Learning objectives
Know the indications and management modalities of cochlear implants in adults
Know how to perform and analyze preoperative cochlear implantation imaging
Know how to perform and analyze postoperative cochlear implantation imaging
Background
1 Epidemiological data
Hearing loss is a public health issue.
For instance,
its prevalence in France is 11% (according to the study of the French Research Center on the psychosocial aspect of disability in August 2010),
of these,
360 000 have profound or total hearing loss (5 per 1000 people).
Elderly people are much more likely to have a hearing impairment than younger people.
As more and more people live to older ages,
the prevalence of chronic conditions that cause functional impairment is expected to...
Findings and procedure details
1 Medical Care
Cochlear implantation requires a multi-disciplinary team approach.
Patient care is composed of 3 stages: before,
during and after implant surgery.
1.1 Preoperative Assessment and management
Preoperative CI assessment needs a multidisciplinary team approach.
The team concept allows for an exchange of information between the surgeon and other members of the implant and rehabilitation process.
The preoperative assessment,
intervention and follow-up (adjustments,
rehabilitation) must be performed by the same team.
Before surgery,
it is beneficial that the patient gets in contact with people...
Conclusion
Cochlear implantation are indicated in severe to profound bilateral sensorineural hearing loss
Pre-operative CI imaging with CT scan and an MRI contributes to the etiological deafness,
check for absolute contraindication,
verify the surgical feasibility and help in the choice of length of the electrode.
The permeability of the scala tympani is fundamental to check by imaging.
CBCT is the post-operative imaging technique of choice,
because it provides better resolution and less of metal artifacts and radiation than CT scan.
It is able to provide a...
Personal information
Salma Ayadi MD in radiology unit at Rothschild hospital,
Paris
Email :
[email protected]
References
1. Witte RJ,
Lane J,
Driscoll CL,
Lundy L,
Bernstein MA,
Kotsenas AL,
Kocharian A.
Pediatric and Adult Cochlear Implantation..
RadioGraphics 2003; 23:1185–1200
2. Clinical Guidelines for Adult Cochlear Implantation Neurosciences and Senses January 2013
3. Woolley A,
Oser AB,
Lusk RP,
Bahadori RS .Preoperative temporal bone computed tomography scan and its use in evaluating the pediatric cochlear implant candidate.
Laryngoscope.
1997 Aug;107(8):1100-6
4. Lee J ,
Nabol JB and Eddington DK.
Depth of Electrode Insertion and Postoperative Performance in Humans with Cochlear Implants: A...