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flotsam

(3,268 posts)
1. I wonder if the deaths are related to this:
Thu Feb 20, 2020, 09:39 PM
Feb 2020

In military settings, most traumatic brain injuries (TBIs) are mild TBIs (mTBIs). For U.S. forces deployed to Afghanistan and Iraq in Operation Enduring Freedom (OEF), Operation Iraqi Freedom (OIF), and Operation New Dawn (OND), blast exposure is the leading cause of mTBI, although service members are also susceptible to concussions [1]. Estimates of the prevalence of mTBI among returning service members range from 15.2% to 22.8%, affecting as many as 320,000 troops

Our experience with repetitive concussive injury includes a 28-year-old male U.S. Marine veteran with two combat deployments. Similar to many other military personnel, his history was notable for multiple concussions that occurred as a civilian and in combat. His first concussion occurred at age 12 in a bicycle accident with temporary loss-of-consciousness (LOC) and posttraumatic amnesia (PTA). At age 17, he experienced a second concussion without LOC during football practice. At age 25, during his second military deployment, he experienced a third concussion with temporary alteration in mental status but no LOC, after which he was diagnosed with PTSD. Four months later at age 26, he sustained a fourth concussion with temporary LOC and PTA resulting from a motor vehicle-bicycle collision. He subsequently developed persistent anxiety, difficulty concentrating, word-finding difficulties, learning and memory impairment, reduced psychomotor speed, and exacerbation of PTSD symptoms. He died from a self-inflicted gunshot wound 2 years after his last concussion.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4255273/

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