Highlights:
The development of new bone formation after the cochlear implants may adversely increase the long-term hearing loss as per a study in Radiological Society of North America, published in Radiology.
Clinical advancements and surgical techniques have enabled for ready availability of cochlear implantation to aid hearing loss. This, in turn, also urges for novel monitoring and detecting techniques for complications like new bone formation arising due to it. - Clinical advancements have enabled the ready availability of cochlear implantation to aid hearing loss
- However, the technical advancements have also provided insights into the negative impacts of cochlear implants
- New bone formation after the cochlear implants may adversely affect the hearing loss
Hearing Loss Calculator
Hearing loss calculator is a quick online screening test to check for hearing loss. Result from the test also has important tips to protect your hearing.
Hearing loss calculator is a quick online screening test to check for hearing loss. Result from the test also has important tips to protect your hearing.
‘Cochlear implantations may greatly hamper the hearing of patients in the long term due to its negative consequences like new bone formation in the inner ears.’
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Cochlear Implantations Aid Hearing
Cochlear implantations are established as one of the potent ways to manage severe hearing loss. Although the device does not restore normal hearing, they aid in better recognition and understanding of the speech.The device has two parts:
- An external part - sits behind the ear
- Second part - surgically implanted beneath the skin to stimulate the cochlear nerves
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New Device to Treat Hearing Loss Discovered
An electrically conductive membrane implanted inside a model ear simulates cochlear hairs by converting sound waves into electrical pulses and the wiring connects the prototype to a device that collects the output current signal.
An electrically conductive membrane implanted inside a model ear simulates cochlear hairs by converting sound waves into electrical pulses and the wiring connects the prototype to a device that collects the output current signal.
Complication of Cochlear Implants
The complications arising from cochlear implants are reported to be quite rare. However, studies have revealed incidences of problems like fibrosis, inflammation, and even new bone formation.Moreover, the visualization and detection of new bone formation within the body (in vivo) become challenging, despite its potential clinical implications.
“Such subtle changes are challenging to visualize in vivo, in particular in the vicinity of a metallic implant causing artifacts on computed tomography images. However, through the new availability of an ultra-high-resolution CT scanner, we were encouraged to investigate this,” says study co-lead author Floris Heutink, MD, MSc, from the department of otorhinolaryngology at Radboud University Medical Center (Radboudumc) in Nijmegen, the Netherlands.
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Cochlear Implants: Kids Provided With These Implants Tend To Speak Early
Kids those who have been born with impaired hearing tend to speak up early in life if they are implanted with cochlear implants during infancy, finds a new study.
Kids those who have been born with impaired hearing tend to speak up early in life if they are implanted with cochlear implants during infancy, finds a new study.
Clinical Advancements
The study “Ultra-High-Resolution CT to Detect Intracochlear New Bone Formation after Cochlear Implantation” intended to detect the new bone formation in vivo by utilizing ultra-high spatial resolution CT (UHRCT) among 123 cochlear implant patients.It was found that 83 (68%) patients (among the 123 patients) had new bone formation within 4 years of implantation, especially at the base of the cochlea. In addition, the new bone formation was also associated with long-term residual hearing loss in the group.
“As indicated by our study, there is a correlation between new bone formation and long-term residual hearing loss,”says study co-author Berit M. Verbist, MD, PhD, from the departments of radiology at Radboudumc and Leiden University Medical Center in Leiden, the Netherlands.
Cochlear Implants Should Be Recommended More For Adults
Hearing specialists have released a new set of recommendations emphasizing that cochlear implants should be offered to adults who have moderate to severe or worse hearing loss.
Hearing specialists have released a new set of recommendations emphasizing that cochlear implants should be offered to adults who have moderate to severe or worse hearing loss.
Negative Outcomes of New Bone Formation
There are several negative consequences to cochlear implant electrodes due to new bone formation:- Affects the spread of electrical current within the cochlea
- This leads to complex device fitting and channel interaction
- Overall poor hearing outcome
- Complicates future gene therapies for cochlear function restoration
Need for Better Insights
As the study demonstrates several ill consequences of new bone formation, the evidence imparts an urgent need for diagnostic modalities to further improve the therapeutic consequences of cochlear implants.“Last but not least, new bone formation may complicate reimplantation surgery. This technique will be a valuable tool to gain insight into occurrence, time course and the pathophysiology of this process and maybe used to evaluate still-to-be-developed treatments against new bone formation,” says Dr. Verbist.
Reference:
- Ultra-High-Resolution CT to Detect Intracochlear New Bone Formation after Cochlear Implantation - (https://pubs.rsna.org/doi/10.1148/radiol.211400)
Source-Medindia
