scholarly journals A Study of Analysis for Noise Environment and Hearing Loss of Army Aviation Pilots

2021 ◽  
Vol 17 (2) ◽  
pp. 168-179
Author(s):  
Kyucheol Ko ◽  
Oyonghyeok Lee ◽  
Jinsook Kim ◽  
Taewon Lee ◽  
Yerim Shin ◽  
...  
Keyword(s):  
Hearing Loss ◽  
High Frequency ◽  
Age Groups ◽  
Flight Time ◽  
Age Group ◽  
Hearing Conservation ◽  
Noise Environment ◽  
Hearing Thresholds ◽  
Hearing Test ◽  
Aviation Pilots

Purpose: The hearing condition of pilots and the level of noise of helicopter were of interest. This study aimed to analyze the noise environment and hearing loss of the pilots of Korean army aviation.Methods: A total of 242 pilots who did not have any middle ear problems or other ear diseases were selected: 34, 69, 70, and 69 from the age group 20, 30, 40, and 50, respectively. The physical examination records of hearing test from 2015 to 2019 were analyzed. The noise environment was measured at the two indoor positions of pilot and crew and one outside position which was 1 m away from the 8 helicopters owned by Korean army aviation: 500MD, UH-1H, UH-60, KUH-1, AH-1S, BO-105, CH-47, AH-64.Results: The thresholds of pilots were statistically different in term of frequency, age, and flight time (<i>p</i> < 0.05). The range of measured noise level of helicopters at the position of pilot, crew, and outside were 88.6 (AH-1S)-104.1 dB A (CH-47), 93.9 (UH-1H)-108.6 dB A (CH-47), 105 (500MD, AH-1S)-109 dB A (AH-64). When compared hearing thresholds of the pilots to normal groups according to age groups, they were higher at 6 kHz and lower at 0.5 kHz for all age groups.Conclusion: The hearing thresholds of Korean army aviation pilots increased as age and flight time were increased while showing the typical noise-induced hearing loss with high frequency involvement. We suggest that hearing protection education should be provided and the appropriate hearing conservation program should be established for pilot hearing health care in the future.

Vocal Performance Teachers and Hearing Loss

2015 ◽  
Vol 16 (1) ◽  
pp. 15-24
Author(s):  
Vance Gunnell ◽  
Jeff Larsen
Keyword(s):  
Hearing Loss ◽  
Otoacoustic Emissions ◽  
Noise Exposure ◽  
Vocal Performance ◽  
Occupational Noise ◽  
Hearing Conservation ◽  
Occupational Noise Exposure ◽  
Distortion Product ◽  
Hearing Thresholds ◽  
Performance Teachers

Hearing thresholds and distortion product otoacoustic emissions were measured for teachers of vocal performance who were gathered for a national conference. Results showed mean audiometric thresholds to be consistent with noise induced hearing loss, more than what would be expected with normal aging. Years of instruction and age were considered as factors in the hearing loss observed. It was concluded that hearing conservation should be initiated with this group to help raise awareness and protect them from hearing loss due to occupational noise exposure.

scholarly journals Estimation of auditory threshold in an extended frequency range in elderly people

2019 ◽  
Vol 4 (4) ◽  
pp. 4-7
Author(s):  
Lubov V. Aizenshtadt ◽  
Tatyana Yu. Vladimirova ◽  
Alexandr V. Kurenkov ◽  
Anastasia M. Kashapova
Keyword(s):  
Hearing Loss ◽  
Age Group ◽  
Auditory Function ◽  
Frequency Range ◽  
Auditory Thresholds ◽  
High Frequencies ◽  
Age Related ◽  
Hearing Thresholds ◽  
Extended Frequency Range ◽  
Extended Frequency

Objectives - to study hearing thresholds at high frequencies in elderly and senile patients, taking into account the age norm and the presence of comorbid diseases. Material and methods. 111 patients aged from 50 to 97 years (mean age 70.5 ± 2.1) were examined, their age, auditory function, and concomitant diseases were also registered. Results. The measured average auditory thresholds at high frequencies, if compared to the age-related standards for auditory sensitivity, have revealed an underestimated hearing loss in 12.6% of patients. The presence of concomitant diseases has a significant impact on the development of chronic sensorineural hearing loss in each age group. Conclusion. Audiometry in an extended frequency range in elderly patients with concurrent diseases can improve the hearing examination algorithm.

