Marked High-Frequency Hearing Loss in Children: A Problem in Early Identification

1978 ◽  
Vol 43 (1) ◽  
pp. 110-110
Author(s):  
Ralph O. Coleman ◽  
Rodney O. Pelson

In the August 1977 issue, the article by Ralph O. Coleman and Rodney O. Pelson, “Marked High-Frequency Hearing Loss in Children: A Problem in Early Identification,” contains an error. In the second line of the abstract, the word “spectral” should be substituted for the word “special.” The sentence should read, “The limitations of noisemakers and speech in detecting marked high-frequency hearing impairment in young children are illustrated by spectral analysis.”

1977 ◽  
Vol 42 (3) ◽  
pp. 335-339 ◽  
Author(s):  
Ralph O. Coleman ◽  
Rodney O. Pelson

The limitations of noisemakers and speech in detecting marked high-frequency hearing impairment in young children are illustrated by special analysis. The use of high-pass filtering of noisemakers and speech at 6000 Hz and above is recommended as one practical means of identifying losses of this type in children too young for voluntary pure-tone testing.


2021 ◽  
Vol 3 (1) ◽  
pp. 005-008
Author(s):  
Kiran Naik ◽  
Ravi KS ◽  
Pragati

Background: Hearing loss is often thought of as a natural phenomenon of the aging process. However younger people with repeated usage of ear phone music are reporting nowadays with hearing impairment and more during this COVID pandemic era. In today’s society, these devices are indispensable and are part of day‑to‑day life and because of the restriction on outdoor movement in COVID pandemic more and more people are reliant on ear phone music to allay boredom. Hence, this study was conducted to create awareness regarding prolonged exposure to loud noise either through an MP3 player or cell phone music. Materials and Methods: A prospective study was done compromising 400 students from Shri Adichunchanagiri Institute of Medical Sciences from March 2020 to December 2020. They were divided into four groups using a questionnaire, Group A comprising 100 students who had a habit of listening to music through ear phones at least 2 h a day, Group B comprising 100 students who are used to earphone music less than 1 h per day and Group C comprising of 100 students who very occasionally use ear phones, but hear music mostly through speakers and Group D comprising of 100 students who are not used to ear phone music. All the 400 students studied were attending online classes as per the college schedule which constituted 3-4 hours daily. All the groups were subjected to pure tone audiometry when they reported back to their regular offline classes as the pandemic reduced in January 2021 and the audiogram obtained. Results and Observations: The study revealed high frequency hearing loss in 6% of Group A and 2% in Group B; whereas, in there were no hearing impairment in Groups C and D indicating a significant role of prolonged ear phone music as a cause of high frequency hearing loss in students. The thin percentage and absence of hearing loss in Groups B, C, and D suggests the impact of the duration of exposure also has a role in the pathology. Conclusion: This study proves beyond doubt that the prolonged usage of loud ear phone music is harmful to the ears and also the COVID induced movement restriction precipitated the indiscriminate use of ear phone music which further increased the causation.


1968 ◽  
Vol 11 (1) ◽  
pp. 204-218 ◽  
Author(s):  
Elizabeth Dodds ◽  
Earl Harford

Persons with a high frequency hearing loss are difficult cases for whom to find suitable amplification. We have experienced some success with this problem in our Hearing Clinics using a specially designed earmold with a hearing aid. Thirty-five cases with high frequency hearing losses were selected from our clinical files for analysis of test results using standard, vented, and open earpieces. A statistical analysis of test results revealed that PB scores in sound field, using an average conversational intensity level (70 dB SPL), were enhanced when utilizing any one of the three earmolds. This result was due undoubtedly to increased sensitivity provided by the hearing aid. Only the open earmold used with a CROS hearing aid resulted in a significant improvement in discrimination when compared with the group’s unaided PB score under earphones or when comparing inter-earmold scores. These findings suggest that the inclusion of the open earmold with a CROS aid in the audiologist’s armamentarium should increase his flexibility in selecting hearing aids for persons with a high frequency hearing loss.


