Diagnosis and Management of Acute Otitis Media (AOM) vs Otitis Media with Effusion (OME)
✅ 1. Diagnosis of Acute Otitis Media (AOM)
Diagnostic Criteria — must have ALL:
A. Acute symptoms
- Fever
- Otalgia (ear pain)
- Irritability in children
- Otorrhea (only if TM perforation)
B. Middle-ear inflammation
Seen on otoscopy:
- Bulging tympanic membrane (TM) — most specific finding
- Erythema of TM
- Reduced mobility on pneumatic otoscopy
C. Middle-ear effusion
- Opaque TM
- Air-fluid level
- Loss of TM landmarks
👉 Bulging TM + acute ear pain = AOM until proven otherwise.
✅ 2. Diagnosis of Otitis Media with Effusion (OME)
OME = Fluid in middle ear WITHOUT signs of acute inflammation.
Diagnostic Features:
- Hearing loss
- A “fullness” sensation
- TM retracted or neutral (NOT bulging)
- Air-fluid level
- Reduced TM mobility
- NO fever, NO acute pain
OME is usually viral or allergic, not bacterial.
📌 Summary Comparison
| Feature | AOM | OME |
| Pain | ✔️ Yes | ❌ Usually no |
| Fever | ✔️ Often | ❌ No |
| TM bulging | ✔️ Yes (hallmark) | ❌ No |
| TM color | Red/yellow | Dull/gray |
| Mobility | Decreased | Decreased |
| Effusion | ✔️ Yes | ✔️ Yes |
| Cause | Mostly bacterial | Viral/allergic/fluid retention |
🩺 3. Management of Acute Otitis Media (AOM)
A. First-Line Antibiotic (if indicated)
Amoxicillin (80–90 mg/kg/day) divided BID for 5–10 days
- Adults: Amoxicillin 500 mg TID × 5–7 days
When to treat with antibiotics?
| Give antibiotics | Observe |
| < 6 months | ≥ 2 years + mild symptoms |
| 6–23 months with definite AOM | Unilateral AOM, mild symptoms |
| Severe illness (fever ≥39°C, severe pain) | Reliable follow-up |
B. Second-Line Antibiotics
Use if:
- Received amoxicillin in past 30 days
- Concomitant purulent conjunctivitis
- No improvement in 48–72h
→ Amoxicillin-Clavulanate (90 mg/kg/day) OR → Cefdinir / Cefpodoxime / Cefuroxime OR → IM Ceftriaxone (1–3 days)
C. Supportive Care
- Ibuprofen or Acetaminophen
- Warm compress
- Adequate hydration
Avoid
❌ Decongestants ❌ Antihistamines ❌ Steroids They do not help in AOM (per AAP guidelines).
🩺 4. Management of Otitis Media With Effusion (OME)
Most important:
📌 OME does NOT require antibiotics 📌 OME does NOT require steroids 📌 Watchful waiting for 3 months is standard (AAP/AAO-HNS guidelines)
Management Plan
- Watchful waiting for 3 months
- Hearing assessment if:
- OME persists >3 months
- Speech delay
- Developmental disorders
- Environmental modification
- Avoid secondhand smoke
- Treat underlying allergy if present
Indications for Tympanostomy Tubes
- Bilateral OME ≥ 3 months + documented hearing loss
- Recurrent AOM:
- ≥3 episodes in 6 months
- OR ≥4 in 1 year (1 in past 6 months)
🧠 Quick Mnemonics
AOM diagnosis mnemonic — “BAR”
- Bulging TM
- Acute symptoms (pain, fever)
- Reduced mobility
OME management mnemonic — “WHEAT”
- Watchful waiting
- Hearing test if >3 months
- Evaluate for risk factors
- Avoid unnecessary antibiotics
- Tympanostomy tubes (if hearing issue >3 months)