Tympanometry in Infants: A Study of the Sensitivity and Specificity of 226-Hz and 1,000-Hz Probe Tones
International Archives of Otorhinolaryngology
Carmo, M. P., Costa, N. T., et al. (2013).
International Archives of Otorhinolaryngology, 17(4), 395-402.
This systematic review examines the diagnostic accuracy of 226-Hz and 1000-Hz probe tone tympanometry to identify middle ear disorders in infants under 6 months.
Not stated
January 2001 through December 2011
Published studies (not further specified)
14
"It was found that both the test tones of 226 and 1,000 Hz show false-positive results (indicating the presence of alterations in the [middle ear] ME when they do not exist) and false-negative results (when changes are not detected even in their presence). However, both false-positives and false-negatives are less frequent with the 1,000-Hz probe tone. For this reason, the test frequency of 1,000 Hz is more sensitive and specific than the frequency of 226 Hz for the assessment of ME alterations in neonates" (p. 401).
