How does a patulous or hypotonic eustachian tube contribute to the pathogenesis of acute otitis media (AOM)?

Updated: Sep 25, 2019
  • Author: John D Donaldson, MD, FRCSC, FACS; Chief Editor: Arlen D Meyers, MD, MBA  more...
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In a minority of otitis-prone children, the eustachian tube is patulous or hypotonic. Children with neuromuscular disorders or abnormalities of the first or second arch are most likely “too open” and are therefore predisposed to reflux of nasopharyngeal contents into the middle ear cleft.

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