Infrared emission detection tympanic thermometry May be useful in diagnosing acute otitis media

To determine the utility of infrared emission detection (IRED) tympanic thermometry in diagnosing acute suppurative otitis media (ASOM), a prospective, nonblinded sampling of ear temperatures was performed. Children between the ages of 6 months and 6 years presenting to an urban emergency department were included in the study. Tympanic temperatures were determied in all subjects. Clinical data, tympanic audiometry, and telephone follow-up were used to define ASOM. Temperature differences were determined for children with unilateral ASOM and those without ear infection. Data from 48 patients were analyzed. The mean temperature difference in the control group, 0.23° ± 0.15°C (95% confidence interval [Cl], 0.17° to 0.29°C) differed from those with ASOM: 0.39° ± 0.29°C (95% Cl, 0.25° to 0.53° C, P = .047). Logistic regression was used to describe the predictive relationship between temperature difference and probability of ASOM. We conclude that IRED tympanic thermometry may be useful in diagnosing ASOM when used with other clinical data.