Breaking News
December 19, 2018 - Researchers uncover genes that play a key role in the inactivation of X chromosomes
December 19, 2018 - The case for the federal minister of health to recall them
December 19, 2018 - Regular theatre and cinema visits keeps depression away in seniors finds study
December 19, 2018 - Personalization techniques give a new lease of life to anticancer vaccines
December 19, 2018 - Research opens door to development of drug or vaccine for late-onset Alzheimer’s
December 19, 2018 - Single workout can boost metabolism for days
December 19, 2018 - UI study leads to better understanding of signaling capacity between neurons
December 19, 2018 - Gut microbiome plays role in immune system regulation, study finds
December 19, 2018 - How MAPK translocation leads to drug resistance in melanoma
December 19, 2018 - Increasing prevalence of antibiotic resistance in the U.S. linked with occasional use
December 19, 2018 - Mind-body exercises may improve cognition in older adults
December 19, 2018 - Hepatitis C drug can eliminate chikungunya, yellow fever virus
December 19, 2018 - Separating male and female mice changes the way they smell, shows study
December 19, 2018 - FDA Approves Genentech’s Tecentriq in Combination With Avastin and Chemotherapy for the Initial Treatment of Metastatic Non-Squamous Non-Small Cell Lung Cancer
December 19, 2018 - Mediterranean Diet for Osteoarthritis | About OA
December 19, 2018 - Successful bladder repair using silk fibroid scaffolds
December 19, 2018 - Quidel receives CE mark to use Sofia 2 Lyme+ Fluorescent Immunoassay with Sofia 2 analyzer
December 19, 2018 - Horizon Discovery partners with C4XD to validate novel synthetic lethal oncology targets
December 19, 2018 - Research suggests a promising therapeutic target to treat or prevent metabolic disorders
December 19, 2018 - Split liver transplants could save children on wait list finds study
December 19, 2018 - Michigan-based food manufacturer ordered to discontinue operations after recurrent food safety violations
December 19, 2018 - HPV discovery could lead to new treatments for cervical cancer
December 19, 2018 - Real-time neurofeedback controls Parkinson’s brainwaves
December 19, 2018 - Incorrect prescribing warnings in electronic prescribing systems
December 19, 2018 - New $1.6 million NIH grant supports study on a gene vital to circadian rhythms
December 19, 2018 - Racial Disparities Seen Among Teens Undergoing Flu Vaccination
December 19, 2018 - To resolve inflammation, location matters
December 19, 2018 - Dancing could help older women to perform their daily tasks
December 19, 2018 - Research identifies new therapeutic target for cancer treatment and tissue regeneration
December 19, 2018 - Energy costs, social isolation contribute to health risk of older adults in extreme weather
December 19, 2018 - Potential combination therapy against rare disease of the bone marrow could improve treatment
December 19, 2018 - Researchers aim to improve cognition, reverse weight gain in schizophrenia
December 19, 2018 - UC San Diego Health offers new DRG stimulation device for phantom limb pain
December 19, 2018 - Study examines relationship between growth restriction and risk of childhood mortality
December 19, 2018 - New study provides insights on increased risk of suicide in young patients visiting ED
December 19, 2018 - AHA: Thyroid Problems Linked to Worsening Heart Failure
December 19, 2018 - World-first coeliac disease vaccine enters Phase 2 trials
December 19, 2018 - RNA sequencing offers novel insights into the microbiome
December 19, 2018 - A promising, effective vaccine for common respiratory disease
December 19, 2018 - Protein may slow progression of emphysema, study finds
December 19, 2018 - Studying atrial fibrillation — and exploring new frontiers in precision health
December 19, 2018 - A New Way To Get College Students Through A Psychiatric Crisis — And Back To School
December 19, 2018 - Optum, UnitedHealthcare take action to help people affected by North Carolina winter storms
December 18, 2018 - Weight change in middle-aged, elderly Chinese Singaporeans related to increased risk of death
December 18, 2018 - Immune cells sacrifice themselves to protect us from invading bacteria
December 18, 2018 - Watching brain cells fire, with a twist of gravitational waves
December 18, 2018 - 2018 in Review
December 18, 2018 - Getting the Most Out of the CLARITY Technique
December 18, 2018 - NVF shoes provide a viable option for track and road racing
December 18, 2018 - CRISPR may restore effectiveness of chemotherapies used to treat lung cancer
December 18, 2018 - New app accurately measures and charts progression of skin wounds
December 18, 2018 - Persistent Discrimination ID’d Among Physician Mothers
December 18, 2018 - Cellphone technology developed to detect HIV
December 18, 2018 - A Stanford doctor hits the field with the 49ers — as their airway management physician
December 18, 2018 - The Rise of Anxiety Baking
December 18, 2018 - Just one night of sleep deprivation increases the urge to eat
December 18, 2018 - Study reveals mechanism behind failed remyelination in MS
December 18, 2018 - New genetic testing method increases the precision of biomarker analysis
December 18, 2018 - Simple technique to effectively treat underdiagnosed cause of debilitating chest pain
December 18, 2018 - Barbershop-based medical intervention can successfully lower blood pressure, new data shows
December 18, 2018 - Food labels have caused changes in consumers’ intake and industry’s use of key additives
December 18, 2018 - Sickest children could benefit from split liver transplants
December 18, 2018 - Scientists create patient-specific model to identify most effective treatment for appendix cancer
December 18, 2018 - ‘Little Foot’ endocast reveals a small brain combining ape-like and human-like features
December 18, 2018 - New therapy for childhood blindness shows ‘very promising’ results
December 18, 2018 - Researchers discover promising new compound against Buruli ulcer
December 18, 2018 - Study finds significant use of traditional, complementary and alternative medicines in Sub-Saharan Africa
December 18, 2018 - California Farm Implicated in Outbreak of E. coli Tied to Romaine Lettuce
December 18, 2018 - Mobile health has power to transform HIV/AIDS nursing
December 18, 2018 - Celiac Vaccine in Clinical Trials at Columbia
December 18, 2018 - Research into mental health first aid prompts practical guidance and resources for workplace
December 18, 2018 - Researcher conducts study to investigate peripheral blood markers of Alzheimer’s disease
December 18, 2018 - Researchers identify link between mucus in the small airways and pulmonary fibrosis
December 18, 2018 - EU Commission’s Health Policy Platform to host EKHA program on transplantation
December 18, 2018 - Survivors of childhood Hodgkin lymphoma have high risk of developing solid tumors
December 18, 2018 - Small changes to cafeteria design can get kids to eat healthier, new assessment tool finds
December 18, 2018 - From Machines to Cyclic Compounds
December 18, 2018 - New study reveals best assessment tools to establish delirium severity
December 18, 2018 - Rice University scientists develop synthetic protein switches to control electron flow
December 18, 2018 - Home-based pulmonary function monitoring for teens with Duchenne muscular dystrophy
Older adults fitted with cochlear implants exhibit poor brain function