Author(s):  
Wei Gong ◽  
Liangliang Zhao ◽  
Ling Li ◽  
Thais C. Morata ◽  
Wei Qiu ◽  
...  

A survey was administered to 385 noise-exposed workers from an auto parts factory and 1268 non-noise-exposed health department employees in China. Individual 8 h A-weighted equivalent sound levels (LAeq,8h), earplug personal attenuation ratings (PARs), and pure-tone audiometric tests were performed. The average LAeq,8h of noise-exposed workers was 87 dB (A) with a mean PAR of 7 dB. The prevalence of high-frequency hearing loss was 65% for noise-exposed workers and 33% for the non-noise-exposed employees. The use of earplugs had no observable effect on the prevalence of high-frequency hearing loss of the study participants (OR 0.964, 95% CI 0.925–1.005, p = 0.085). No significant relationship between the effectiveness offered by earplug use and high-frequency hearing thresholds at 3, 4, and 6 kHz was found (t = −1.54, p = 0.125). The mandatory requirement of earplug use without individualized training on how to wear HPDs correctly had no detectable effect on the prevention of hearing loss at the auto parts factory. The hearing conservation program at the surveyed factory was not effective. Periodic hearing tests, earplug fit testing, expanding the offer of different types of hearing protection, and employee education about the importance of protecting their hearing were recommended to the occupational health and safety program.


1998 ◽  
Vol 79 (5) ◽  
pp. 2603-2614 ◽  
Author(s):  
Stephanie Carlson ◽  
James F. Willott

Carlson, Stephanie and James F. Willott. Caudal pontine reticular formation of C57BL/6J mice: responses to startle stimuli, inhibition by tones, and plasticity. J. Neurophysiol. 79: 2603–2614, 1998. C57BL/6J (C57) mice were used to examine relationships between the behavioral acoustic startle response (ASR) and the responses of neurons in the caudal pontine reticular formation (PnC) in three contexts: 1) responses evoked by basic startle stimuli; 2) the prepulse inhibition (PPI) paradigm; and 3) the effects of high-frequency hearing loss and concomitant neural plasticity that occurs in middle-aged C57 mice. 1) Responses (evoked action potentials) of PnC neurons closely paralleled the ASR with respect to latency, threshold, and responses to rapidly presented stimuli. 2) “Neural PPI” (inhibition of responses evoked by a startle stimulus when preceded by a tone prepulse) was observed in all PnC neurons studied. 3) In PnC neurons of 6-mo-old mice with high-frequency (>20 kHz) hearing loss, neural PPI was enhanced with 12- and 4-kHz prepulses, as it is behaviorally. These are frequencies that have become “overrepresented” in the central auditory system of 6-mo-old C57 mice. Thus neural plasticity in the auditory system, induced by high-frequency hearing loss, is correlated with increased salience of the inhibiting tones in both behavioral and neural PPI paradigms.


2018 ◽  
Vol 39 (04) ◽  
pp. 377-389 ◽  
Author(s):  
Susan Scollie ◽  
Danielle Glista

AbstractThis article provides a review of the current literature on the topic of frequency lowering hearing aid technology specific to the treatment of severe and profound levels of hearing impairment in child and adult listeners. Factors to consider when assessing listener candidacy for frequency lowering technology are discussed. These include factors related to audiometric assessment, the listener, the type of hearing aid technology, and the verification and validation procedures that can assist in determining candidacy for frequency lowering technology. An individualized candidacy assessment including the use of real-ear verification measures and carefully chosen validation tools are recommended for listeners requiring greater audibility of high-frequency sounds, when compared with amplification via conventional hearing aid technology.


PLoS ONE ◽  
2016 ◽  
Vol 11 (3) ◽  
pp. e0151467 ◽  
Author(s):  
Abhijit Dandapat ◽  
Benjamin J. Perrin ◽  
Christine Cabelka ◽  
Maria Razzoli ◽  
James M. Ervasti ◽  
...  

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