Studies exploring potential predictors of post-traumatic stress disorder (PSTD) following major trauma have resulted in varied conclusions. While a number of risk factors such as injury severity, demographic factors and compensation-related factors have been identified, none is strong enough to reliably predict which patient will develop the disorder.

A new study of combat-exposed Vietnam War veterans shows that those with injuries to certain parts of the brain were less likely to develop post-traumatic stress disorder (PTSD). The findings, from the National Institutes of Health (NIH) and the National Naval Medical Center, suggest that drugs or pacemaker-like devices aimed at dampening activity in these brain regions might be effective treatments for PTSD.

A small study suggests that adults whose parents are Holocaust survivors with post-traumatic stress disorder (PTSD) appear to have lower average levels of the stress hormone cortisol than the adult offspring of parents without PTSD, according to a report in the September issue of Archives of General Psychiatry, one of the JAMA/Archives journals.

People who have been traumatized by exposure to war crimes have a tendency to choose violent means and reject nonviolent means to achieve peace, says a joint Tulane University/University of California-Berkeley study in the August 1 issue of Journal of the American Medical Association.