scholarly journals Hearing threshold levels and hearing loss among people in Zhejiang, China: a population-based cross-sectional study

BMJ Open ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. e027152 ◽  
Author(s):  
Dahui Wang ◽  
Huai Zhang ◽  
Haiyan Ma ◽  
Long Zhang ◽  
Lei Yang ◽  
...  
Keyword(s):  
Hearing Loss ◽  
High Frequency ◽  
Age Groups ◽  
Hearing Threshold ◽  
Population Based ◽  
Cross Sectional Study ◽  
Zhejiang Province ◽  
Sectional Study ◽  
Cross Sectional ◽  
High Frequency Hearing Loss

Hearing loss (≥26 dB threshold in the better ear), as a common chronic condition in humans, is increasingly gaining attention. Relevant research in China is relatively scarce, so we conduct a population-based study to investigate the prevalence of hearing loss among age groups, genders and ears in Zhejiang province, China, from September 2016 to June 2018.Study designPopulation-based cross-sectional studyParticipantsA total of 3754 participants aged 18–98 years and living in Zhejiang province, China.Outcome measuresPure-tone audiometric thresholds were measured at frequencies of 0.125–8 kHz for each subject. All participants were asked to complete a structured questionnaire, in the presence of a healthcare official.ResultsThe prevalence of speech-frequency and high-frequency hearing loss was 27.9% and 42.9%, respectively, in Zhejiang. There were significant differences in auditory thresholds at most frequencies among the age groups, genders (male vs female: 31.6%vs24.1% at speech frequency; 48.9% vs 36.8% at high frequency) and ears. In addition to the common factors affecting both types of hearing loss, a significant correlation was found between personal income and speech-frequency hearing loss (OR=0.69, 95% CI 0.52 to 0.92), and between hyperlipidaemia and high-frequency hearing loss (OR=1.45, 95% CI 1.02 to 2.07).ConclusionThe prevalence of hearing loss was high among people living in Zhejiang, particularly males, and in the left ear. Moreover, hearing thresholds increased with age. Several lifestyle and environment factors, which can be influenced by awareness and education, were significantly associated with hearing loss.

scholarly journals U.S. Navy and Marine Corps Hearing Conservation Program, 1995–1999: Mean Hearing Thresholds for Enlisted Personnel by Gender and Age Groups

2002 ◽  
Vol 167 (2) ◽  
pp. 132-135 ◽  
Author(s):  
Bruce K. Bohnker ◽  
John C. Page ◽  
Glen Rovig ◽  
Lawrence S. Betts ◽  
John G. Muller ◽  
...  
Keyword(s):  
Age Groups ◽  
Marine Corps ◽  
Hearing Conservation ◽  
Conservation Program ◽  
Enlisted Personnel ◽  
Hearing Thresholds ◽  
Gender And Age

scholarly journals Differences Between Young and Older Adults in Working Memory and Performance on the Test of Basic Auditory Capabilities†

2022 ◽  
Vol 12 ◽  
Author(s):  
Larry E. Humes ◽  
Gary R. Kidd ◽  
Jennifer J. Lentz
Keyword(s):  
Older Adults ◽  
Working Memory ◽  
Young Adults ◽  
Hearing Loss ◽  
Auditory Processing ◽  
Local Community ◽  
Age Groups ◽  
Age Group ◽  
Regression Analyses ◽  
Age Related

