Future directions in PTSD research and care

This article originally appeared in the June 2008 issue of VA Research Currents

In a recent survey by the RAND Corporation of nearly 2,000 veterans of operations Enduring Freedom and Iraqi Freedom, half the respondents reported they had a friend who was killed or seriously wounded. Nearly half—45 percent—said they saw dead or seriously injured non-combatants. Not surprisingly, the rate of respondents who met the diagnostic criteria for posttraumatic stress disorder (PTSD) or depression was relatively high, at 18.5 percent. Based on these data, RAND estimates that some 300,000 veterans who have returned from Iraq and Afghanistan are suffering from PTSD or major depression.

soldiers in combat

The hidden scars of war—According to VA’s National Center for PTSD, "...the frequency and intensity of exposure to combat experiences is strongly associated with the risk of chronic PTSD."

For an overview of key issues and emerging trends in PTSD research and care, Research Currents spoke with Terence M.Keane, PhD, associate chief of staff for research at the VA Boston Healthcare System and director of the behavioral science division of VA's National Center for PTSD, headquartered in White River Junction, Vt. He is also a professor of psychology and professor and vice chairman of the division of psychiatry at Boston University School of Medicine. He is recognized internationally as a leading expert on trauma and PTSD and has authored numerous books, journal articles and clinical guidelines on PTSD. Keane served as guest editor for the current issue of VA's Journal of Rehabilitation Research and Development (JRRD), which focuses on PTSD.

Research Currents: VA Secretary Peake has spoken of the need to properly diagnose and treat PTSD but not "over-label" returning veterans with diagnoses that may no longer be appropriate as these men and women move forward and readjust. Is that a difficult balance to achieve?

Terence M.Keane, PhD

Increased focus on PTSD— Dr. Terence Keane says the new generation of U.S. war veterans is driving expanded research on the roles of traumatic brain injury and psychological stress in health outcomes (Photo by Tom Allen)..

Terence Keane: Yes. We need to mitigate the stigma that's associated with a diagnostic label at the same time that we encourage people to come forward to get appropriate treatment. That's a balancing act on the best of days. Most importantly, we need to do the right thing by the returning veterans—whether that means providing diagnosis and intervention early on, or adopting a wait-and-see attitude. I think both approaches have a place.

RC: The Department of Defense has stepped up efforts to remove the stigma of PTSD treatment—for example, by changing its security-clearance procedure so that applicants need not disclose past mental health care that was "strictly related to adjustments from service in a military combat environment." Do you think this will have a positive impact on PTSD care?

TK: It may take some time to gauge the real impact, but I think this is a major step forward for DoD and a very optimistic change in policy. I'm convinced that DoD leadership is invested in the mental health fitness of their workforce and has every reason to promote the use of treatment resources. From my point of view, what's important is making sure these policies are implemented all the way up and down the line.

RC: Where are we today with PTSD care in relation to the Vietnam era?

TK: We're so much better equipped today than even after the first Persian Gulf War, letalone Vietnam, Korea or World War II. We now have screening instruments, real-time information about the psychological status of returning troops, diagnostic interviews, and new treatment models and methods. We now need to apply these models consistently across the entire country and disseminate the evaluation and treatment tools that have been developed in and outside VA.

RC: To what extent has closer collaboration between VA and DoD helped to enable these advances?

exposure therapyDr. Sarah Miyahira of the Honolulu VA works with a service member just back from Iraq

High-tech therapy—Among the newer PTSD treatments being evaluated by VA investigators is the use of computer-generated virtual reality environments (as seen in the image above) as an aid to prolonged exposure therapy. At right, Dr. Sarah Miyahira of the Honolulu VA works with a service member just back from Iraq (Photo by Lucy Pemoni).

TK: I was on a Web broadcast this morning with Col. [Elspeth Cameron] Ritchie, a psychiatrist for the Army in DC, and there were over 500 people across the country taking part and interested in learning about returning war vets. This would not have happened 15 or 20 years ago. The fact that so many professionals tuned in to hear this program represents the great progress that’s been made, in part through increased collaboration between VA and DoD.

RC: What steps have been taken to ensure uniform assessment of PTSD?

TK: Brian Marx, Paula Schnurr, Matthew Friedman [of the National Center for PTSD] and I are involved in a project that will disseminate evidence-based approaches to the assessment of PTSD nationwide. We've developed a Best Practice Guideline for the assessment of PTSD. Following a recommendation from the Institute of Medicine, VA will disseminate these best practices nationwide to bring uniformity to the process of evaluating veterans seeking compensation for psychological war injuries.

RC: In your JRRD editorial, you write that "silo-based studies of PTSD may have contributed to the current state of knowledge, but what is needed now is greater integration across disciplines and specialties." Could you elaborate?

TK: I was calling for the integration of molecular biology, genomics, proteomics, clinical psychology, and psychiatry. That's the next direction that has to be explored. These are the kinds of things that will yield important and fruitful directions for PTSD.

RC: One of the major themes emerging for clinicians and researchers is the overlap and interplay between PTSD and traumatic brain injury (TBI)—sorting out the effects of each and identifying the best treatments. How is that problem being addressed?

TK: This particular cohort of war veterans is going to stimulate much greater research on the role of traumatic brain injury and the role of psychological stress in health outcomes, much as the Vietnam veterans served to improve recognition, diagnosis and treatment of people with PTSD of all sorts. We’re looking very carefully at trying to understand blast injury, TBI and stress concurrently. But the answers aren’t there yet. There will need to be a lot of cross-disciplinary collaboration and some public sector and private sector integration—VA, DoD, the National Institutes of Health and the private sector all have a role to play in trying to help provide the best possible assessment and treatment for people with these conditions.

RC: VA recently gave an additional $2 million in funding to the National Center for PTSD. What are the current research priorities for the center?

TK: Our priorities are the development of a PTSD registry, the development of telehealth and Internet-based interventions, and the dissemination of existing evidence-based assessment instruments and treatment tools. Keeping in mind that VA has hired hundreds of new mental health providers in the last couple of years, it seems important that we provide outstanding mentorship and education for these new people so they benefit from the prior generation’s experiences in developing these instruments and treatments.