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War Vets With Headaches Could Have Brain Problems
Reduced sense of smell might also signal need for testing, expert says

By Tate Gunnerson -HealthDay News

MONDAY, Jan. 5 (HealthDay News) -- Headache frequency and severity caused by traumatic brain injury might signal cognitive deficits, suggests a new study of Iraq war veterans.

Traumatic brain injuries, also called concussions, are common among veterans who served in Iraq. And as deployment times have become longer, military personnel have more chances to be exposed to explosions that can cause injury.

"The most important finding was that the soldiers who continued to have problems with headaches and PTSD [post-traumatic stress disorder] were much more likely to have signs of residual cognition impairment or abnormalities," said study author Dr. Robert L. Ruff, professor of neurology at Case Western Reserve University and neurology service chief at the Louis Stokes Cleveland Veterans Affairs Medical Center. "By themselves, the deficits were not severe, but they compromised the veterans' ability to return to where they were."

The researchers studied 126 veterans who had lost consciousness from blasts and explosions an average of three times while in Iraq, none for more than 30 minutes. Neurological and neuropsychological testing revealed impairments in 80 of the veterans that the researchers attributed to concussions. Those veterans had been exposed to more explosions than the others, the study found.

Among veterans who had brain impairments, 93 percent reported having headaches, compared with 13 percent of those who showed no dysfunction on the neurological tests.

Their headaches also were more severe and persistent. Veterans with no brain impairments all described having tension-like headaches about four times a month, whereas 60 percent of those with brain impairments resulting from their concussions described migraine-like headaches that occurred an average of 12 times a month.

In addition to more frequent and severe headaches, many of the veterans also experienced other PTSD symptoms, including sleep disorders and problems with their sense of smell, the study found.

"The olfactory nerves are very small, so when there's movement, they get sheared off," said Keith Young, associate professor and vice chairman for research at Texas A&M Health Science Center College of Medicine in College Station, Texas, who also works with the VA Center of Excellence for Research on Returning War Veterans.

"People who have multiple exposures to blasts that cause loss of consciousness need to be carefully monitored for potential problems in the future," Young said.

And he believes the study, published in the latest issue of the Journal of Rehabilitation Research & Development, could lead to better methods to identify veterans who need more intensive treatment.

"The study points to the possibility of using olfactory testing to look for people who might benefit from additional medical testing," Young said. "The good news about these olfactory tests is that they don't require computers, so in a field hospital, you could use scratch and sniff tests to identify people who need additional testing."

The findings may lead not only to new diagnostic techniques but to different approaches for treating people with concussions, Ruff said.
"It suggests that the treatment for these people needs to be integrated," he said. "We need to treat not just head trauma or the PTSD but to treat them together."

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