The Test of Basic Auditory Capabilities (TBAC) is a battery of auditory-discrimination tasks and speech-identification tasks that has been normed on several hundred young normal-hearing adults. Previous research with the TBAC suggested that cognitive function may impact the performance of older adults. Here, we examined differences in performance on several TBAC tasks between a group of 34 young adults with a mean age of 22.5 years (SD = 3.1 years) and a group of 115 older adults with a mean age of 69.2 years (SD = 6.2 years) recruited from the local community. Performance of the young adults was consistent with prior norms for this age group. Not surprisingly, the two groups differed significantly in hearing loss and working memory with the older adults having more hearing loss and poorer working memory than the young adults. The two age groups also differed significantly in performance on six of the nine measures extracted from the TBAC (eight test scores and one average test score) with the older adults consistently performing worse than the young adults. However, when these age-group comparisons were repeated with working memory and hearing loss as covariates, the groups differed in performance on only one of the nine auditory measures from the TBAC. For eight of the nine TBAC measures, working memory was a significant covariate and hearing loss never emerged as a significant factor. Thus, the age-group deficits observed initially on the TBAC most often appeared to be mediated by age-related differences in working memory rather than deficits in auditory processing. The results of these analyses of age-group differences were supported further by linear-regression analyses with each of the 9 TBAC scores serving as the dependent measure and age, hearing loss, and working memory as the predictors. Regression analyses were conducted for the full set of 149 adults and for just the 115 older adults. Working memory again emerged as the predominant factor impacting TBAC performance. It is concluded that working memory should be considered when comparing the performance of young and older adults on auditory tasks, including the TBAC.

scholarly journals The DizzyQuest: relation between self-reported hearing loss, tinnitus and objective hearing thresholds in patients with Meniere’s disease

2021 ◽  
Author(s):  
E. C. Martin ◽  
R. Verkaik ◽  
J. J. A. Stultiens ◽  
M. R. van de Berg ◽  
A. M. L. Janssen ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Daily Life ◽  
Meniere’S Disease ◽  
Ménière’S Disease ◽  
Tinnitus Severity ◽  
Hearing Thresholds ◽  
Hearing Test ◽  
Ménière's Disease ◽  
The Relationship ◽  
Loss Severity

Abstract Background Combining a mobile application-based vestibular diary called the DizzyQuest and an iPad-based hearing test enables evaluation of the relationship between experienced neuro-otological symptoms and hearing thresholds in daily life setting. The aim was to investigate the relationship between self-reported hearing symptoms and hearing thresholds in patients with Meniere’s disease (MD), using the DizzyQuest and the iPad-based hearing test simultaneously. Methods The DizzyQuest was administered for 3 weeks in 21 patients. Using the experience-sampling-method (ESM), it assessed hearing loss and tinnitus severity for both ears separately. Each day after the DizzyQuest, an iPad-based hearing test was used to measure hearing thresholds. A mixed model regression analysis was performed to investigate relationships between hearing thresholds and self-reported hearing loss and tinnitus severity. Results Fifteen patients were included. Overall, pure-tone averages (PTAs) were not correlated with self-reported hearing loss severity and tinnitus. Individual differences in PTA results between both ears did not significantly influence the difference in self-reported hearing loss severity between both ears. Self-reported hearing loss and tinnitus scores were significantly higher in ears that corresponded with audiometric criteria of MD (p < 0.001). Self-reported tinnitus severity significantly increased with self-reported hearing loss severity in affected (p = 0.011) and unaffected ears (p < 0.001). Conclusion Combining the DizzyQuest and iPad-based hearing test, facilitated assessment of self-reported hearing loss and tinnitus severity and their relationship with hearing thresholds, in a daily life setting. This study illustrated the importance of investigating neuro-otological symptoms at an individual level, using multiple measurements. ESM strategies like the DizzyQuest should therefore be considered in neuro-otological research.

scholarly journals Characterization of Sensorineural Hearing Loss in Children with Alport Syndrome

Life ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 360
Author(s):  
Jan Boeckhaus ◽  
Nicola Strenzke ◽  
Celine Storz ◽  
Oliver Gross ◽  
◽  
...  
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Hearing Impairment ◽  
Alport Syndrome ◽  
Age Groups ◽  
Hearing Impaired ◽  
Sensorineural Hearing ◽  
Pure Tone Average ◽  
Hearing Thresholds

