Screening Tympanometry: Criteria for Medical Referral

Margolis, Robert H.; Heller, James W.

doi:10.3109/00206098709081549

Cited by 169 publications

(139 citation statements)

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“…Holte et al (1996) measured peak compensated static admittance (Ytm ) in adults aged 20 to 79 years and found no significant age effect. This finding is supported by Uchida et al (2000) who obtained tympanometric data from adults ranging in age from 40 to 70 years, and Margolis and Heller (1987) who reported data on adults aged between 19 and 61 years. However, when Margolis and Heller's (1987) data were compared with Wiley et al's (1996) data obtained from adults aged 48 to 92 years, the participants in Margolis and Heller's (1987) study had significantly greater Ytm, smaller ear canal volume (Vea) and larger tympanometric Wideband Energy Absorbance in Adults width (TW).…”

Section: Introductionsupporting

confidence: 56%

“…However, when Margolis and Heller's (1987) data were compared with Wiley et al's (1996) data obtained from adults aged 48 to 92 years, the participants in Margolis and Heller's (1987) study had significantly greater Ytm, smaller ear canal volume (Vea) and larger tympanometric Wideband Energy Absorbance in Adults width (TW). In another study, Roup et al (1998) found that their participants, aged 20 to 30 years, had significantly higher Vea and smaller TW than the participants in Margolis and Heller's (1987) study. Nevertheless, these differences in 226-Hz tympanometric parameters across age groups between studies do not provide sufficient evidence of an age effect on the outer and middle ear because of the differences in subject samples, equipment and experimental design.…”

Section: Introductionmentioning

confidence: 72%

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Age and Gender Effects on Wideband Absorbance in Adults With Normal Outer and Middle Ear Function

Mazlan

Kei

et al. 2015

J Speech Lang Hear Res

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Abbreviations: EAwere assessed. Energy absorbance (EA) data were collected at 30 frequencies using a prototype commercial instrument developed by Interacoustics. Results: Results showed that young adults had significantly lower EA from 400 Hz to 560 Hz than the middle-aged group. However, the middle-age group showed significantly lower EA between 2240 Hz and 5040 Hz than the young adult group. Additionally, the elderly had significantly lower EA than the young adult group between 2520 to 5040 Hz. No significance difference in EA was found at any frequency between middle-aged and older adults. Across age groups, gender differences were found with males having significantly higher EA values than females at lower frequencies, whereas females had significantly higher EA at higher frequencies. Conclusions: This study has provided evidence of the influence of gender and age on EA in adults with normal outer and middle ear function. These findings support the importance of establishing age-and gender-specific EA norms for the adult population. Wideband Energy Absorbance in Adults

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Section: Introductionsupporting

confidence: 56%

Section: Introductionmentioning

confidence: 72%

Age and Gender Effects on Wideband Absorbance in Adults With Normal Outer and Middle Ear Function

Mazlan

Kei

et al. 2015

J Speech Lang Hear Res

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“…For more typical flights, where the relative humidity is lower, even higher percentage changes in the admittance might be expected. The observed admittance changes are quite substantial as relative changes, but they are modest compared with the absolute range of admittances in the general population: the normative range (5 to 95 %) in younger adults is about 0.3 to 1.4 mmho (Margolis and Heller 1987). If low humidity is a factor in the incidence and severity of otic barotrauma, then it must be the relative change that is consequential.…”

Section: Discussionmentioning

confidence: 87%

The Effect of Flying and Low Humidity on the Admittance of the Tympanic Membrane and Middle Ear System

Morse

2013

JARO

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Many passengers experience discomfort during flight because of the effect of low humidity on the skin, eyes, throat, and nose. In this physiological study, we have investigated whether flight and low humidity also affect the tympanic membrane. From previous studies, a decrease in admittance of the tympanic membrane through drying might be expected to affect the buffering capacity of the middle ear and to disrupt automatic pressure regulation. This investigation involved an observational study onboard an aircraft combined with experiments in an environmental chamber, where the humidity could be controlled but could not be made to be as low as during flight. For the flight study, there was a linear relationship between the peak compensated static admittance of the tympanic membrane and relative humidity with a constant of proportionality of 0.00315 mmho/% relative humidity. The low humidity at cruise altitude (minimum 22.7 %) was associated with a mean decrease in admittance of about 20 % compared with measures in the airport. From the chamber study, we further found that a mean decrease in relative humidity of 23.4 % led to a significant decrease in mean admittance by 0.11 mmho [F(1,8)=18.95, P= 0.002], a decrease of 9.4 %. The order of magnitude for the effect of humidity was similar for the flight and environmental chamber studies. We conclude that admittance changes during flight were likely to have been caused by the low humidity in the aircraft cabin and that these changes may affect the automatic pressure regulation of the middle ear during descent.

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“…Other inclusion criteria included: (1) air-conduction thresholds <=15 dB HL at octave frequencies from 0.5 to 8 kHz, bilaterally, (2) air-bone gaps <=15 dB, and (3) 0.226 kHz tympanometry tests in the range 0.2-1.8 mmho for peak-compensated static admittance and −150 to 100 daPa for TPP. These tympanometry ranges were slightly wider than the Margolis and Heller (1987) normative data because subjects who were otherwise otologically normal would have been excluded. Forty ears of 21 participants were included in analysis in the adult group.…”

Section: A Subjectsmentioning

confidence: 99%

Wideband ipsilateral measurements of middle-ear muscle reflex thresholds in children and adults

Schairer

Ellison

Fitzpatrick

et al. 2007

The Journal of the Acoustical Society of America

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The goals of the current study were to: 1) evaluate the feasibility of a new wideband approach to measuring middle-ear muscle reflex (MEMR) status, and 2) to test the hypothesis that ipsilateral thresholds elicited with 1 or 2 kHz tones and broadband noise activators on a wideband acoustic transfer function (WATF) system are lower than thresholds elicited on a clinical system. Clinical MEMR tests have limitations, including the need for high activator levels to elicit a shift in a narrowband probe (e.g., a 0.226 or 1 kHz tone). Wideband MEMR tests using WATFs may elicit the reflex at lower levels because a wideband probe (click) is used and the threshold detection criterion can be wideband. Mean wideband MEMR thresholds across 40 normal-hearing adult ears were 2.2-4.0 dB lower than clinical MEMR thresholds, depending on the activator and specific WATF test used (admittance magnitude or energy reflectance). Wideband MEMR has potential clinical utility beyond the adult population, including use in newborn and preschool hearing screenings. In a newborn hearing screening, for example, wideband MEMR could be completed with the same system as otoacoustic emissions. However, further investigations in infants and young children are needed.

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Screening Tympanometry: Criteria for Medical Referral

Cited by 169 publications

References 0 publications

Age and Gender Effects on Wideband Absorbance in Adults With Normal Outer and Middle Ear Function

Age and Gender Effects on Wideband Absorbance in Adults With Normal Outer and Middle Ear Function

The Effect of Flying and Low Humidity on the Admittance of the Tympanic Membrane and Middle Ear System

Wideband ipsilateral measurements of middle-ear muscle reflex thresholds in children and adults

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