Compensation capacities of brain in unilateral and bilateral auditory system damage in children

2021 ◽  
Vol 19 (1) ◽  
pp. 23-32
Author(s):  
Grażyna Gwizda ◽  
Aleksandra Marciniak ◽  
Grażyna Mielnik-Niedzielska ◽  
Antoni Niedzielski
Keyword(s):  
Hearing Loss ◽  
Hearing Impairment ◽  
Cognitive Abilities ◽  
Right Hemisphere ◽  
Basic Feature ◽  
Control Group ◽  
Neuronal System ◽  
Bilateral Hearing Loss ◽  
Verbal Scale ◽  
Auditory Dysfunction

Neuroplasticity is a basic feature of neuronal system which provides function rebuilt or developmental dysfunction repair. Hearing impairment can have an impact on intelligence levels, organization and structure of cognitive processes. Cognitive capacities profiles of deaf people present neuropsychological results of functional reorganization of brain. 208 children were accepted for this study. Experimental group consisted of 126 children suffering from sensorineural hearing insufficiency. 26 children were diagnosed with right-sided hearing loss, 34 children were diagnosed with left-sided hearing loss and 66 children were diagnosed with bilateral hearing loss. Control group consisted of 82 normally hearing children, confirmed in audiometric assessment. In order to establish levels of cognitive abilities and intelligence in patients enrolled for the study polish adaptation of Wechsler Intelligence Scale for Children (WISC-R) was administered. Children with bilateral hearing loss obtained worse results in verbal scale compared to well hearing controls. Verbal intelligence in control group was statistically higher than in right-sided auditory dysfunction group. Control group average result in nonverbal scale was statistically significantly higher compared to left-sided hearing loss patients. Children with right-sided auditory dysfunction obtained higher results in nonverbal scale compared to children with left-sided auditory dysfunction. Left-sided hearing impairment group had higher scores in almost all subtests of verbal scale than right-sided hearing impairment group. Left-sided auditory disability enhances linguistic capacity, which indicates compensation abilities of left hemisphere responsible for verbal processes. Right-sided auditory disability enhances analytic processes, visual synthesis and image reasoning, which indicates compensation abilities of right hemisphere responsible for nonverbal processes.

Is there a relationship between premature hair greying and hearing impairment?

2015 ◽  
Vol 129 (11) ◽  
pp. 1097-1100 ◽  
Author(s):  
I Ozbay ◽  
C Kahraman ◽  
C Kucur ◽  
N D Namdar ◽  
F Oghan
Keyword(s):  
Bone Mineral Density ◽  
Hearing Loss ◽  
Hearing Impairment ◽  
Bone Mineral ◽  
High Frequency ◽  
Low Frequency ◽  
Control Group ◽  
Mineral Density ◽  
Low Bone Mineral Density ◽  
High Frequency Audiometry

AbstractObjective:There is evidence for a strong correlation between low bone mineral density and hearing loss. Furthermore, premature hair greying has been associated with low bone mineral density. Hence, this study aimed to investigate, for the first time, the relationship between premature hair greying and hearing impairment.Methods:Fifty patients with premature hair greying (20 women and 30 men), aged under 40 years (mean, 30.1 ± 4.9 years), who had onset of hair greying in their twenties, were recruited, along with 45 age- and sex-matched healthy control subjects (17 women and 28 men; mean age, 28.7 ± 5.1 years). Each participant was tested with low frequency audiometry at 0.125 to 2 kHz, high frequency audiometry at 4 to 8 kHz, and extended high frequency audiometry at 9 to 20 kHz.Results:Hearing thresholds were similar at all frequencies from 0.25 to 4 kHz (p > 0.05); however, significant hearing loss was observed at all frequencies from 8 to 20 kHz in the premature hair greying group compared with the control group (p < 0.05).Conclusion:Patients with premature hair greying had hearing impairment at extended high frequencies. Premature hair greying may be an important risk factor for hearing loss.

