Researchers develop test to gauge concussion severity
Neurologists inwards Arizona direct maintain taken a promising pace toward identifying a examination that helps back upward the diagnosis of concussion.
Research past times the neurologists at the Mayo Clinic has shown that autonomic reflex testing, which measures involuntary changes inwards midpoint charge per unit of measurement as well as blood pressure, consistently seem to demonstrate meaning changes inwards those amongst concussion.
They presented the findings at the American Academy of Neurology annual coming together inwards San Diego this week.
Doctors currently rely primarily on self-reporting of symptoms to brand a diagnosis of concussion.
In addition, other than the absence of symptoms, in that place is no reliable examination to stimulate upward one's hear when an athlete’s encephalon has fully recovered from concussion.
Doctors know from brain-imaging inquiry studies that in that place is a lag betwixt when the patient reports that their symptoms direct maintain resolved as well as the fourth dimension when the encephalon has genuinely healed.
Therefore, a rapid, reliable, cost-effective tool is needed to position amount encephalon recovery from concussion.
“This has the potential to alter the agency nosotros approach concussion patients,” says David Dodick, a neurologist as well as manager of the Mayo Clinic Concussion Program.
“One of the challenges of treating somebody amongst a concussion is to reliably brand a diagnosis: to know when the encephalon is injured as well as to know when the encephalon is genuinely recovered.”
Co-author Brent Goodman, a Mayo neurologist as well as autonomic expert, said: “Autonomic nervous organisation dysfunction has long been recognized every bit a possible complication of people amongst severe traumatic encephalon injury but has rarely been associated amongst people amongst concussions or milder forms of encephalon injury.”
The autonomic nervous organisation acts every bit an involuntary command organisation for functions such every bit midpoint rate, blood pressure, digestion, respiratory charge per unit of measurement as well as perspiration.
In the study, Mayo Clinic doctors monitored 21 consecutive patients afterward concussion, as well as all experienced meaning abnormalities inwards midpoint charge per unit of measurement as well as blood trace per unit of measurement area during autonomic testing.
The physicians conclude that these abnormalities are tied to the concussion.
“Contrary to pop belief, the symptoms of ‘dizziness’ that patients experience only afterward a concussion may, inwards closed to cases, move symptoms of autonomic organisation harm rather than a vestibular or inner ear disturbance,” says Bert Vargas, a Mayo neurologist.
More inquiry is needed, but the Mayo squad is optimistic, Dodick says.
“This study shows a possible electrophysiological biomarker that indicates that a concussion has occurred – nosotros are hopeful that amongst to a greater extent than inquiry this volition move confirmed as well as that this may also move a biomarker for recovery,” he says.
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