What is the definition 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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Answer

AOM is defined by convention as the first 3 weeks of a process in which the middle ear shows the signs and symptoms of acute inflammation. OME is defined as the presence of fluid in the middle ear with accompanying conductive hearing loss and without concomitant symptoms or signs of acuity. OME is classified as subacute when it persists from 3 weeks to 3 months after the onset of AOM and is classified as chronic thereafter. [1, 2]


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