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.

Acquired Hearing Loss and Psychiatric Illness: An Estimate of Prevalence and Co-morbidity in a Geriatric Setting

1985 ◽  
Vol 147 (5) ◽  
pp. 552-556 ◽  
Author(s):  
M. R. Eastwood ◽  
S. Corbin ◽  
M. Reed ◽  
H. Nobbs ◽  
H. B. Kedward
Keyword(s):  
Hearing Loss ◽  
Cognitive Impairment ◽  
Mental Disorders ◽  
Hearing Impairment ◽  
Psychiatric Illness ◽  
The Elderly ◽  
Homes For The Aged ◽  
Co Morbidity ◽  
Acquired Hearing Loss ◽  
The Relationship

Hearing impairment and mental disorders are common among residents of nursing homes and homes for the aged; however, the relationship between sensory deficit and psychiatic illness has been little investigated in this population. The prevalence of hearing impairment, psychiatric illness, and co-morbidity was investigated in a sample of 102 elderly residents from consecutive admissions to a home for the aged. Examining the coincidence of these disorders showed evidence of an association between hearing loss and paraphrenia, and hearing loss and dysphoric states, but not between hearing and cognitive impairment. The results of this survey provide only suggestive evidence regarding aetiology, but strongly support conjoint assessment of the elderly.

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.

Hearing Loss and Risk of Mild Cognitive Impairment and Dementia: Findings from the Singapore Longitudinal Ageing Study

2017 ◽  
Vol 43 (5-6) ◽  
pp. 259-268 ◽  
Author(s):  
Rebecca Heywood ◽  
Qi Gao ◽  
Ma Shwe Zin Nyunt ◽  
Lei Feng ◽  
Mei Sian Chong ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Cognitive Impairment ◽  
Mild Cognitive Impairment ◽  
Hearing Impairment ◽  
Rating Scale ◽  
Normal Subjects ◽  
Clinical Dementia Rating ◽  
Cross Sectional ◽  
Time Activity ◽  
Cognitively Normal

Aim: To investigate the associations between hearing loss and prevalent and incident mild cognitive impairment (MCI), dementia and MCI or dementia (all cases). Methods: Cross-sectional and longitudinal analyses of baseline and follow-up data were performed in a population-based cohort. The baseline sample of 2,599 adults aged ≥55 included 1,515 cognitively normal subjects who were followed up to 8 years. Hearing loss at baseline was determined by the whispered voice test, and MCI and dementia by Mini-Mental State Examination screening, Clinical Dementia Rating scale, neurocognitive tests, MRI, and panel consensus diagnosis. Results: Hearing impairment was associated with increased prevalence of dementia (odds ratio = 3.63, 95% confidence interval [CI] 1.16-11.4, p = 0.027) but not MCI alone or all cases of MCI or dementia, adjusted for sex, age, ethnicity, education, central obesity, hypertension, diabetes, dyslipidemia, smoking, alcohol, leisure time activity, cardiac diseases, and depressive symptoms. Among participants who were cognitively normal at baseline, those with hearing impairment were more likely to develop MCI or dementia (hazard ratio [HR] = 2.30, 95% CI 1.08-4.92, p = 0.032). Hearing loss was associated with elevated but statistically nonsignificant estimates of adjusted HR (1.85, 95% CI 0.78-4.40) for incident MCI alone. Conclusions: Hearing loss is independently associated with prevalent dementia and incident MCI or dementia.

scholarly journals Association of Hearing Loss With Cognitive Decline in Alzheimer’s Disease and Vascular Dementia

2021 ◽  
Author(s):  
Bin Liu ◽  
Ying Zhao ◽  
Guifeng Zhao ◽  
Ling Jin ◽  
Wei Li
Keyword(s):  
Body Mass Index ◽  
Hearing Loss ◽  
Risk Factor ◽  
Cognitive Impairment ◽  
Vascular Dementia ◽  
Hearing Impairment ◽  
Body Mass ◽  
Hba1c Level ◽  
Control Groups ◽  
And Control

Abstract Background: Alzheimer’s disease (AD) and vascular dementia (VaD) are responsible for at least 20 % of diagnosed cases of dementia. It has been established that hearing loss is a risk factor for cognitive impairment and dementia. In this study, the association between hearing impairment and AD/VaD was determined in patients, as well as the characteristics of hearing loss in the two types of dementia.Methods: 70 participants comprising 30 subjects in control group, 20 patients in AD group, and 20 patients in VaD group, were recruited and assessed with respect to pure-tone audiometric test for peripheral auditory system. On admission, age, gender, body mass index (BMI), smoking and drinking habits, diabetes, stroke, family history, as well as levels of cholesterol (TC), triglycerides (TG), fasting blood glucose (FBG), low-density lipoprotein (LDL), and glycosylated hemoglobin A1c (HbA1c) were measured. Hearing loss results and other clinical indexes were analyzed, and their correlations with severity of dementia were determined.Results: Degree of hearing impairment and HbA1c level differed significantly between the AD and control groups. However, only age and degree of hearing impairment were positively correlated with grades of cognitive impairment in AD and control groups. Body mass index (BMI) and smoking history; HbA1c level, grades of cognitive impairment, and degree of hearing impairment, as well as related cognitive impairment, differed significantly between VaD and control groups. Results of logistic regression analysis indicated that the degree of hearing impairment could be a predictor for grades of cognitive impairment in AD and VaD. Moreover, the degree of hearing loss in full band hearing was significantly higher in VaD group than in AD group.Conclusion: Hearing loss may be a potential risk factor for cognitive impairment in AD and VaD, two major types of dementia with different clinical characteristics. The clinical features of hearing loss in the two types dementia might be helpful in their diagnosis and treatment.

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.

