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Article
Objective: To summarize absorbance and impedance angles from normal-hearing ears within the 2015-2016 and 2017-2020 US National Health and Nutrition Examination Surveys (NHANES). Design: Two publicly available NHANES datasets were analyzed. Ear[...]Article
M. Patrick Feeney ; Douglas H. Keefe ; Lisa L. Hunter ; Dennis F. Fitzpatrick ; Daniel B. Putterman ; Angela C. Garinis |Objective: Wideband absorbance and absorbed power were evaluated in a group of subjects with surgically confirmed otosclerosis (Oto group), mean age 51.6 years. This is the first use of absorbed power in the assessment of middle ear disorders. R[...]Article
Hammam A. AlMakadma, Auteur ; Joseph Kei, Auteur ; David Yeager, Auteur ; M. Patrick Feeney, Auteur |Assessment of middle ear impedance using noninvasive electroacoustic measurements has undergone successive developments since its first clinical application in the 1940s, and gained widespread adoption since the 1970s in the form of 226-Hz tympa[...]Article
Chris A. Sanford, Auteur ; Jeff E. Brockett, Auteur ; Venkatesh Aithal, Auteur ; Hammam A. AlMakadma, Auteur |A number of studies have produced normative and developmental data and examples of wideband acoustic immittance (WAI) obtained in ears with pathologies and or dysfunction. However, incorporation of this tool into clinical audiology and otolaryng[...]Article
Lisa L. Hunter ; Chelsea M. Blankenship ; Li Lin ; Nicholette Sloat ; Audrey Perdew ; Hannah Stewart ; David R. Moore |AB Objectives: This study tested the hypothesis that undetected peripheral hearing impairment occurs in children with idiopathic listening difficulties (LiDs), as reported by caregivers using the Evaluation of Children"s Listening and Processing[...]Article
Background Wideband absorbance (WBA) measured at ambient pressure (WBAA) does not directly account for middle ear pressure effects. On the other hand, WBA measured at tympanometric peak pressure (TPP) (WBATPP) may compensate for the middle ear [...]Article
Kristine E. Eberhard ; Hideko H. Nakajima ; Stephen T. Neely ; Stéphane Maison ; Salwa F. Masud ; Michael E. Ravicz ; Gabrielle R. Merchant |Absorbance measured using wideband tympanometry (WBT) has been shown to be sensitive to changes in middle and inner ear mechanics, with potential to diagnose various mechanical ear pathologies. However, artifacts in absorbance due to measurement[...]Article
Objectives: Because unresolved debris in the ear canal or middle ear of newborns may produce high false positive rates on hearing screening tests, it has been suggested that an outer/middle ear measure can be included at the time of hearing scre[...]Article
Hammam A. AlMakadma, Auteur ; Sreedevi Aithal, Auteur ; Venkatesh Aithal, Auteur ; Joseph Kei, Auteur |With widespread agreement on the importance of early identification of hearing loss, universal newborn hearing screening (UNHS) has become the standard of care in several countries. Despite advancements in screening technology, UNHS and early he[...]Article
Objectives The objective of this study was to describe wideband absorbance (WBA) findings in patients with cholesteatomas and retraction pockets (RPs). Design In this prospective study, tympanometry, audiometry, and wideband tympanometry (W[...]Article
Navid Shahnaz, Auteur ; Sreedevi Aithal, Auteur ; Gabriel A. Bargen, Auteur |As wideband absorbance (WBA) gains popularity, it is essential to understand the impact of different middle ear pathologies on the absorbance patterns as a function of frequency in children with various middle ear pathologies. More recently, the[...]Article
Objectives: Wideband tympanometry (WBT) measures middle-ear function across a range of frequencies (250 to 8000 Hz) while the ear-canal pressure is varied from +200 to -300 daPa. WBT is a suitable test to evaluate middle-ear function in children[...]
