Navigation Links
Brain Injury Doesn't Raise Dementia Risk for Most: Study
Date:1/4/2013

By Steven Reinberg
HealthDay Reporter

THURSDAY, Jan. 3 (HealthDay News) -- Having a traumatic brain injury at some time in your life doesn't raise the risk of dementia in old age, but it does increase the odds of re-injury, a new study finds.

"There is a lot of fear among people who have sustained a brain injury that they are going to have these horrible outcomes when they get older," said senior author Kristen Dams-O'Connor, assistant professor of rehabilitation medicine at the Icahn School of Medicine at Mount Sinai Medical Center in New York City.

"It's not true," she said. "But we did find a risk for re-injury."

The 16-year study of more than 4,000 older adults also found that a recent traumatic brain injury with unconsciousness raised the odds of death from any cause in subsequent years.

Those at greatest risk for re-injury were people who had their brain injury after age 55, Dams-O'Connor said. "This suggests that there are some age-related biological vulnerabilities that come into play in terms of re-injury risk," she said.

Dams-O'Connor said doctors need to look out for health issues among older patients who have had a traumatic brain injury. These patients should try to avoid another head injury by watching their balance and taking care of their overall health, she said.

To investigate the consequences of a traumatic brain injury in older adults, the researchers collected data on participants in the Adult Changes in Thought study, conducted in the Seattle area between 1994 and 2010. The participants' average age was 75.

At the start of the study, which was published recently in the Journal of Neurology, Neurosurgery & Psychiatry, none of the participants suffered from dementia. Over 16 years of follow-up, the researchers found that those who had suffered a traumatic brain injury with loss of consciousness at any time in their lives did not increase their risk for developing Alzheimer's or other forms of dementia.

The risk of another traumatic brain injury, however, more than doubled if the first injury occurred before age 25 and almost quadrupled if the injury happened after age 55. Similarly, a recent traumatic brain injury more than doubled the odds of death from any cause, the study found.

Dams-O'Connor's group plans to look at risk factors to try to understand why some people have poor long-term prognosis after a brain injury.

One expert said genetics may play a role. "My guess is that the risk for post-traumatic-brain-injury Alzheimer's disease has a genetic component with some genes increasing risk and others offering protection," said Dr. Sam Gandy, associate director of the Mount Sinai Alzheimer's Disease Research Center in New York City.

These findings should not be confused with those regarding athletes who suffer brain injuries, Gandy said.

"The dramatic examples of former [National Football League] players, hockey players and wrestlers who have an unusual illness, marked by depression, agitation and psychosis are quite different from Alzheimer's disease patients who tend to be apathetic," he said.

"Much remains to be discovered about the role of lifelong traumatic brain injury history, including severity and nature of torque and other physical factors, and late-life mental decline," Gandy said.

Another expert, Dr. Danny Liang, a neurosurgeon at North Shore-LIJ Cushing Neuroscience Institute in Manhasset, N.Y., thinks these findings are too narrow to say much about the risk of dementia as a result of traumatic brain injury.

"The study is restricted to a limited population so it's hard to extrapolate these findings to other populations," he said. "It is also possible that there were people who had traumatic brain injury who did develop dementia before age 65, so they were not included in the study," Liang said.

There also was no data on injury severity or duration of unconsciousness, he said. Brain injuries differ, and knowing the severity is important to determine the ultimate outcome, he said.

More information

For more information on traumatic brain injury, visit the U.S. Centers for Disease Control and Prevention.

SOURCES: Kristen Dams-O'Connor, Ph.D., assistant professor, rehabilitation medicine, Icahn School of Medicine, Mount Sinai Medical Center, New York City; Sam Gandy, M.D., Ph.D., associate director, Mount Sinai Alzheimer's Disease Research Center, New York City; Danny Liang, M.D., neurosurgeon, North Shore-LIJ Cushing Neuroscience Institute, Manhasset, N.Y.; Nov. 21, 2012, Journal of Neurology, Neurosurgery & Psychiatry


'/>"/>
Copyright©2012 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Study Suggests Vaccine May Help Kids With Brain Cancer
2. Epilepsy Leads to More Brain Abnormalities Over Time
3. UCLA Brain Injury Research Center gets NCAA funding for research on sports concussions
4. Why is traumatic brain injury increasing among the elderly?
5. Brain Falters Near End of Life, but Games, Puzzles Might Slow Decline
6. Dental X-Rays May Be Linked to Benign Brain Tumors
7. Nonsurgical Method to Measure Brain Pressure Shows Promise
8. Researchers Map Brain Regions Linked to Intelligence
9. Football-related catastrophic brain injuries on the rise
10. Brain Tumor Vaccine Shows Promise in Early Trial
11. Brain Surgery Might Ease Tough-to-Treat OCD
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Brain Injury Doesn't Raise Dementia Risk for Most: Study
(Date:6/25/2017)... ... June 25, 2017 , ... CareSet Labs released the Root NPI Graph today ... a new, greatly improved version of the Doctor Referral teaming dataset commonly available from ... and subsequently called the the “Doctor Referral Dataset” as released by Medicare and “DocGraph” ...
(Date:6/24/2017)... (PRWEB) , ... June 24, 2017 , ... ... in Erie, PA at the Sheraton Erie Bayfront and Erie Convention Center on ... based medicine experience, exhibits, a student quiz bowl, award and scholarship presentations, and ...
(Date:6/23/2017)... ... June 23, 2017 , ... The Rhode Island Quality Institute ... Alerts and Dashboards, an innovative new service enabling healthcare providers to proactively coordinate ... Alerts and Dashboards provide near real-time data about patients admitted to and/or discharged ...
(Date:6/23/2017)... ... ... Studies show evidence that carotenoids and antioxidants derived either from the diet or ... But how often do ophthalmologists and optometrists in Sweden recommend the use of nutritional ... early symptoms of AMD? A study published recently in Dove Medical Press ...
(Date:6/23/2017)... ... June 23, 2017 , ... Everybody has their own personal ... prefer to read it, and some people don't like it at all. FindaTopDoc took ... they found: , Erotic literature can give readers a taste of their deepest, darkest ...
Breaking Medicine News(10 mins):
(Date:6/13/2017)... Zimmer Biomet Holdings, Inc. (NYSE and SIX: ZBH), ... U.S. Food and Drug Administration (FDA) has notified the Company ... its Zhejiang, China manufacturing facility has ... successful clearance of the Warning Letter related to our ... measure of the progress we have made in our ongoing ...
(Date:6/9/2017)... and INDIANAPOLIS , June 9, ... living with diabetes. In a further effort to help ... affected by this condition, the International Diabetes Federation (IDF) ... ) have come together for the second phase of ... Systems programme (BRIDGES 2), reaffirming their commitment to helping ...
(Date:6/7/2017)... -- Novavax, Inc., (Nasdaq: NVAX ) today announced that ... its RSV F protein recombinant nanoparticle vaccine candidate (RSV F ... in the journal Vaccine (the data ... conferences). The Company previously announced top line results ... RSV F Vaccine with the goal of protecting infants from ...
Breaking Medicine Technology: