AudiologyOnline Phone: 800-753-2160


MED-EL SYNCHRONY - February 2022

Who is a Candidate for an Electric-Acoustic Stimulation (EAS) Cochlear Implant?

Allison Racey, AuD

June 5, 2017

Share:

Question

Who is a candidate for the MED-EL SYNCHRONY Electric-Acoustic Stimulation (EAS) Cochlear Implant System?

Answer

With recent FDA approval of the SYNCHRONY Electric-Acoustic Stimulation (EAS) Cochlear Implant System, individuals with high-frequency hearing loss have a new option for an implantable hearing device with positive outcomes demonstrated through a clinical trial with 73 subjects. MED-EL’s EAS System is approved for adult candidates with residual low frequency hearing and severe to profound high-frequency sensorineural hearing loss. Often called “ski-slope” hearing loss, individuals with this configuration of loss are often not able to obtain sufficient benefit from appropriately fit hearing aids. Acoustic hearing aids are frequently unable to provide adequate high-frequency amplification for such severe to profound hearing loss. This results in patients often reporting that they are able to hear speech and other sounds around them but not able to understand what is being said. Understanding speech, which comes from high-frequency sounds (speech sounds such as vowels, as opposed to consonants), can be even more difficult in significant background noise. EAS, which combines a cochlear implant to stimulate high-frequencies with an acoustic component to provide low-frequency amplification, can improve speech understanding both in quiet and in background noise. Participants in the EAS clinical trial demonstrated significant improvements in speech understanding in both conditions, as well as increases in satisfaction and perceived benefit from the device, compared to traditional hearing aids.

Candidacy for the SYNCHRONY EAS System is determined not only by normal hearing to moderate hearing loss in the low frequencies and severe to profound hearing loss in the high frequencies on the audiogram, but also by speech recognition scores. It is important to verify that patients with hearing loss meeting EAS criteria are also not performing satisfactorily with appropriately fit hearing aids on measures of speech understanding in quiet. Candidates for EAS should score 60% or less on CNC words in quiet in each ear in the aided condition.

unaided air conduction audiometric thresholds for candidacy for the SYNCHRONY EAS Cochlear Implant System

Red area represents unaided air conduction audiometric thresholds for candidacy for the SYNCHRONY EAS Cochlear Implant System.

Based on the results from the clinical trial, a patient who meets both audiometric and speech criteria  noted above is likely to experience improvements in speech understanding in quiet and in noise, as well as an increase in self-perceived benefit from the device. Individuals with this configuration of hearing loss have often relied for many years on what low-frequency hearing they do have and may be reluctant to put this hearing at risk. The risk-benefit profile of all available options should be considered when counseling patients with ski-slope hearing loss. The risk of loss of residual hearing can be minimized through surgical technique and electrode design, and outcomes from the clinical trial or other experience with MED-EL’s EAS System should be discussed with potential candidates to determine if EAS implantation is a viable option.

For more information, visit www.medel.com/us or the MED-EL Expo on AudiologyOnline.


allison racey

Allison Racey, AuD

Manager of Regulated Research

Allison Racey, AuD is the Manager of Regulated Research at MED-EL Corporation. She manages FDA-regulated studies, including multi-center clinical trials, in which MED-EL is involved. As part of managing these studies, she provides training and support to investigators involved in these projects. Additionally, she interacts with the FDA as needed on regulated-research issues. Allison received her Doctorate in Audiology from the University of North Carolina at Chapel Hill in 2009. She spent time working in private practice prior to joining MED-EL Corporation in 2011. Bringing hearing implant technology to those who have exhausted other, non-surgical options is a top priority for Allison.


Related Courses

MED-EL Electric-Acoustic Stimulation Clinical Trial Outcomes
Presented by Allison Racey, AuD, Meg Dillon, AuD
Recorded Webinar
MED-EL

Presenters

Allison Racey, AuDMeg Dillon, AuD
Course: #28485Level: Intermediate1 Hour
  'The way the research was explained and compared to similar devices'   Read Reviews
In this course presenters will discuss the study design and important outcomes from the US Clinical Trial for Electric-Acoustic Stimulation. Data collected from study subjects will be presented within the context of the clinical trial as well as from additional testing completed at the lead study site.