scholarly journals Role of oxidative stress in hearing impairment in patients with type two diabetes mellitus

2009 ◽  
Vol 123 (9) ◽  
pp. 957-963 ◽  
Author(s):  
İ Aladag ◽  
A Eyibilen ◽  
M Güven ◽  
Ö Atış ◽  
Ü Erkokmaz
Keyword(s):  
Oxidative Stress ◽  
Nitric Oxide ◽  
Hearing Loss ◽  
Hearing Impairment ◽  
Protein Oxidation ◽  
Serum Levels ◽  
Control Group ◽  
Diabetic Patients ◽  
Enzymatic Antioxidants ◽  
Insulin Dependent Diabetic

AbstractObjective:Although many clinical investigations have found a relationship between hearing loss and diabetes mellitus, the pathophysiology of this effect remains controversial. To date, the mechanisms of hearing loss in diabetic patients have been explained in terms of microangiopathy, neuropathy and encephalopathy. However, many reports indicate that some diabetic complications are associated with oxidative stress related to the diabetes itself. In the present study, we hypothesised that oxidative stress may be a cause of hearing loss in diabetic patients.Methods:The study group comprised non-insulin dependent diabetic patients with no signs of microangiopathy or peripheral neuropathy. The control group comprised sex-, age- and body weight matched, non-diabetic subjects. Auditory function was evaluated using pure tone audiometry and tympanometry. Subjects with normal hearing and sensorineural hearing loss were included in the study, whereas subjects with conductive hearing loss were excluded. Both the study group (n = 63) and the control group (n = 37) were divided into subgroups based on the presence and absence of hearing loss. Oxidative stress was evaluated by measuring serum indicators of protein oxidation and lipid peroxidation, serum levels of nitric oxide and various non-enzymatic antioxidants, and the activity of various enzymatic antioxidants.Results:The non-insulin dependent diabetic patients had significantly higher serum levels of protein oxidation products, nitric oxide, enzymatic antioxidant activity (i.e. glutathione peroxidase and superoxide dismutase), compared with the control group (p < 0.05). When we compared the groups in relation to the presence of hearing loss, the nitric oxide level was significantly increased in the diabetic group with good hearing, compared with diabetic patients with hearing loss (p = 0.014). In the diabetic group, a clear, negative correlation was observed between serum levels of nitric oxide and vitamins C and E, and hearing impairment (r = −0.395,r = −0.318,r = −0.500, respectively). There was also a positive correlation between serum vitamin C concentrations and hearing levels in the control group (r = 0.417).Conclusion:These results suggest that oxidative stress may play an important role in hearing impairment in diabetic patients. In this process, increased protein oxidation appears to be more important than lipid peroxidation. Nitric oxide may have a protective effect on hearing, as may some nonenzymatic antioxidants such as vitamin C and E.

scholarly journals GERIATRIC HEALTH ASSESSMENT AND HEARING LOSS

2018 ◽  
Vol 3 (1) ◽  
pp. 47-50
Author(s):  
T Yu Vladimirova ◽  
L V Aizenshtadt
Keyword(s):  
Hearing Loss ◽  
Geriatric Assessment ◽  
Comprehensive Geriatric Assessment ◽  
Cognitive Abilities ◽  
Geriatric Patients ◽  
Health Assessment ◽  
Negative Influence ◽  
Control Group ◽  
Hearing Function ◽  
Function Test

Aim - to examine the results of a comprehensive geriatric assessment depending on the degree of hearing loss. Material and methods. We examined 110 patients aged from 60 to 90 years with bilateral symmetrical impairment of the hearing function. The research design included examination of the otolaryngologist, auditory function test, and geriatric assessment of neuropsychological status. Two groups were allocated based upon the study of the hearing function: the main group, which included 58 people with moderate hearing loss, and the control group, which included 52 people with significant hearing loss. Results. It was revealed that hearing loss has a negative influence on the cognitive abilities of geriatric patients. With increasing degrees of hearing loss, the progression of dementia is observed. There is a direct correlation between the progression of hearing loss and development of depression in geriatric patients. Conclusion. Our study revealed a relationship between the degree of hearing loss and neuropsychological changes in geriatric patients. Hearing function test as a part of comprehensive geriatric assessment would facilitate the understanding of the causes of neuropsychological disorders in geriatric patients.

