Featured Research

from universities, journals, and other organizations

Among vaccinated children who lose hearing from meningitis, prompt evaluation and early intervention important

Date:
October 18, 2010
Source:
JAMA and Archives Journals
Summary:
Despite widespread use of pneumococcal vaccination, some children still develop deafness following pneumococcal meningitis, according to a new study. Based on a small case series, early evaluation and simultaneous cochlear implantation in both ears may be a successful treatment strategy.

Despite widespread use of pneumococcal vaccination, some children still develop deafness following pneumococcal meningitis, according to a report in the October issue of Archives of Otolaryngology-Head & Neck Surgery, one of the JAMA/Archives journals. Based on a small case series, early evaluation and simultaneous cochlear implantation in both ears may be a successful treatment strategy.

Since the 7-valent pneumococcal conjugate vaccine (PCV7) became widely used in the United States in 2001, cases of meningitis and other related diseases have dramatically declined, according to background information in the article. "However, pneumococcal meningitis continues to occur, even in healthy children who receive the recommended PCV7 vaccination series in early childhood," the authors write. "For this reason, it is important for cochlear implant programs to remain prepared to proceed with expeditious implantation in children recently deafened by meningitis."

Urgent evaluation is essential in these children, because their cochlea tend to ossify or harden into bone, making implantation difficult. Nancy M. Young, M.D., and Tina Q. Tan, M.D., both of Children's Memorial Hospital and Feinberg School of Medicine, Northwestern University, Chicago, review the cases of five children ranging in age from 15 months to 10 years. Despite vaccination, these children experienced sudden hearing loss in both ears between 2005 and 2007 following illness with pneumococcal meningitis.

All the children underwent magnetic resonance imaging before surgery and four underwent auditory steady state response testing, which evaluates hearing loss in children too young for other tests. All successfully underwent cochlear implantation to restore hearing in both ears. The average time between meningitis diagnosis and implantation was 36.8 days.

"A number of studies have discussed auditory steady state response testing as an important tool in evaluating pediatric cochlear implant candidates. Our cochlear implant center has found this information to be helpful in counseling families regarding cochlear implant candidacy and in assisting the audiologist with more rapidly achieving optimal amplification, thereby shortening the hearing aid trial," the authors write.

Children and infants in the authors' clinic usually undergo a two- to three-month hearing aid trial, but in three of the post-meningitis cases, this protocol was not followed. "A more aggressive approach was used to optimize the likelihood of full electrode insertion in both ears in a population known to be at risk for progressive ossification," they write.

In addition, the use of MRI can provide helpful information about changes in the cochlea before the onset of bone formation, they conclude. "In light of the unpredictable nature of post-meningitic ossification, we recommend that cochlear implant surgeons consider bilateral simultaneous implantation to increase the likelihood of successful electrode array insertions, thereby preserving the potential for these children to achieve useful binaural hearing."


Story Source:

The above story is based on materials provided by JAMA and Archives Journals. Note: Materials may be edited for content and length.


Journal Reference:

  1. Nancy M. Young; Tina Q. Tan. Current Techniques in Management of Postmeningitic Deafness in Children. Arch Otolaryngol Head Neck Surg, 2010; 136 (10): 993-998 DOI: 10.1001/archoto.2010.168

Cite This Page:

JAMA and Archives Journals. "Among vaccinated children who lose hearing from meningitis, prompt evaluation and early intervention important." ScienceDaily. ScienceDaily, 18 October 2010. <www.sciencedaily.com/releases/2010/10/101018162936.htm>.
JAMA and Archives Journals. (2010, October 18). Among vaccinated children who lose hearing from meningitis, prompt evaluation and early intervention important. ScienceDaily. Retrieved April 16, 2014 from www.sciencedaily.com/releases/2010/10/101018162936.htm
JAMA and Archives Journals. "Among vaccinated children who lose hearing from meningitis, prompt evaluation and early intervention important." ScienceDaily. www.sciencedaily.com/releases/2010/10/101018162936.htm (accessed April 16, 2014).

Share This



More Health & Medicine News

Wednesday, April 16, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Ebola Outbreak Now Linked To 121 Deaths

Ebola Outbreak Now Linked To 121 Deaths

Newsy (Apr. 15, 2014) The ebola virus outbreak in West Africa is now linked to 121 deaths. Health officials fear the virus will continue to spread in urban areas. Video provided by Newsy
Powered by NewsLook.com
Cognitive Function: Is It All Downhill From Age 24?

Cognitive Function: Is It All Downhill From Age 24?

Newsy (Apr. 15, 2014) A new study out of Canada says cognitive motor performance begins deteriorating around age 24. Video provided by Newsy
Powered by NewsLook.com
How Mt. Everest Helped Scientists Research Diabetes

How Mt. Everest Helped Scientists Research Diabetes

Newsy (Apr. 15, 2014) British researchers were able to use Mount Everest's low altitudes to study insulin resistance. They hope to find ways to treat diabetes. Video provided by Newsy
Powered by NewsLook.com
Carpenter's Injury Leads To Hundreds Of 3-D-Printed Hands

Carpenter's Injury Leads To Hundreds Of 3-D-Printed Hands

Newsy (Apr. 14, 2014) Richard van As lost all fingers on his right hand in a woodworking accident. Now, he's used the incident to create a prosthetic to help hundreds. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins