editor), John Booth PhD MRCP (Editor), K - Kumar and Clark's Clinical Medicine (2025, American Elsevier Publishing Co.) - libgen.li.pdf(pp. 624, 625)[context]
- Oxford Handbook of Clinical Diagnosis (Huw Llewelyn, Hock Aun Ang, Keir Lewis etc.) (Z-Library).pdf(pp. 97)[context]
- [Williams, Bailey and Love's Short Practice of Surgery] Norman Williams, Christopher Bulstrode, P Ronan O'Connell - Bailey & Love's Short Practice of Surgery 26E (2013, CRC Press) - libgen.li.pdf(pp. 655, 656)[context]
- [Williams, Bailey and Love's Short Practice of Surgery] Norman Williams, Christopher Bulstrode, P Ronan O'Connell - Bailey & Love's Short Practice of Surgery 26E (2013, CRC Press) - libgen.li.pdf(pp. 683)[context]
- [Williams, Bailey and Love's Short Practice of Surgery] Norman Williams, Christopher Bulstrode, P Ronan O'Connell - Bailey & Love's Short Practice of Surgery 26E (2013, CRC Press) - libgen.li.pdf(pp. 655, 656, 657)[context]