Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Tympanometric gradient measured from normal preschool children.

K A Koebsell, R H Margolis

    Audiology : Official Organ of the International Society of Audiology
    |January 1, 1986
    PubMed
    Summary

    The tympanometric gradient, a measure of middle ear disease, shows promise but requires further study. The pressure interval for a 50% reduction in peak eardrum admittance is a potential clinical standard.

    Related Concept Videos

    You might also read

    Related Articles

    Articles linked to this work by shared authors, journal, and citation graph.

    Sort by
    Same author

    Multifrequency Tympanometry: Current Clinical Application.

    American journal of audiology·2015
    Same author

    The development of the middle ear in neonatal chinchillas II. Two weeks to adulthood.

    Acta oto-laryngologica·2001
    Same author

    Wideband reflectance tympanometry in chinchillas and human.

    The Journal of the Acoustical Society of America·2001
    Same author

    Development of the middle ear in neonatal chinchillas. I. Birth to 14 days.

    Acta oto-laryngologica·2001
    Same author

    Quantitative analysis of tympanic membrane disease using video-otoscopy.

    The Laryngoscope·2000
    Same author

    High-frequency hearing loss and wideband middle ear impedance in children with otitis media histories.

    Ear and hearing·2000

    Area of Science:

    • Audiology
    • Otoacoustic Emissions
    • Middle Ear Physiology

    Background:

    • Tympanometric gradient measures middle ear condition but prior studies used non-standard units.
    • Current instrumentation provides physical admittance units, necessitating re-evaluation of gradient measures.
    • Gradient measures may offer diagnostic and prognostic value for middle ear diseases.

    Purpose of the Study:

    • To evaluate eight tympanometric gradient measures in normal preschool children.
    • To identify the most reliable tympanometric gradient measure for clinical use.
    • To assess the clinical utility of tympanometric gradient in middle ear disease assessment.

    Main Methods:

    • Tympanograms were recorded from normal preschool children.
    • Eight tympanometric gradient measures were calculated.
    • Measures were analyzed for distribution, relation to static admittance, and pump speed effects.

    Main Results:

    • One measure, the pressure interval for 50% peak eardrum admittance reduction, showed promise.
    • This measure demonstrated favorable distribution characteristics and pump speed independence.
    • Further validation in abnormal ears is required to confirm clinical utility.

    Conclusions:

    • The pressure interval for 50% peak eardrum admittance reduction is a potential standard for tympanometric gradient measurement.
    • This measure is comparable across different tympanometry systems.
    • Clinical validation in patients with middle ear disease is essential to establish its diagnostic value.

    Related Experiment Videos