Navigation Links
Prosthetic Ears Boost Hearing After Injury
Date:9/15/2008

Not only restores aesthetics, but also improves speech recognition

MONDAY, Sept. 15 (HealthDay News) -- Prosthetic ears can help improve hearing and speech recognition for people who've lost an outer ear due to injury or cancer surgery, a new U.S. study reports.

In many cases where the outer ear (pinna) has been lost, the external auditory canal is usually intact, and the remainder of the person's hearing system should function normally. "In these patients, the physician must strive not only to correct the aesthetic defect caused by the missing pinna, but also to correct the hearing loss caused by its absence," wrote Dr. William E. Walsh, of Northwestern's Feinberg School of Medicine, and colleagues.

The researchers analyzed eight different silicone rubber prosthetic ears. In the first part of the study, they attached a microphone at the entrance to a simulated ear canal on a life-sized plastic foam head. The microphone measured sound pressure levels both with and without the ear prostheses attached to the head as it was rotated 360 degrees.

On average, the prostheses improved sound pickup by 8.1 decibels (normal conversation is about 60 decibels) when the frequency of sound was 4.6 kilohertz, and by 9.7 decibels when the frequency was 11.5 kilohertz.

The second part of the study included 11 young adults with normal hearing who took part in a speech test involving simulation of hearing problems associated with the loss of an outer ear. In this test, the prosthetic ears improved speech recognition.

The findings were published in the September/October issue of the journal Archives of Facial Plastic Surgery.

"Auricular prostheses provide an acoustic gain at certain head positions and frequencies, and this acoustic gain is clinically relevant, because it benefits speech recognition in noise," the study authors wrote.

"In some individuals, auricular prostheses not only effectively restore aesthetics, but also may improve hearing. To verify the results of the present experiments, the main outcome measures described in this study will be used to obtain future measurements from individuals who wear auricular prostheses."

More information

The American Speech-Language-Hearing Association has more about hearing loss.



-- Robert Preidt



SOURCE: JAMA/Archives journals, news release, Sept. 15, 2008


'/>"/>
Copyright©2008 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. Amy Street, Certified Prosthetist and Orthotist, Joins BridgePoint Medical Partner, Charlotte Orthotic and Prosthetic Center (COPC)
2. Kaiser Permanente Team Builds Prosthetic Hands for Charity
3. Mayo Clinic researchers discover new diagnostic test for detecting infection in prosthetic joints
4. Palliative Care Programs Could Boost Hospitals Bottom Line
5. Once-Weekly Diabetes Drug Boosts Blood Sugar Control
6. Height May Boost Prostate Cancer Risk, Study Suggests
7. Java gives caffeine-naive a boost, too
8. Indonesias Pharmaceutical companies Get Boost in Competitive Advantage from Launch of Newport Horizon Premium and IDRAC Solutions by Thomson Reuters
9. HRT Drug Boosts Stroke Risk in Older Women
10. Lack of Vitamin D Boosts Death Risk
11. Chickenpox Protection: Get That Booster
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/26/2017)... ... February 26, 2017 , ... NuevaCare, a leading home care ... Millbrae, Belmont, and Palo Alto, is proud to announce an important upgrade to its ... look for home care close to home, and by having city-specific pages, NuevaCare is ...
(Date:2/26/2017)... , ... February 26, 2017 , ... ODH, Inc.™ ... Summit, February 27-28 at the Sheraton Pentagon City Hotel in Arlington, VA. ODH’s director ... to use behavioral health analytics to improve Medicaid population health management. , ODH will ...
(Date:2/24/2017)... ... 24, 2017 , ... HealthPostures, expert standing desk solution designer, ... built into the home office sit stand solution are bold colors, a new ... the benefits embedded in the TaskMate Go are available 24/7 through HealthPostures' online ...
(Date:2/24/2017)... ... ... An in-depth computational analysis of genetic variants implicated in both schizophrenia and ... may explain why susceptibility to one of the disorders could place individuals at lower ... the journal npj Schizophrenia. , “There is a wealth of genomic data on ...
(Date:2/24/2017)... ... ... With millions of Americans and people worldwide struggling with ... aware of our options and are empowered with strength and information throughout the ... newest edition of "Vision and Hearing" in USA Today, that will educate readers ...
Breaking Medicine News(10 mins):
(Date:2/24/2017)... Research and Markets has announced the addition of the "Dry ... offering. ... Dry eye Drugs Price Analysis and Strategies - 2016, provides drug pricing ... answers the following questions: What are the ... they positioned in the Global Dry eye market? What ...
(Date:2/24/2017)... , Feb. 24, 2017 Medical information ... to increase their self-service capabilities to manage inquiries ... (HCPs). New research from consulting leader ... have developed self-service website portals where HCPs can ... just one of many findings to emerge from ...
(Date:2/24/2017)... , Feb. 23, 2017 Report analyzes the ... provides separate comprehensive analytics for the US, Canada ... , Asia-Pacific , Latin ... forecasts are provided for the period 2015 through 2022. Also, ... data and analytics are derived from primary and secondary research. ...
Breaking Medicine Technology: