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:6/25/2016)... ... June 25, 2016 , ... Dr. Calvin Johnson ... Recently, he has implemented orthobiologic procedures as a method for treating his patients. ... the first doctors to perform the treatment. Orthobiologics are substances that orthopaedic surgeons ...
(Date:6/24/2016)... Marne, Michigan (PRWEB) , ... June 24, 2016 , ... ... To deal with these feelings, many turn to unhealthy avenues, such as drug or ... Center of Marne, Michigan, has released tools for healthy coping following a traumatic event. ...
(Date:6/24/2016)... MIAMI, Fla. (PRWEB) , ... June 24, 2016 , ... ... Florida Trend magazine’s 2016 Legal Elite. The attorneys chosen by their peers for this ... of Florida. , Seven Greenberg Traurig Shareholders received special honors as members of this ...
(Date:6/24/2016)... ... ... People across the U.S. are sharpening their pencils and honing their writing skills ... patients and their families pay tribute to a genetic counselor by nominating him or ... Counselors (NSGC) Annual Education Conference (AEC) this September. , In April, Genome magazine ...
(Date:6/24/2016)... Frederick, Maryland (PRWEB) , ... June 24, 2016 ... ... Mid-Atlantic Angels is actively feeding the Frederick area economy by obtaining investment capital ... support over the past 2½ years that have already resulted in more than ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... 24, 2016 Research and Markets has ... Companion Diagnostic Tests" report to their offering. ... Diagnostics The World Market for Companion Diagnostics ... diagnostics. Market analysis in the report includes the following: ... Vitro Diagnostic Kits) by Region (N. America, EU, ROW), 2015-2020 ...
(Date:6/24/2016)... 2016  Arkis BioSciences, a leading innovator in ... durable cerebrospinal fluid treatments, today announced it has ... is led by Innova Memphis, followed by Angel ... investors.  Arkis, new financing will accelerate the commercialization ... release of its in-licensed Endexo® technology. ...
(Date:6/23/2016)... , June 23, 2016 ... "Pharmaceutical Excipients Market by Type (Organic Chemical (Sugar, ... Formulation (Oral, Topical, Coating, Parenteral) - Global Forecast to ... The global pharmaceutical excipients market ... at a CAGR of 6.1% in the forecast period ...
Breaking Medicine Technology: