MNJ34-001
A 5-year-old girl presented with complaints of recurrent ear-related problems. She also developed mild-to-moderate conductive hearing loss. She was managed with a surgical procedure due to non-response to medical management. See the otoscopic images below (Image A: Preoperative; Image B: Postoperative):

MNJ-P-OSCE 34. Eye_page_6_Picture_7.jpeg
MNJ-P-OSCE 34. Eye_page_6_Picture_8.jpeg

  1. What are the findings in Image A and Image B?
  2. What are the indications for this operative procedure in these cases?
  3. What are the possible complications after this procedure?

Answer

  1. Findings:
    • Image A (Preoperative): Chronic tympanic membrane (TM) retraction with Otitis Media with Effusion (OME / glue ear).
    • Image B (Postoperative): Myringotomy with tympanostomy / grommet tube placement (in situ, patent lumen).
  2. Indications for tympanostomy tube insertion:
    • Persistent bilateral otitis media with effusion (OME) for ≥3 months with documented hearing impairment (≥20–30 dB threshold).
    • Unilateral OME persisting for ≥6 months with symptoms/developmental risk.
    • Recurrent acute otitis media (AOM) (≥3 episodes in 6 months or ≥4 episodes in 12 months with at least 1 in preceding 6 months).
    • Persistent Eustachian tube dysfunction with severe retraction pocket / atelectasis of the tympanic membrane.
    • Suppurative complications of acute otitis media (e.g., facial nerve palsy, mastoiditis).
  3. Complications of tympanostomy tube:
    • Postoperative otorrhea / secondary infection
    • Blockage / obstruction of tube lumen (cerumen/mucus)
    • Premature extrusion of the tube
    • Persistent tympanic membrane perforation (after tube extrusion)
    • Tympanosclerosis / myringosclerosis
    • Retained / non-extruding grommet tube requiring surgical removal
    • Inward displacement / cholesteatoma formation (rare)