Most adults with Alport syndrome (AS) suffer from progressive sensorineural hearing loss. However, little is known about the early characteristics of hearing loss in children with AS. As a part of the EARLY PRO-TECT Alport trial, this study was the first clinical trial ever to investigate hearing loss in children with AS over a timespan of up to six years Nine of 51 children (18%) had hearing impairment. Audiograms were divided into three age groups: in the 5–9-year-olds, the 4-pure tone average (4PTA) was 8.9 decibel (dB) (n = 15) in those with normal hearing and 43.8 dB (n = 2, 12%) in those with hearing impairment. Among the 10–13-year-olds, 4PTA was 4.8 dB (healthy, n = 12) and 41.4 dB (hearing impaired, n = 6.33%). For the 14–20-year-olds, the 4PTA was 7.0 dB (healthy; n = 9) and 48.2 dB (hearing impaired, n = 3.25%). On average, hearing thresholds of the hearing impaired group increased, especially at frequencies between 1–3 kHz. In conclusion, 18% of children developed hearing loss, with a maximum hearing loss in the audiograms at 1–3 kHz. The percentage of children with hearing impairment increased from 10% at baseline to 18% at end of trial as did the severity of hearing loss.

scholarly journals Extended High Frequency Audiometry for Revealing Sudden Sensory Neural Hearing Loss in Acute Tinnitus Patients

2020 ◽  
Author(s):  
Rani Abu-Eta ◽  
Haim Gavriel ◽  
Jacob Pitaro
Keyword(s):  
Hearing Loss ◽  
High Frequency ◽  
Normal Limits ◽  
High Frequency Audiometry ◽  
Hearing Test ◽  
Sensory Neural ◽  
Acute Tinnitus ◽  
Asymmetric Sensorineural Hearing Loss ◽  
Normal Standard ◽  
Sensory Neural Hearing Loss

Abstract Introduction The measurement of extended high-frequency (EHF) audiometry has become more popular recently, mainly in connection with ototoxicity and noise-induced hearing loss. New-onset tinnitus evaluation includes a standard hearing test that shows no pathology. Objective The aim of the present study was to evaluate the possibility that acute tinnitus is essentially connected to sudden sensory neural hearing loss (SSNHL), by utilizing EHF audiometry in cases in which standard audiometry for frequencies between 8 kHZ to 8000 Hz is within normal limits. Methods A retrospective study was conducted between January 2009 and May 2014 that included all patients presenting with acute tinnitus and normal standard audiometry. All patients underwent EHF audiometry and were treated accordingly. Results Thirty-two patients with acute tinnitus and asymmetric sensorineural hearing loss on EHF audiometry were identified. The average deltas between the ears were between 9.2 and 33 dB (worse in the affected ear). Conclusion Extended high-frequency audiometry up to 20,000 Hz should be performed in all patients with acute tinnitus and standard audiometry within normal limits.

scholarly journals Contralateral Occlusion Test (COT): the effect of external ear canal occlusion with aging

CoDAS ◽  
2019 ◽  
Vol 31 (3) ◽  
Author(s):  
Luís Roque Reis ◽  
Luís Castelhano ◽  
Filipe Correia ◽  
Pedro Escada
Keyword(s):  
Hearing Loss ◽  
Tuning Fork ◽  
Age Groups ◽  
Sound Field ◽  
External Ear ◽  
Ear Canal ◽  
Occlusion Test ◽  
External Ear Canal ◽  
Hearing Thresholds ◽  
And Gender

ABSTRACT Purpose This study aimed to evaluate the effects of complete external ear canal occlusion on hearing thresholds with aging. The goal was to decide which tuning fork is more appropriate to use for the contralateral occlusion test (COT), in individuals of different ages. Methods Forty-two normal hearing subjects between 21 and 67 years were divided into three age groups (20-30 years, 40-50 years, and 60-70 years). Participants underwent sound field audiometry tests with warble tones, with and without ear canal occlusion. Each ear was tested with the standard frequencies (250, 500, 1000, and 2000 Hz). The contralateral ear was suppressed by masking. Results Hearing thresholds showed an increase as the frequency increased from 20.85 dB (250 Hz, 20-30 years group) to 48 dB (2000 Hz, 60-70 years group). The threshold differences between occlusion and no occlusion conditions were statistically significant and increased ranging from 11.1 dB (250 Hz, 20-30 years group) to 32 dB (2000 Hz, 20-30 years group). We found statistically significant differences for the three age groups and for all evaluations except to 500 Hz difference and average difference. The mean hearing loss produced by occlusion at 500 Hz was approximately 19 dB. We found no statistically significant differences between right and left ears and gender for all measurements. Conclusion We conclude that the use of the 512 Hz tuning fork is the most suitable for COT, and its use may allow clinicians to distinguish mild from moderate unilateral conductive hearing loss.

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