Older adults fitted with cochlear implants exhibit poor brain function

image_pdfDownload PDFimage_print
Credit: CC0 Public Domain

Older adults fitted with a cochlear implant to compensate for severe hearing loss have significantly poorer cognitive function than their normal-hearing counterparts, reveals a new study. Hearing loss is a risk factor for cognitive decline and dementia, so this new finding suggests cochlear implants cannot fully compensate for this deterioration in brain function. Publishing in Frontiers in Neuroscience, the study authors suggest that rehabilitation should be adjusted to the cognitive profile of the cochlear implant patient. Moreover, further long-term studies are vital for determining the impact of cochlear implants on cognition and its decline.

“Even when we took differences such as age, sex and education level into account, elderly adults fitted with a cochlear implant performed significantly lower in a cognitive function test than those with normal hearing,” says Dr. Annes Claes, who carried out this research at the Department of Otorhinolaryngology, Antwerp University Hospital, Belgium.

Professor Griet Mertens, who coordinates the cognitive hearing project at the Antwerp University Hospital continues, “Cochlear implants may have a positive effect on the cognitive functions of these patients. Nevertheless, our results point out that cochlear implant recipients do not align with their normal-hearing peers in the longer-term after cochlear implantation.”

Hearing loss is a risk factor for accelerated cognitive decline and dementia in older adults. As age-related hearing loss is very common in the aging population, it means a lot of older people are at risk of brain-function decline. Moreover, the more severe the hearing loss, the higher the risk for dementia. This has stimulated research into whether treating hearing loss by means of hearing aids or cochlear implants could improve cognition in older adults.

“The economic and social burden of dementia is enormous and there is currently no cure,” explains Professor Dr. Paul Van de Heyning, co-author, also based at Antwerp University Hospital. “The first studies with cochlear implants were promising, indicating an increase in cognition after implantation. However, long-term conclusive information about cochlear implant effects are not yet available, simply because it takes many years to collect these data.”

In the current absence of long-term data, Claes and her colleagues devised a study to examine whether severely hearing-impaired individuals fitted with a cochlear implant had age-expected cognitive function. To do this, they compared cochlear implant recipients over the age of 55, who had one or up to eighteen years of experience with the device, to a group of normal-hearing similar-aged adults using a specialized cognitive function test.

Claes explains, “If we used a regular cognitive test, the hearing-impaired individuals would have been at a disadvantage. We developed the RBANS-H test, which provides both auditory and visual information to the recipient, instead of just an auditory presentation.”

Their findings from this comparison were quite clear, showing a large difference in the cognitive function of each group. Even after taking differences such as age, sex and education level into account, the elderly adults fitted with cochlear implants performed significantly lower in the cognitive function test.

“More studies are needed to ultimately assess in which way cochlear implants influence the natural cognitive decline. We have some preliminary results from a collaborative multi-center study showing there is a cognitive improvement after cochlear implantation but no normalization. This is in line with our current findings that imply a cochlear implant is not able to keep the older adults with a severe hearing loss at an age-expected level of cognition or to completely restore the level of cognition,” says Mertens.

She concludes, “Additional rehabilitation in the long-term after implantation, tailored to the cognitive profile of individuals, may be appropriate for cochlear implant patients.”


Explore further:
Comparing predictors of how cochlear recipients will hear speech

More information:
Annes J. Claes et al, Impaired Cognitive Functioning in Cochlear Implant Recipients Over the Age of 55 Years: A Cross-Sectional Study Using the Repeatable Battery for the Assessment of Neuropsychological Status for Hearing-Impaired Individuals (RBANS-H), Frontiers in Neuroscience (2018). DOI: 10.3389/fnins.2018.00580

Journal reference:
Frontiers in Neuroscience

Provided by:
Frontiers

Tagged with:

About author

Related Articles