Cochlear Implants might Consequently Drive Hearing Loss


Cochlear nerves are the spiral, fluid-filled constructions current within the internal ear for transmitting the sound throughout sensory nerves to the mind.

The issues arising from cochlear implants are reported to be fairly uncommon. However, research have revealed incidences of issues like

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Moreover, the visualization and detection of latest bone formation throughout the physique (in vivo) change into difficult, regardless of its potential medical 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 examine co-lead creator Floris Heutink, MD, MSc, from the division of otorhinolaryngology at Radboud University Medical Center (Radboudumc) in Nijmegen, the Netherlands.

Clinical Advancements

The examine “Ultra-High-Resolution CT to Detect Intracochlear New Bone Formation after Cochlear Implantation” meant to detect the brand new bone formation in vivo by using ultra-high spatial decision CT (UHRCT) amongst 123 cochlear implant sufferers.

It was discovered that 83 (68%) sufferers (among the many 123 sufferers) had new bone formation inside 4 years of implantation, particularly on the base of the cochlea. In addition, the new bone formation was additionally related to long-term residual listening to loss within the group.

“As indicated by our study, there is a correlation between new bone formation and long-term residual hearing loss,”
says examine co-author Berit M. Verbist, MD, PhD, from the departments of radiology at Radboudumc and Leiden University Medical Center in Leiden, the Netherlands.

Negative Outcomes of New Bone Formation

There are a number of adverse penalties to cochlear implant electrodes attributable to new bone formation:

  • Affects the unfold {of electrical} present throughout the cochlea
  • This results in advanced machine becoming and channel interplay
  • Overall poor listening to consequence
  • Complicates future gene therapies for cochlear perform restoration

Need for Better Insights

As the examine demonstrates a number of ailing penalties of latest bone formation, the proof imparts an pressing want for diagnostic modalities to additional enhance the therapeutic penalties 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.


  1. Ultra-High-Resolution CT to Detect Intracochlear New Bone Formation after Cochlear Implantation

Source: Medindia

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