Purpose: The purpose of this study was to examine current immittance practices and trends over time, reasons why multifrequency (MF) and multicomponent (MC) tympanometry have been underused, and the prevalence of negative patient reactions to acoustic reflex (AR) testing.
Method: Two audiological practice surveys were conducted regarding tympanometry (2008, n = 156) and AR (2009, n = 90).
Results: Most respondents conduct tympanometry and AR threshold (ART) testing. MF and MC tympanometry were rarely reported, generally due to a lack of equipment and training. ART testing was reported most often using both ipsilateral and contralateral presentation. Contralateral testing has decreased over time. Patient complaints of discomfort following AR testing were common. Complaints of tinnitus or hearing loss were present, although rare.
Conclusion: Tympanometry and ART tests have remained popular for the past 30 years, whereas acoustic reflex decay (ARD) testing has decreased in popularity. MF and MC tympanometry are conducted infrequently. AR is frequently associated with discomfort but rarely associated with other symptoms. However, one respondent reported that AR testing had caused permanent tinnitus and hearing loss.
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http://dx.doi.org/10.1044/1059-0889(2012/11-0037) | DOI Listing |
Heliyon
June 2024
Master of Science, Reutlingen Research Institute, Reutlingen University, Alteburgstr. 150, 72762, Reutlingen, Germany.
Current noninvasive methods of clinical practice often do not identify the causes of conductive hearing loss due to pathologic changes in the middle ear with sufficient certainty. Wideband acoustic immittance (WAI) measurement is noninvasive, inexpensive and objective. It is very sensitive to pathologic changes in the middle ear and therefore promising for diagnosis.
View Article and Find Full Text PDFAm J Audiol
March 2024
Center for Hearing Research, Boys Town National Research Hospital, Omaha, NE.
Purpose: Wideband acoustic immittance (WAI) is a promising measure of middle-ear mechanics. In contrast to standard tympanometry, which is generally measured at a single stiffness-dominated low frequency, WAI detects mechanical effects on both the mass and stiffness properties of the middle ear across a wide range of frequencies, resulting in a more comprehensive assessment of middle-ear mechanics in healthy and pathological ears. Despite a plethora of research demonstrating the clinical utility of this measure, clinical adoption of WAI is still limited.
View Article and Find Full Text PDFInt Arch Otorhinolaryngol
October 2023
Independent Clinical Researcher, Campinas, São Paulo, Brazil.
Semin Hear
February 2023
Department of Otolaryngology and Communicative Disorders, School of Medicine, University of Louisville, Louisville, Kentucky.
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 otolaryngology practice has been slower than expected, potentially due to challenges with interpretation, integration into existing test batteries, and confidence in practical application. This article presents information aimed at helping clinicians increase their confidence in using this new tool by becoming more familiar and making connections with the ways that WAI outcomes both align with and add to standard immittance, audiometric and otologic diagnostic test outcomes.
View Article and Find Full Text PDFSemin Hear
February 2023
Department of Communication Sciences and Disorders, College of Health, Idaho State University, Pocatello, Idaho.
Clinical assessment of middle ear function has undergone multiple transformations and developments since the first acoustic impedance measurements were made in human ears nearly a century ago. The decades following the development of the first acoustic impedance bridge by Metz in 1946 witnessed a series of technological advancements leading to the widespread use of single-frequency admittance tympanometry in the 1960s. In the 1970s, multi-frequency and multi-component tympanometry (MFT) emerged for clinical use, allowing for a better understanding of the middle ear acoustic-mechanical response at frequencies between 200 and 2,000 Hz.
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