Bloomberg News reports that, according to a study published in the journal Neurology, “four months after a mild concussion, brain scans show abnormalities even though symptoms from the injury have mostly disappeared.” These findings raise “concerns that patients are at a greater risk of reinjury than” was once thought.
HealthDay reports that after having compared 50 patients with concussion to “the same number of healthy people, researchers found that the brains of those suffering concussions showed abnormalities four months later.”
The study, which was funded by the National Institutes of Health, found that even though “concussion symptoms were reduced by up to 27 percent four months after injury, brain scans of those with concussions showed abnormalities in the frontal cortex area of both sides of the brain.”
The Institute of Medicine said in January it had begun an investigation into concussions related to sports. It will review risk factors, screening and diagnosis, as well as long-term consequences and treatment. The Washington-based nonprofit organization provides advice to policy makers and the public.