Keywords: Sport concussion, brain injury (PubMed Search)
Athletes with a history of concussion had an average cerebral blood flow of 40 mL per minute, per 100 grams of brain tissue.
Athletes without a history of concussion had an average cerebral blood flow of 53 mL per minute, per 100g of brain tissue.
In the weeks following concussion, those athletes with a prior history of concussion had microstructural changes in the corpus callosum.
Effects were seen in the absence of differences in SCAT domains or time to return to sport.
Acute and Chronic Effects of Multiple Concussions on Midline Brain Structures. Churchill et al. Neurology Aug 2021.