International journal of pediatric otorhinolaryngology · 2020
Tympanometric interaural asymmetry in African-American school-aged children.
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Stuart Andrew, Engelhardt Baylee M, Tomaszewski Emma K
Аннотация
OBJECTIVES: The purpose of this study was to investigate the tympanometric asymmetry in children. The determination of ear differences would be useful clinically in determining what qualifies as a significant asymmetry in tympanometric indices and hence middle ear dysfunction.
METHODS: Fifty-five otologically normal school-aged African American children participated. Middle ear indices of peak compensated static acoustic admittance, equivalent ear canal volume, tympanometric peak pressure, and tympanometric width were examined.
RESULTS: No significant differences between right and left tympanometric indices were found (p > .05). Correlations between right and left tympanometric indices were positive and statistically significant (p < .05). Critical differences, for deciding if two tympanometry indices are different between ears, were computed from the standard deviations of the right-left ear difference for confidence levels of 85%-99%.
CONCLUSIONS: Critical differences for tympanometric indices can be used by clinicians to assess if ear asymmetries are statistically significant.
METHODS: Fifty-five otologically normal school-aged African American children participated. Middle ear indices of peak compensated static acoustic admittance, equivalent ear canal volume, tympanometric peak pressure, and tympanometric width were examined.
RESULTS: No significant differences between right and left tympanometric indices were found (p > .05). Correlations between right and left tympanometric indices were positive and statistically significant (p < .05). Critical differences, for deciding if two tympanometry indices are different between ears, were computed from the standard deviations of the right-left ear difference for confidence levels of 85%-99%.
CONCLUSIONS: Critical differences for tympanometric indices can be used by clinicians to assess if ear asymmetries are statistically significant.