Definition of AOM
A diagnosis of AOM requires 1) a history of acute onset of signsand symptoms, 2) the presence of MEE, and 3) signs andsymptoms of middle-ear inflammation.Elements of the definition of AOM are all of the following:1. Recent, usually abrupt, onset of signs and symptoms ofmiddle-ear inflammation and MEE2. The presence of MEE that is indicated by any of thefollowing:a. Bulging of the tympanic membraneb. Limited or absent mobility of the tympanic membranec. Air-fluid level behind the tympanic membraned. Otorrhea3. Signs or symptoms of middle-ear inflammation asindicated by eithera. Distinct erythema of the tympanic membrane orb. Distinct otalgia (discomfort clearly referable to the ear[s]that results in interference with or precludes normalactivity or sleep)