scholarly journals Speechreading as a communication mediator

CoDAS ◽  
2014 ◽  
Vol 26 (1) ◽  
pp. 53-60 ◽  
Author(s):  
Letícia Neves de Oliveira ◽  
Alexandra Dezani Soares ◽  
Brasilia Maria Chiari
Keyword(s):  
Hearing Loss ◽  
Hearing Impairment ◽  
Normal Hearing ◽  
Hearing Impaired ◽  
Control Group ◽  
Study Group ◽  
Vocabulary Test ◽  
Profound Hearing Loss ◽  
Significance Level ◽  
Female Speaker

Purposes: To compare the speechreading between individuals with hearing impairment and with normal hearing levels to verify the factors that influence the speechreading among hearing impaired patients. Methods: Forty individuals with severe-to-profound hearing loss aged between 13 and 70 years old (study group) and 21 hearing individuals aged between 17 and 63 years old (control group) were evaluated. As a research instrument, anamnesis was used to characterize the groups; three speechreading instruments, presenting stimuli via a mute video, with a female speaker; and a vocabulary test, to verify their influence on speechreading. A descriptive and analytical statistics (ANOVA test and Pearson's correlation), adopting a significance level of 0.05 (5%). Results: A better performance was observed in the group with hearing impairment in speechreading tests than in the group with hearing individuals. By analyzing the group with hearing loss, there was a mean difference between tests (p<0.001), which also showed correlation between them. Individuals with pre-lingual hearing loss and those who underwent therapy for speechreading had a better performance for most speechreading instruments. The variables gender and schooling showed no influence on speechreading. Conclusion: Individuals with hearing impairment had better performance on speechreading tasks in comparison to people with normal hearing. Furthermore, it was found that the ability to perform speechread might be influenced by the vocabulary, period of installation of the hearing loss, and speechreading therapy.

scholarly journals The Epidemiology of Cognitive Impairment in the Aging Population: Implications for Hearing Loss

2016 ◽  
Vol 21 (Suppl. 1) ◽  
pp. 3-9 ◽  
Author(s):  
Andrea Peracino ◽  
Sergio Pecorelli
Keyword(s):  
Hearing Loss ◽  
Cognitive Impairment ◽  
Hearing Impairment ◽  
Cognitive Abilities ◽  
Financial Burden ◽  
Disease Process ◽  
Functional Independence ◽  
Severe Dementia ◽  
Treatment Review ◽  
Insidious Onset

Cognitive impairment and dementia are characterized by a progressive and devastating reduction in most cognitive abilities, functional independence, and social relationships. Dementia represents a substantial financial burden on society, one that is comparable to the financial burden of heart disease and cancer. Due to its insidious onset, cognitive impairment can be clinically silent for several years; therefore, diagnosis occurs late in the disease process, and treatment becomes almost useless. The identification of predictors of dementia may help identify the pathophysiological mechanisms underlying the disease and lead to the development of a more effective medical diagnosis and therapy, and thus an early treatment. Review of the literature suggests that in those individuals with less cognitive impairment (normal/predementia group), hearing loss has an association with language comprehension, and when cognitive impairment increases (moderate or severe dementia group), the contributing effect of hearing loss as a cognitive ability-impairing factor also increases. Greater understanding of the links between hearing impairment and cognition may have important implications for the screening and diagnosis of cognitive decline in older people with hearing impairment.

scholarly journals Hearing Loss Effect on the Educational Process in Children and Adolescents

