Relationship of pure tone air conduction threshold, most comfortable loudness level (MCL), and uncomfortable loudness level (UCL).

A comparison has been made of air conduction threshold changes up to 1 year after myringotomy, aspiration of middle ear fluid, and insertion of ventilation tubes in ten patients with bilateral and 12 with unilateral secretory otitis media (SOM). Pure tone air conduction thresholds have been analyzed in three frequency groups: Low frequency (LF; 0.25, 0.5, and 1 kHz), high frequency (HF; 2,4, and 8 kHz), and extra-high frequency (EHF; 10, 12, 14, and 16 kHz). In the LF and HF ranges, significant improvement came during the first 24 hours after intubation, while in the EHF range, threshold lowering occurred gradually over the following 2 months. Possible explanations for these findings are discussed.

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Dissimilarity Ratings of English Consonants by Normally-Hearing and Hearing-Impaired Individuals

Journal of Speech Language and Hearing Research ◽

10.1044/jshr.2202.236 ◽

1979 ◽

Vol 22 (2) ◽

pp. 236-246 ◽

Cited By ~ 4

Author(s):

Jeffrey L. Danhauer ◽

Ruth M. Lawarre

Keyword(s):

Normal Hearing ◽

Hearing Impaired ◽

Interval Scale ◽

Individual Group ◽

Speech Stimuli ◽

Paired Stimuli ◽

Loudness Level ◽

Comfortable Loudness

Perceptual patterns in rating dissimilarities among 24 CVs were investigated for a group of normal-hearing and two groups of hearing-impaired subjects (one group with flat, and one group with sloping, sensorineural losses). Stimuli were presented binaurally at most comfortable loudness level and subjects rated the 576 paired stimuli on a 1–7 equal-appearing interval scale. Ratings were submitted to individual group and combined INDSCAL analyses to describe features used by the subjects in their perception of the speech stimuli. Results revealed features such as sibilant, sonorant, plosive and place. Furthermore, normal and hearing-impaired subjects used similar features, and subjects' weightings of features were relatively independent of their audiometric configurations. Results are compared to those of previous studies.

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Automated Audiometry in Quiet and Simulated Exam Room Noise for Listeners with Normal Hearing and Impaired Hearing

Journal of the American Academy of Audiology ◽

10.1055/s-0041-1728778 ◽

2021 ◽

Author(s):

Brianna N. Bean ◽

Richard A. Roberts ◽

Erin M. Picou ◽

Gina P. Angley ◽

Amanda J. Edwards

Keyword(s):

Pure Tone ◽

Local Area ◽

Normal Hearing ◽

Automated Testing ◽

Impaired Hearing ◽

Step Size ◽

Low Level ◽

Exam Room ◽

Controlled Environments ◽

Air Conduction

Abstract Background Up to 80% of audiograms could be automated which would allow more time for provision of specialty services. Ideally, automated audiometers would provide accurate results for listeners with impaired hearing as well as normal hearing. Additionally, accurate results should be provided both in controlled environments like a sound-attenuating room but also in test environments that may support greater application when sound-attenuating rooms are unavailable. Otokiosk is an iOS-based system that has been available for clinical use, but there are not yet any published validation studies using this product. Purpose The purpose of this project was to complete a validation study on the OtoKiosk automated audiometry system in quiet and in low-level noise, for listeners with normal hearing and for listeners with impaired hearing. Research Design Pure tone air conduction thresholds were obtained for each participant for three randomized conditions: standard audiometry, automated testing in quiet, and automated testing in noise. Noise, when present, was 35 dBA overall and was designed to emulate an empty medical exam room. Study Sample Participants consisted of 11 adults with hearing loss and 15 adults with normal hearing recruited from the local area. Data Collection and Analysis Thresholds were measured at 500, 1000, 2000, and 4000 Hz using the Otokiosk system that incorporates a modified Hughson-Westlake method. Results were analyzed using descriptive statistics and also by a linear mixed-effects model to compare thresholds obtained in each condition. Results Across condition and participant group 73.6% of thresholds measured with OtoKiosk were within ± 5 dB of the conventionally measured thresholds; 92.8% were within ± 10 dB. On average, differences between tests were small. Pairwise comparisons revealed thresholds were ∼3.5–4 dB better with conventional audiometry than with the mobile application in quiet and in noise. Noise did not affect thresholds measured with OtoKiosk. Conclusions The OtoKiosk automated hearing test measured pure tone air conduction thresholds from 500 - 4000 Hz at slightly higher thresholds than conventional audiometry, but less than the smallest typical 5 dB clinical step-size. Our results suggest OtoKiosk is a reasonable solution for sound booths and exam rooms with low-level background noise.

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Autologous total ossicular replacement prosthesis

The Journal of Laryngology & Otology ◽

10.1017/s0022215114002679 ◽

2014 ◽

Vol 128 (12) ◽

pp. 1050-1055 ◽

Cited By ~ 5

Author(s):

M Malhotra ◽

S Varshney ◽

R Malhotra

Keyword(s):

Pure Tone ◽

Chronic Otitis Media ◽

Canal Wall ◽

Hearing Improvement ◽

Hearing Results ◽

Replacement Technique ◽

Ossicular Replacement ◽

Canal Wall Down ◽

Replacement Prosthesis ◽

Air Conduction

AbstractObjective:To develop an autologous total ossicular replacement prosthesis with sustainable hearing results.Methods:The ears of 40 patients, who had chronic otitis media with absent suprastructure of the stapes and long process of the incus, were repaired using the autologous total ossicular replacement technique. Post-operative results were evaluated after 6 and 12 months on the basis of average pure tone air conduction and average air–bone gap measured at 0.5, 1, 2 and 3 kHz.Results:Successful rehabilitation of pure tone average to 30 dB or less was achieved in 75 per cent of patients, and air–bone gap to 20 dB or less was attained in 82.5 per cent of patients. Overall mean improvement in air–bone gap was 23.9 ± 8.5 dB (p < 0.001). Mean improvements in air–bone gap were significantly greater (p < 0.05) in the tympanoplasty only group (27.3 ± 6.6 dB) and the intact canal wall tympanoplasty group (25.9 ± 6.3 dB) than in the canal wall down tympanoplasty group (16.3 ± 8.9 dB).Conclusion:This paper describes an autologous total ossicular replacement prosthesis that is biocompatible, stable, magnetic resonance imaging compatible and, above all, results in sustainable hearing improvement.

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