ABOHNS QOTW • Board-style otology
Also relevant to FRCS (ORL-HNS) + EBEORL-HNS
Post-stapedectomy vertigo + hearing crash: diagnose by timing.
If a patient becomes suddenly worse around day 7–15 after stapes surgery with vertigo + rapid SNHL, treat it as an inner-ear emergency and think reparative granuloma until proven otherwise.
Exam trap: BPPV can be positional, but it should not explain a sudden hearing crash.
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The clinical scenario (pattern recognition)
This is a board favourite because it rewards the fastest discriminator: timing.
You’re reviewing a patient 10 days after an uncomplicated stapedectomy/stapedotomy for otosclerosis. They initially improve — then suddenly develop severe vertigo and a significant hearing drop. The wound looks fine, and imaging may even be “normal.”
Diagnostic approach: timing is everything
Your differential should be time-anchored — then you document whether the hearing loss is SNHL.
Timing-based differential (high yield)
| When symptoms start | Think first | Why it matters |
|---|---|---|
| 0–7 days | Perilymph leak/fistula, prosthesis malposition, early inner-ear insult | Early mechanical/leak causes are more likely immediately post-op |
| 7–15 days | Reparative granuloma | Classic window; don’t be reassured by a normal wound or “normal” imaging |
| >4 weeks | Infection, delayed mechanical issues, other inner-ear pathology | Broaden the differential; reassess red flags and escalate appropriately |
Stepwise exam answer
- Establish the timeline. Timing is the fastest discriminator.
- Document the hearing crash. Vertigo alone can occur; vertigo + rapid SNHL is the red flag.
- Urgent audiogram. Confirm severity and whether it’s SNHL/mixed/CHL.
- Screen for red flags. Fever, meningism, CSF leak symptoms, neuro deficits.
- Imaging supports, but never reassures. If the pattern fits, don’t delay escalation waiting for scans.
Management checklist (same-day actions)
In exams you’re marked on speed, escalation, and hearing preservation.
- Urgent audiogram (confirm SNHL; document baseline deficit)
- High-dose corticosteroids (if appropriate / not contraindicated)
- Urgent otology escalation for management decisions (including possible early exploration/revision when suspicion is high)
- Consider antibiotics if infectious concern exists (case-dependent)
Pitfalls that lose hearing
- Calling it BPPV (positional ≠ hearing crash)
- Ignoring timing (day 7–15 is the classic window)
- Delaying escalation because the wound “looks fine”
- Being falsely reassured by normal imaging
Want more board-style otology patterns?
Drill recognition + elimination skills with detailed rationales and timed mocks.
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FAQ
What is reparative (vestibular) granuloma after stapes surgery?
A rare but serious inflammatory/granulation tissue reaction around the oval window/stapes prosthesis region, classically associated with vertigo and a sensorineural hearing loss (SNHL) drop.
When does it typically present?
The classic timing is day 7–15 after stapedectomy/stapedotomy — a key board-style pattern.
How do I distinguish BPPV from an otologic emergency in this setting?
BPPV causes brief positional vertigo episodes but should not explain a sudden hearing crash. Vertigo + rapid SNHL after stapes surgery should trigger urgent otology escalation.
What else is on the differential for vertigo + hearing loss after stapes surgery?
Early (0–7 days) issues include perilymph leak/fistula or prosthesis problems; later differentials include infection and delayed mechanical issues. Timing + audiogram pattern help you prioritize.
Do I need CT/MRI to diagnose reparative granuloma?
Imaging can support evaluation of complications, but it may be normal. If the timing + symptoms fit, don’t delay escalation waiting for imaging.
What is the immediate management in an exam answer?
Treat as an inner-ear emergency: urgent audiogram, consider high-dose steroids if appropriate, and urgent otology referral for possible early exploration/revision when suspicion is high.
Can hearing recover?
Outcomes vary. The examinable point is that early recognition + urgent escalation aims to maximize hearing preservation and symptom control.
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