2020 ◽  
Vol 19 (4) ◽  
pp. 272-278
Author(s):  
Aleksandr V. Pashkov ◽  
Leyla S. Namazova-Baranova ◽  
Elena A. Vishneva ◽  
Irina V. Naumova ◽  
Irina V. Zelenkova
Keyword(s):  
Hearing Loss ◽  
Children And Adolescents ◽  
Hearing Impairment ◽  
Cognitive Abilities ◽  
Screening Program ◽  
Educational Process ◽  
The World ◽  
Different Types ◽  
Global Population ◽  
Loss Effect

There are about 466 million people (6.1% of global population) with hearing impairment registered in the world according to the data from WHO experts. Their number exceeds 13 million in Russian Federation, and more than 1 million are children. The results of the universal audiological screening program for newborns has shown that 1 child per 1000 newborns is born deaf, another 2–3 children grow deaf during the first years of life. The number of people with hearing impairment will reach 900 million people by 2050 according to the WHO forecasts. Prevention and early diagnosis of hearing loss and rehabilitation of children with such disorders are necessary for avoiding problems with social integration. This review presents the analysis of cognitive abilities development in children and adolescents with different types and degrees of hearing loss with regard to different approaches in their management and rehabilitation.

Hearing loss after general anaesthesia

1987 ◽  
Vol 101 (10) ◽  
pp. 1079-1082 ◽  
Author(s):  
Max Hochermann ◽  
Åke Reimer
Keyword(s):  
Hearing Loss ◽  
General Anaesthesia ◽  
Hearing Impairment ◽  
Surgical Procedure ◽  
Sensorineural Hearing ◽  
Unilateral Hearing Loss ◽  
Unusual Complication ◽  
Bilateral Hearing Loss ◽  
Sensorineural Hearing Impairment ◽  
A Minor

AbstractUnilateral hearing loss has been reported as an unusual complication in general anaesthesia, and so far no reports on bilateral hearing loss have been published. In this paper we present a case with bilateral sensorineural hearing impairment immediately following a minor abdominal surgical procedure. The literature is reviewed and the mechanisms causing hearing loss during anaesthesia are discussed.

Pengaruh bising lalu lintas terhadap penurunan fungsi pendengaran pada juru parkir di kota Denpasar

2013 ◽  
Vol 40 (2) ◽  
Author(s):  
Ni Ketut Susilawati ◽  
Wayan Sudana ◽  
Eka Putra Setiawan
Keyword(s):  
Hearing Impairment ◽  
Noise Exposure ◽  
Traffic Noise ◽  
Hearing Threshold ◽  
Noise Pollution ◽  
Simple Random Sampling ◽  
Cross Sectional Study ◽  
Control Group ◽  
Cross Sectional ◽  
Hearing Function

Background: Noise pollution or noise is an unwanted sound which is disturbing to human beings.However small or soft the sound, if it is undesirable it is considered as noise. Noise induced hearingloss is a sensorineural hearing loss that is commonly encountered second to presbycusis. Purpose: Toknow the effect of traffic noise exposure on hearing impairment to the employees of the Parking DistrictCompany of the Denpasar city and to improve diagnostic detection on hearing impairment caused bynoise. Method: A cross sectional study was conducted at the Parking District Company office. Thepopulations of this study were the employees of the Parking District Company. Samples of this study were the employees who were exposed to traffic noise and control samples were an employee who was unexposed. Samples were selected by simple random sampling. Results: From 40 parking attendants,27 persons (67.5%) aged above 35 years old. The parking attendants who had been working for ten to fifteen years were 36 persons (90%) and no history using ear protection when working. Seven persons(17.5%) had referred DPOAE upon examination with increase hearing threshold on audiogram result.In this study the parking attendants who had hearing deficit induced by noise were 7 persons (17.5%)and only one person (2.5%) in control group. There was a statistically significant effect of traffic noiseto hearing function deficit (p<0.05). Conclusion: Traffic noise has effect in hearing function deficit onthe parking attendants.ORLI Vol. 40 No. 2 Tahun 2010Key words: NIHL, parking attendant, audiometry, DPOAE.

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