Feasibility of smartphone-based hearing-aid apps for patients with mild hearing loss: an exploratory pilot study (Preprint)

2020 ◽  
Author(s):  
Willy Nguyen ◽  
Miseung Koo ◽  
Seung Ha Oh ◽  
Jun Ho Lee ◽  
Moo Kyun Park
Keyword(s):  
Hearing Loss ◽  
Hearing Impairment ◽  
Hearing Aids ◽  
Clinical Performance ◽  
Hearing Aid ◽  
National Standards ◽  
Hearing In Noise ◽  
Mild Hearing Loss ◽  
Consumer Devices ◽  
Selection Of

BACKGROUND Underuse of hearing aids is caused by several factors, including the stigma associated with hearing disability, affordability, and lack of awareness of rising hearing impairment associated with the growing population. Thus, there is a significant opportunity for the development of direct-to-consumer devices. For the past few years, smartphone-based hearing-aid apps have become more numerous and diverse, but few studies have investigated them. OBJECTIVE This study aimed to elucidate the electroacoustic characteristics and potential user benefits of a selection of currently available hearing-aid apps. METHODS We investigated the apps based on hearing-aid control standards (American National Standards Institute) using measurement procedures from previous studies. We categorized the apps and excluded those we considered inefficient. We investigated a selection of user-friendly, low-end apps, EarMachine and Sound Amplifier, with warble-tone audiometry, word recognition testing in unaided and aided conditions, and hearing-in-noise test in quiet and noise-front conditions in a group of users with mild hearing impairment (n = 7) as a pilot for a future long-term investigation. Results from the apps were compared with those of a conventional hearing aid. RESULTS Five of 14 apps were considered unusable based on low scores in several metrics, while the others varied across the range of electroacoustic measurements. The apps that we considered “high end” that provided lower processing latencies and audiogram-based fitting algorithms were superior overall. The clinical performance of the listeners tended to be better when using hearing aid, while the low end hearing-aid apps had limited benefits on the users. CONCLUSIONS Some apps showed the potential to benefit users with limited cases of minimal or mild hearing loss if the inconvenience of relatively poor electroacoustic performance did not outweigh the benefits of amplification.

scholarly journals Do Communication Patterns Affect the Association between Cognitive Impairment and Hearing Loss among Older Adults in Vietnam?

2021 ◽  
Vol 18 (4) ◽  
pp. 1603
Author(s):  
Tran Dai Tri Han ◽  
Keiko Nakamura ◽  
Kaoruko Seino ◽  
Vo Nu Hong Duc ◽  
Thang Van Vo
Keyword(s):  
Older Adults ◽  
Hearing Loss ◽  
Cognitive Impairment ◽  
Cognitive Function ◽  
Vision Loss ◽  
Community Dwelling ◽  
Cross Sectional ◽  
Ordinal Logistic Regression Analysis ◽  
Communication Devices ◽  
Community Dwelling Older Adults

This study examined the prevalence of cognitive impairment among older adults in central Vietnam and the roles of communication (with or without communication devices) in the association between cognitive impairment and hearing loss. This cross-sectional study was performed on 725 randomly selected community-dwelling older adults aged ≥60 years from Thua Thien Hue province, Vietnam. Participants attended a face-to-face survey. Sociodemographic characteristics, social interaction with or without communication devices, health status and cognitive function using the Mini-Mental State Examination were reported. Ordinal logistic regression analysis was performed to quantify the association between hearing loss and cognitive function by frequency of communication with and without devices. Mild and severe cognitive impairment had prevalence rates of 23.6% and 19.3%, respectively. Cognitive impairment was more prevalent among older adults with hearing-loss, vision loss and difficulties with instrumental activities of daily living (IADL). The association between hearing loss and cognitive impairment was not significant when older adults had frequent communication with others using devices. This study presented the relatively high prevalence of cognitive impairment in community-dwelling older adults in Vietnam. Frequent communication using devices attenuated the association between hearing loss and cognitive impairment.

scholarly journals Comparison of intravenous sedation using midazolam during dental treatment in elderly patients with/without dementia: a prospective, controlled clinical trial

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yuichi Tatsuno ◽  
Yoshinari Morimoto ◽  
Megumi Hayashi ◽  
Takatoshi Iida
Keyword(s):  
Regression Analysis ◽  
Cognitive Impairment ◽  
Elderly Patients ◽  
Multiple Regression Analysis ◽  
Multiple Regression ◽  
Intravenous Sedation ◽  
Negative Group ◽  
Severe Dementia ◽  
Positive Group ◽  
Significant Difference

AbstractThe effects of intravenous sedation with midazolam on the cerebral function of elderly patients with severe dementia are unclear. This study aimed to evaluate its effects on parameters such as brainwaves and cerebral blood flow (CBF) and compare them between elderly individuals with dementia and without cognitive impairment. Ten patients with severe dementia and 10 without cognitive impairment were registered. The bispectral index (BIS) and normalized tissue hemoglobin index (nTHI), which reflects CBF using near-infrared spectroscopy, were measured. Midazolam was administered until a Modified Observer’s Assessment of Alertness/Sedation score of 2 was reached. The chi-squared, Mann–Whitney U, Wilcoxon signed-rank, and Friedman tests and multiple regression analysis were used for comparisons. Whereas a similar decline in BIS values was observed in both groups after midazolam administration (P < 0.018), there was a significant decrease by 9% in the nTHI of the dementia-positive group (P < 0.013). However, there was no significant difference in the nTHI between the dementia-positive and dementia-negative group according to the multiple regression analysis (P = 0.058). In the dementia-negative group, none of the measured values differed from the baseline values. In the dementia-positive group, sedation with midazolam resulted in a 9% decrease in the CBF.

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