The National Intrepid Center of Excellence at Walter Reed National Military Medical Center is dedicated to treating the invisible wounds of traumatic brain injury.
Through its mission to provide cutting-edge and excellent clinical care diagnoses, research, and education around TBI and associated health conditions, the NICoE aims to bring hope, healing, discovery, and learning to patients and their families, medical providers, and the research community.
TBI is significant among U.S. service members and veterans and occurs when an external force causes damage to the brain and a disruption in its normal function. TBI occurs on a spectrum, from mild - or mTBI, also known as concussion, - to severe, with mTBI considered the most common TBI affecting military service members. Those who experienced an mTBI usually recover completely.
The Defense Medical Surveillance System reported that between 2000 and the third quarter of 2020, over 430,000 U.S. service members suffered TBIs, of which 82.4% were mild. However, unlike visible physical injuries, such as cuts, gunshots, broken limbs, or others, TBIs often can't be recognized with the naked eye, said Dr. Louis M. French, neuropsychologist and deputy director of the NICoE.
"For those people that are at the milder end of the TBI spectrum, and for some people with more severe TBI, often there are no external physical signs that you would notice about someone in casual conversation," said French. "You might not see that they're impaired when the brain has been affected."
When the brain doesn’t work in the way that it normally would or should, this can create a very frustrating situation for patients, French noted, saying, "they have these very significant concerns they're dealing with, and other people may not see that they really have been affected."
Additionally, post-traumatic stress symptoms and post-traumatic stress disorder often occur in parallel to TBI, and each case presents unique symptoms, noted French.
"If you've been injured in a combat situation, it increases your risk of having PTS symptoms," he said. "The things that wound you physically can also wound you mentally."
And since we're all different, "we come into these situations with different bodies, different experiences, different ages - there are all sorts of factors that go into how one is affected by a situation," he explained. Likewise, "there are a lot of factors that affect whether someone is injured and the outcome that they have after that."
Assessment Tools and Guidelines
Due to the number of TBIs U.S. service members have suffered over the last decade or more, the Military Health System has developed several tools to quickly diagnose and assess people with a potential TBI or concussion, explained French.
"There are guidelines that the military has put out both for in-theater and in-garrison regulations around the assessment and treatment of TBI, as well as about the return to activity and return to duty," he said. "These are standardized instruments that the military uses acutely to do these kinds of assessments to identify service members who may be affected either in peace time or in war time."
French explained how most TBI patients will be able to return to duty after a period of recovery. The therapy offered at the NICoE is designed to get each individual back to their maximum level of function, whatever that is.
"Most of those people go on to have quite uneventful recoveries - they may be symptomatic for a while, but they do well ultimately," he said.
Still, there's a small percentage of people who, for various reasons, may have persistent symptoms.