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Symptoms and Quality of Life After Traumatic Brain Injury in Military Personnel

by Dr. Trupti Shirole on January 6, 2016 at 8:02 PM
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 Symptoms and Quality of Life After Traumatic Brain Injury in Military Personnel

Traumatic brain injury is a major concern in military personnel, both deployed and non-deployed. Estimates suggest that more than 294,000 service members sustained TBI between 2000 and 2013. More than 80% of these injuries were mild TBI, also known as concussion.

Four distinct patterns of symptoms after mild traumatic brain injury (TBI) in military service members have been identified by researchers. They also validated a new tool for assessing the quality-of-life impact of TBI. The studies appear in the January-February 2016 issue of The Journal of Head Trauma Rehabilitation (JHTR), an annual special issue devoted to TBI in the military.

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In print and online, the special issue presents 13 original research studies on TBI in the military, including a special focus on how TBI affects quality of life (QOL).

Jason M. Bailie, of the Defense and Veterans Brain Injury Center (DVBIC) and colleagues analyzed patterns of neurobehavioral and psychiatric symptoms in more than 1,300 veterans who had sustained combat-related mild TBI within the past two years. The goal was to develop a classification, or 'taxonomy', of symptoms after mild TBI in military personnel.
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The analysis identified four 'clusters', or subtypes, of symptoms. The largest group of veterans - about 38% - had good recovery, with relatively low rates of behavioral and mental health symptoms.

About 22% of veterans had primarily psychiatric symptoms. This included mood symptoms associated with post traumatic stress disorder (PTSD), such as hyperarousal and dissociation or depression. But they were less likely to have cognitive (thinking) difficulties or headaches.

Another 22% had primarily cognitive symptoms and headaches, with few mood problems. The remaining 19% of veterans fell into a 'mixed' subtype, with a combination of mood problems, cognitive complaints, and headaches.

Some other characteristics also differed between groups, including the timing of TBI and the severity of other injuries. While emphasizing that their classification is preliminary, Dr. Bailie and coauthors conclude, "The clinical differences among these subtypes indicate a need for unique treatment resources and programs."

Rael T. Lange, of the DVBIC and colleagues report an evaluation of the 'TBI-QOL' - a new questionnaire for assessing health-related quality of life after TBI. The TBI-QOL evaluates 20 subscales in the areas of physical and emotional health, cognition, and social participation.

The researchers compared TBI-QOL scores for about 100 veterans with mild TBI versus smaller groups of injured or uninjured veterans without TBI. The results showed good reliability and validity, providing evidence that the responses were consistent and accurate. The TBI-QOL also performed well in distinguishing between veterans with and without TBI.

Veterans with TBI scored worse than the other groups on ten out of 14 subscales. The differences were largest in areas reflecting cognitive function, grief and loss, pain interfering with daily activities, and headache. Somewhat surprisingly, the differences were not as great for symptoms of anxiety and depression.

Source: Eurekalert
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