Question 1 · Medium
A 2-year-old girl had her cleft palate repaired at 11 months. Her mother now reports that she does not respond well to sounds, and examination shows dull, retracted tympanic membranes on both sides. Which mechanism best explains this?
- ADamage to the cochlea during palate surgery
- BRecurrent nasal regurgitation into the middle ear
- CPoor tensor veli palatini action on the Eustachian tube
- DAbsence of the stapedius reflex from facial palsy
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Answer: C · Poor tensor veli palatini action on the Eustachian tube
In cleft palate, the tensor veli palatini and levator veli palatini are abnormally inserted, so the tensor cannot open the Eustachian tube properly. The middle ear is poorly ventilated, causing otitis media with effusion and conductive hearing loss in most children with cleft palate, and this can persist after repair. Hearing assessment is part of routine cleft care, and grommets are inserted when hearing loss is significant. Unrecognised hearing loss adds to speech delay.
- A: Palate surgery does not touch the cochlea; this hearing loss is conductive.
- B: Nasal regurgitation affects feeding and speech, not middle ear ventilation directly.
- D: The stapedius reflex has nothing to do with middle ear effusion.