-- Robert Preidt
MONDAY, Oct. 14 (HealthDay News) -- Soldiers with certain gene
variations seem more likely than others to have chronic pain after
limb amputation, a small study says.
Researchers analyzed blood samples from 49 U.S. soldiers who had
persistent pain after amputation and identified hundreds of
previously unknown gene variations that could play a role in the
soldiers' chronic pain.
The study is scheduled for presentation Monday at the annual
meeting of the American Society of Anesthesiologists in San
"Traumatic amputations of limbs profoundly change the lives of affected military service members," study author Dr. Andrew Shaw, an associate professor of anesthesiology and critical care medicine at Duke University Medical Center, said in a society news release.
"Persistent phantom pain after amputation is a serious problem with no effective treatments. By identifying these 'pain genes,' we may be able to discover the reasons why pain occurs and predict which patients are more likely to have it. In the future, we hope to discover the biology of persistent pain and develop ways to combat it."
As many as 80 percent of all amputees experience pain in the
remaining part of their limb or a "phantom pain" in the part of the
limb that is missing, according to the
Journal of the International Association for the Study of
Between 2000 and 2011, more than 5,600 U.S. military personnel
underwent 6,144 amputations, according to the Armed Forces Health
Surveillance Center. More than one-third of them had major
amputations, defined as the loss of a hand, foot or more.
Findings presented at medical meetings are typically considered
preliminary until published in a peer-reviewed medical journal.
The Amputee Coalition of America has more about
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