View this Course for FREE.
Need CEUs? Become a AudiologyOnline member to get unlimited CEUs.

Only $99/yr

Learn More

Introducing MED-EL Cochlear Implants for Persons with Single-Sided Deafness (SSD) and Asymmetric Hearing Loss (AHL)
Presented by Allison Racey, AuD, Meg Dillon, AuD
Recorded Webinar
MED-EL

Presenters

Allison Racey, AuDMeg Dillon, AuD
Course: #33949Level: Introductory1 Hour
  '2 speakers bring diversity of information and perspective'   Read Reviews
The FDA has recently approved Single-Sided deafness (SSD) and Asymmetric Hearing Loss (AHL) as a new indication for MED-EL cochlear implants. This course will review data collected by one of the study sites used for this approval as well as Quality of Life data collected in these populations.

View this Course for FREE.
Need CEUs? Become a AudiologyOnline member to get unlimited CEUs.

Only $99/yr

Learn More

Cochlear Implants and Single Sided Deafness: An Easy Approach to Audiological Assessment
Presented by Darla Franz, Allison Racey, AuD, Camille Dunn, PhD, Lisa Park, AuD, Kari Smilsky, MClSc
Recorded Webinar
MED-EL

Presenters

Darla FranzAllison Racey, AuDCamille Dunn, PhDLisa Park, AuDKari Smilsky, MClSc
Course: #37345Level: Introductory1 Hour
  'A lot of great information!'   Read Reviews
Assessing outcomes in CI recipients with Single Sided Deafness is time consuming and challenging for busy clinics without a specialized test environment and equipment. This webinar will introduce a new testing resource from MED-EL that will help audiologists measure speech recognition through the implant and assess binaural listening skills, that can be completed quickly in a typical sound suite.

View this Course for FREE.
Need CEUs? Become a AudiologyOnline member to get unlimited CEUs.

Only $99/yr

Learn More

Anatomy Based CI Fitting: Matching the Natural Ear Like Never Before
Presented by Barbara Foster, AuD, CCC-A, Josh Stohl, PhD, Darla Franz, Katelyn Glassman, AuD
Recorded Webinar
MED-EL

Presenters

Barbara Foster, AuD, CCC-AJosh Stohl, PhDDarla FranzKatelyn Glassman, AuD
Course: #38175Level: Intermediate1 Hour
MED-EL offers various electrode lengths for the best individual fit for each CI recipient. We’ve taken the next step forward by using imaging to visualize where the electrode sits after implantation within a patient’s cochlea. This information is then used to individualize the recipient’s map based on the real location of each electrode contact, before proceeding with fitting as usual. For the first time, audiologists are now able to best match the frequency settings to the natural pitch information unique to each patient’s ear. This webinar reviews Anatomy-Based Fitting, which is easy to implement with a just a few clicks in the MAESTRO fitting software.

View this Course for FREE.
Need CEUs? Become a AudiologyOnline member to get unlimited CEUs.

Only $99/yr

Learn More

Mi Casa, Tu Casa (En Casa!)
Presented by Laura Corcoran
Recorded Webinar
MED-EL

Presenter

Laura Corcoran
Course: #36129Level: Introductory1 Hour
  'Excellent speaker and information'   Read Reviews
Latinos are the fastest growing minority in the U.S. and it’s estimated that 1 in 7 Latinos have a hearing loss. This webinar will introduce MED-EL’s Bilingual Program, a unique cultural approach to serving and supporting this community.

View this Course for FREE.
Need CEUs? Become a AudiologyOnline member to get unlimited CEUs.

Only $99/yr

Learn More

Our site uses cookies to improve your experience. By using our site, you agree to our Privacy Policy.