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Traumatic brain injury complications common among US combat soldiers Traumatic brain injury complications common among US combat soldiers

Traumatic brain injury complications common among US combat soldiers

Brain • • Trauma & InjuriesFeb 07, 2013

U.S. soldiers in combat often suffer constricted blood vessels and increased pressure in the brain — significant complications of traumatic brain injuries, according to research presented at the American Stroke Association’s International Stroke Conference 2013.

“Research shows that traumatic brain injury is a hallmark of recent military conflicts, affecting nearly a third of all wounded soldiers,” said Alexander Razumovsky, Ph.D., lead researcher and director of Sentient NeuroCare Services in Hunt Valley, Md.

Constricted blood vessels in the brain are cerebral vasospasm.

Abnormally high pressure in the brain is intracranial hypertension. 

A transcranial Doppler ultrasound is a non-invasive, inexpensive and portable way to assess these complications.

To better understand how common these complications are among soldiers, Razumovsky and colleagues analyzed data of 122 traumatic brain injury patients who had transcranial Doppler testing. Among them, 88 had penetrating head injuries and 34 had closed head injuries.

Researchers found:

In anterior circulation vessels: 66 percent of patients in the penetrating Head injury and 13 percent in the closed Head injury groups had transcranial Doppler signs of posttraumatic vasospasm.
In posterior circulation vessels: 64 percent of patients in the penetrating Head injury and 14 percent in the closed Head injury groups had transcranial Doppler signs of posttraumatic vasospasm.
More than 40 percent of all the traumatic brain injury patients had high intracranial pressure.

“What we’ve found is applicable and important to civilian traumatic brain injury patients, given that a significant number of them will have posttraumatic bleeding that will lead to vasospasm and intracranial hypertension,” Razumovsky said. “Tracking and managing these patients is important, and therefore daily transcranial Doppler studies are recommended for recognition and subsequent management of these secondary complications.”

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Co-authors are Teodore Tigno, M.D.; Randy Bell, M.D.; Meryl V. Severson, M.D.; Sven M. Hochheimer, M.D., Ph.D.; Scott A. Marshall, M.D.; Stephen M. Oppenheimer, M.D.; Robert Ecker, M.D.; Rocco A. Armonda, M.D; Efim Kouperberg, M.D., Ph.D.; and James Aden, Ph.D. Author disclosures are on the abstract.

The U.S. Army Medical Research and Material Command’s Telemedicine and Advanced Technology Research Center funded the study.

Follow news from the ASA International Stroke Conference 2013 via Twitter @HeartNews; #ISC13.

For more information, visit the American Stroke Association.

Statements and conclusions of study authors that are presented at American Heart Association scientific meetings are solely those of the study authors and do not necessarily reflect association policy or position.

The association makes no representation or warranty as to their accuracy or reliability. The association receives funding primarily from individuals; foundations and corporations (including pharmaceutical, device manufacturers and other companies) also make donations and fund specific association programs and events. The association has strict policies to prevent these relationships from influencing the science content. Revenues from pharmaceutical and device corporations are available at http://www.heart.org/corporatefunding.

Note: Actual presentation is 1:06 p.m. HT/6:06 p.m. ET, Wednesday, Feb. 6, 2013.

All downloadable video/audio interviews, B-roll, animation and images related to this news release are on the right column of this link. Video clips with researchers/authors of studies will be added to the release links after embargo.

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Karen Astle
karen.astle@heart.org
214-706-1173
American Heart Association

Provided by ArmMed Media

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