What causes 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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Answer

Obstruction of the eustachian tube appears to be the most important antecedent event associated with AOM. The vast majority of AOM episodes are triggered by an upper respiratory tract infection (URTI) involving the nasopharynx.


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