Navigation Links
Mayo Clinic researchers develop test to gauge severity of concussions
Date:3/19/2013

SAN DIEGO Neurologists at Mayo Clinic in Arizona have taken a promising step toward identifying a test that helps support the diagnosis of concussion. Their research has shown that autonomic reflex testing, which measures involuntary changes in heart rate and blood pressure, consistently appear to demonstrate significant changes in those with concussion. They presented the findings at the American Academy of Neurology annual meeting in San Diego this week.

Right now doctors rely primarily on self-reporting of symptoms to make a diagnosis of concussion. In addition, other than the absence of symptoms, there is no reliable test to determine when an athlete's brain has fully recovered from concussion. Doctors know from brain imaging research studies, that there is a lag between when the patient reports that their symptoms have resolved and the time when the brain has actually healed. Therefore, a rapid, reliable, cost-effective tool is needed to identify full brain recovery from concussion.

"This has the potential to change the way we approach concussion patients," says David Dodick, M.D., a neurologist and director of the Mayo Clinic Concussion Program. "One of the challenges of treating someone with a concussion is to reliably make a diagnosis: to know when the brain is injured and to know when the brain is actually recovered."

"Autonomic nervous system dysfunction has long been recognized as a possible complication of people with severe traumatic brain injury but has rarely been associated with people with concussions or milder forms of brain injury," adds co-author Brent Goodman, M.D., a Mayo neurologist and autonomic expert. The autonomic nervous system acts as an involuntary control system for functions such as heart rate, blood pressure, digestion, respiratory rate and perspiration.

In the study, Mayo Clinic doctors monitored 21 consecutive patients after concussion, and all experienced significant abnormalities in heart rate and blood pressure during autonomic testing. The physicians conclude that these abnormalities are tied to the concussion.

"Contrary to popular belief, the symptoms of 'dizziness' that patients feel just after a concussion may, in some cases, be symptoms of autonomic system impairment rather than a vestibular or inner ear disturbance," says Bert Vargas, M.D., a Mayo neurologist.

More research is needed, but the Mayo team is optimistic, Dr. Dodick says.

"This study shows a possible electrophysiological biomarker that indicates that a concussion has occurred -- we are hopeful that with more research this will be confirmed and that this may also be a biomarker for recovery," he says.


'/>"/>

Contact: Nick Hanson
newsbureau@mayo.edu
507-284-5005
Mayo Clinic
Source:Eurekalert

Related medicine news :

1. Lower GI problems plague many with rheumatoid arthritis, Mayo Clinic study finds
2. First targeted nanomedicine to enter human clinical studies
3. Clinical insight improves treatment with new lung cancer drug
4. Clinical news alert from the American Academy of Orthopaedic Surgeons
5. Mayo Clinic launches whole genome breast cancer study
6. Mayo Clinic offers newly approved treatment for acid reflux disease
7. NYU Langone experts present research, clinical advances at neurosurgeons meeting
8. Mayo Clinic breast cancer study finds new type of mutation
9. Kroenke honored for outstanding contributions in clinical research training
10. Awards celebrate clinical research that can improve health and alleviate suffering
11. Association for Psychological Science, SAGE launch Clinical Psychological Science
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/24/2017)... ... February 24, 2017 , ... Yisrayl Hawkins, Pastor and Overseer at The House ... present generation. Yisrayl makes an astounding statement when he says that the entire ... the Bible details the current times so plainly that anyone should be able to ...
(Date:2/24/2017)... Lawn, NJ (PRWEB) , ... February 24, 2017 ... ... with robust marketing services, which specializes in thought leadership , media relations, ... marketing campaigns and services that will be powered through Act-On, an intuitive marketing ...
(Date:2/23/2017)... ... February 23, 2017 , ... On ... issued a letter to withdraw previous guidance issued by the Obama ... The guidance issued in May 2016 by the Obama Administration came in response ...
(Date:2/23/2017)... (PRWEB) , ... February 23, 2017 , ... The American ... for ACPA’s 74th Annual Meeting. KLS is a longtime supporter of the event. ... an exhibitor and Platinum Sponsor," said Dr. Bob Havlik, 2017 ACPA President. "KLS Martin ...
(Date:2/23/2017)... ... February 23, 2017 , ... ... content provider for the National Institute for Health and Care Excellence ... organizations in the National Health Service (NHS) to search, order and purchase medical ...
Breaking Medicine News(10 mins):
(Date:2/23/2017)... Feb. 23, 2017 Visiomed, the French ... since 1997, is changing the landscape of healthcare ... patients with pro-active, custom-made solutions. Recognizing the rising ... and affordable healthcare without walls, Visiomed has launched ... developed with healthcare professionals that is empowering the ...
(Date:2/23/2017)... , Feb. 23, 2017  Cogentix Medical, Inc. ... and markets innovative proprietary products for the urology market, ... fiscal year ended December 31, 2016 before the market ... The Company will host a conference call and webcast ... Thursday, March 9, 2017 at 11:00 a.m. Eastern Time ...
(Date:2/23/2017)... , 23. Februar 2017 Im Rahmen ... nationale Wirtschaftszone in der südwestlichen chinesischen Provinz Guizhou, 2017 mit ... einer Innovationsplattform aktiv an der Entwicklung einer eingebetteten Hightech-Schlüsselindustrie. ... Continue Reading ... ...
Breaking Medicine Technology: