A 22-year-old woman presents 2 hours after a slap injury to the right side of her head. She reports immediate ear pain, hearing loss, and tinnitus with bloody ear discharge. Otoscopy shows a small central perforation (~15% of pars tensa) in the antero-inferior quadrant with fresh blood at the edges. Pure-tone audiometry reveals the pattern shown as **D** in the diagram. Which of the following is the MOST appropriate next step in management?
A. Topical ciprofloxacin otic drops three times daily to prevent middle-ear infection
B. Immediate tympanoplasty to prevent permanent hearing loss
C. Urgent CT temporal bone to rule out ossicular discontinuity
D. Dry ear precautions, analgesia, and audiogram at 4 weeks to assess spontaneous healing
Explanation
Why "Dry ear precautions, analgesia, and audiogram at 4 weeks to assess spontaneous healing" is right
The audiometric pattern D (mild conductive loss ~15–20 dB with intact bone conduction) is the hallmark of acute traumatic tympanic membrane perforation with no inner-ear involvement. According to Cummings Otolaryngology, >80% of small to moderate traumatic perforations heal spontaneously within 4–6 weeks. Conservative management is the standard of care: dry ear precautions (keep ear out of water, use petroleum jelly-coated cotton plug during showers, no swimming), oral analgesics for pain, and follow-up audiometry at 4 weeks to confirm healing. This patient has no red flags (no posterior-superior quadrant involvement, no SNHL, no vertigo, no facial paralysis), making her an ideal candidate for conservative management.
Why each distractor is wrong
Immediate tympanoplasty to prevent permanent hearing loss: Tympanoplasty is reserved for perforations that fail to heal spontaneously by 3 months. Performing it acutely is unnecessary, adds surgical risk, and contradicts the evidence-based conservative approach for small traumatic perforations.
Topical ciprofloxacin otic drops three times daily to prevent middle-ear infection: Most topical otic drops are ototoxic if they enter the middle ear through a perforation. Prophylactic drops are not indicated in the absence of documented infection. Dry ear precautions alone are sufficient to prevent infection in uncomplicated traumatic perforations.
Urgent CT temporal bone to rule out ossicular discontinuity: CT is not routinely indicated for small central perforations in the antero-inferior quadrant. Urgent imaging is reserved for perforations involving the posterior-superior quadrant (risk of ossicular injury or perilymphatic fistula), profound SNHL, vertigo, facial paralysis, or penetrating injuries—none of which are present here.
High-YieldNEET PG
Small traumatic TM perforations (≤25% of pars tensa) with conductive hearing loss and no inner-ear signs heal spontaneously >80% of the time; conservative management with dry ear precautions and delayed audiometry is the standard of care.
Cummings Otolaryngology — TM perforation
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